WO2024077625A1 - 电池及用电设备 - Google Patents

电池及用电设备 Download PDF

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Publication number
WO2024077625A1
WO2024077625A1 PCT/CN2022/125506 CN2022125506W WO2024077625A1 WO 2024077625 A1 WO2024077625 A1 WO 2024077625A1 CN 2022125506 W CN2022125506 W CN 2022125506W WO 2024077625 A1 WO2024077625 A1 WO 2024077625A1
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WO
WIPO (PCT)
Prior art keywords
battery
battery cells
along
battery cell
cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/125506
Other languages
English (en)
French (fr)
Inventor
刘瑞堤
王增忠
吴友鑫
王鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP22961811.1A priority Critical patent/EP4478502A4/en
Priority to PCT/CN2022/125506 priority patent/WO2024077625A1/zh
Priority to CN202280089608.9A priority patent/CN118679627A/zh
Priority to KR1020247030592A priority patent/KR20240152870A/ko
Priority to JP2024551593A priority patent/JP2025512244A/ja
Priority to CN202321962908.1U priority patent/CN220692169U/zh
Publication of WO2024077625A1 publication Critical patent/WO2024077625A1/zh
Priority to US18/902,431 priority patent/US20250023168A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery and an electrical device.
  • a power battery generally includes a housing and a plurality of battery cells, wherein the plurality of battery cells are arranged in the housing.
  • the existing arrangement of the battery cells results in low space utilization of the battery, which is not conducive to improving the energy density of the battery.
  • the present application provides a battery and an electrical device to solve the problem of low space utilization of existing batteries.
  • a battery comprising a battery array formed by M*N battery cells arranged in M rows and N columns, where M ⁇ 1, N ⁇ 1, and M and N are both positive integers;
  • Each column of battery cells in the battery array is arranged along a first direction, the first direction being the length direction of the battery or the travel direction of an electric device having the battery, and each row of battery cells in the battery array is arranged along a second direction, the second direction intersecting both the first direction and a vertical plane;
  • the maximum size of the battery cell along the second direction is D
  • the maximum size of the battery array along the second direction is D1 wherein N*D/D1 ⁇ [0.70, 0.99].
  • all the battery cells form a battery array, wherein each column of the battery array is arranged along a first direction, and the rows of the battery array are arranged along a second direction.
  • the maximum size of the battery cell is D
  • the maximum size of the battery array is D1.
  • the value of N*D/D1 is set within the interval of [0.70, 0.99], thereby making the battery array structure formed by all the battery cells more compact.
  • the battery array can fully exert its performance and have a more compact structure, so as to improve the space utilization and energy density of the battery.
  • the length direction of the battery is parallel to or intersects with the travel direction of the electric device.
  • the convenience of arranging the battery in the electric device is improved.
  • an adhesive is provided between two adjacent battery cells;
  • N ⁇ 2 in each column of the battery cells, adhesive is provided between two adjacent battery cells.
  • the battery array is arranged in M rows and N columns.
  • the two adjacent battery cells in each column are connected and fixed by adhesive.
  • the two adjacent battery cells in each row are connected and fixed by adhesive.
  • the method of connecting and fixing two adjacent battery cells by adhesive has a simple structure and is easy to implement during the assembly process, thereby speeding up the production rhythm and improving the production efficiency.
  • two adjacent battery cells are spaced apart. In this embodiment, when a battery cell is deformed, the impact on the adjacent battery cell can be reduced, thereby improving the safety of the battery during use.
  • a partition component is provided between two adjacent battery cells
  • N ⁇ 2 in the battery array, N ⁇ 2, and in each column of the battery cells, a partition component is provided between two adjacent battery cells.
  • a partition is provided between two adjacent battery cells in each column, so that the two adjacent battery cells are spaced apart, thereby reducing the adverse effects between the two adjacent battery cells, allowing the battery to fully exert its performance, and also improving the safety of the battery during use.
  • a partition is provided between two adjacent battery cells in each row, so that the two adjacent battery cells are spaced apart, which can also reduce the adverse effects between the two adjacent battery cells, allowing the battery to fully exert its performance, and also improving the safety of the battery during use.
  • the partition component is bonded and fixed to the battery cell.
  • the partition component is connected to the battery cell by bonding, which has a simple structure and is easy to implement during the assembly process, so that the production cycle can be accelerated, thereby improving production efficiency and reducing manufacturing costs.
  • the partition component includes at least one of a heat conductor, a buffer, a partition plate, and a partition beam.
  • the partition component is set to at least one of a heat conductor, a buffer, a partition plate, and a partition beam.
  • the battery cell includes multiple surfaces, the multiple surfaces include a first surface and a second surface, the first surface is the surface with the largest area, and the area of the second surface is smaller than the area of the first surface, the first surface is arranged along the first direction and intersects with a horizontal plane, the second surface is arranged along the second direction and intersects with a horizontal plane, along the first direction, the second surfaces of two adjacent battery cells in each column of the battery cells are arranged opposite to each other, and along the second direction, the first surfaces of two adjacent battery cells in each row of the battery cells are arranged opposite to each other.
  • the first surface is the surface with the largest area of the battery cell, and the area of the second surface is smaller than that of the first surface.
  • the battery cell includes multiple surfaces, the multiple surfaces include a first surface and a second surface, the first surface is the surface with the largest area, and the area of the second surface is smaller than the area of the first surface, the second surface is arranged along the first direction and intersects with a horizontal plane, the first surface is arranged along the second direction and intersects with a horizontal plane, along the first direction, the first surfaces of two adjacent battery cells in each column of the battery cells are arranged opposite to each other, and along the second direction, the second surfaces of two adjacent battery cells in each row of the battery cells are arranged opposite to each other.
  • the first surface is the surface with the largest area of the battery cell, and the area of the second surface is smaller than that of the first surface.
  • the battery cell includes multiple surfaces, and the multiple surfaces include a first surface with the largest area.
  • the first surfaces of two adjacent battery cells in each column of the battery cells are arranged relative to each other, and along the second direction, the first surfaces of two adjacent battery cells in each row of the battery cells are arranged in a staggered manner.
  • the first surface is the surface with the largest area of the battery cell, and is arranged by the first surfaces of two adjacent battery cells in each row and the first surfaces of two adjacent battery cells in each column, so that the battery array can meet the needs of different batteries to improve the applicability of the battery.
  • the battery cell includes multiple surfaces, the multiple surfaces include a first surface with the largest area, along the first direction, the first surfaces of two adjacent battery cells in each column of the battery cells are staggered, and along the second direction, the first surfaces of two adjacent battery cells in each row of the battery cells are arranged relative to each other.
  • the first surface is the surface with the largest area of the battery cell, and is arranged by the first surfaces of two adjacent battery cells in each row and the first surfaces of two adjacent battery cells in each column, so that the battery array can meet the needs of different batteries to improve the applicability of the battery.
  • the partition member includes a heat conductor, the heat conductor is arranged along the first direction and intersects with the second direction, at least one side of each column of battery cells is provided with the heat conductor, and each column of battery cells is thermally connected to one of the heat conductors.
  • a heat conductor is provided, and the arrangement of the heat conductor is arranged so that each column of battery cells can be thermally connected to the heat conductor, so as to achieve effective heat dissipation of each column of battery cells, thereby maintaining the battery cells within a relatively safe operating temperature range, thereby improving the safety of battery use.
  • a channel for accommodating a heat exchange medium is provided in the heat conductive member.
  • the battery cell transfers heat with the heat exchange medium in the channel through the heat conductive member, and the heat exchange medium flows in the channel.
  • This heat exchange method has high heat exchange efficiency and simple structure.
  • the battery further comprises a current collecting member, wherein the current collecting member is in fluid communication with the heat conducting member;
  • the current collecting member is provided at one end of the heat conducting member located in the first direction, or the current collecting members are provided at both ends of the heat conducting member located in the first direction.
  • the current collector is provided to collect the heat exchange medium in the heat conductive member, reducing the number of components, thereby improving the space utilization rate in the box.
  • the current collector is arranged in a position to avoid squeezing or impact, reducing the possibility of damage to the current collector, so that the heat exchange medium can fully dissipate heat for the battery, further reducing the safety hazard caused by excessive temperature of the battery.
  • the two current collectors are arranged at one end of the heat conductive member in the first direction, and the two current collectors are arranged along the third direction, and the first direction, the second direction and the third direction intersect each other.
  • two current collectors are provided, thereby improving the current collection performance of the heat exchange medium, so that the heat exchange medium can have a good flow rate, and further improving the heat exchange capacity of the heat exchange medium to the battery cell.
  • the two current collectors are jointly provided at one end of the first direction and arranged along the third direction, which can effectively reduce the space occupied by the current collectors in the battery along the first direction, thereby facilitating the arrangement of other structures in the battery.
  • the partition member includes a heat conductor, the heat conductor is arranged along the second direction and intersects with the first direction, at least one side of each row of battery cells is provided with the heat conductor, and each row of battery cells is thermally connected to one of the heat conductors.
  • a heat conductor is provided, and the arrangement of the heat conductor is arranged so that each row of battery cells can be thermally connected to the heat conductor, so as to achieve effective heat dissipation of each row of battery cells, thereby maintaining the battery cells within a relatively safe operating temperature range, thereby improving the safety of battery use.
  • the battery cell includes an electrode assembly
  • the electrode assembly includes a main body and a tab protruding from the main body, the tab being electrically connected to the electrode terminal; along the second direction, the projections of the heat conductive member and the main body at least partially overlap and have an overlapping area.
  • the heat conductive member can effectively exchange heat with the main body, thereby improving the heat exchange effect on the battery cell.
  • the size of the main body is L1
  • the size of the heat conductor is L2
  • the first direction, the second direction and the third direction intersect each other, wherein 0.5 ⁇ L2/L1 ⁇ 1.5.
  • the L2/L1 range value is set within the interval [0.5, 1.5], which can reduce the space occupied by the heat conductive member in the third direction, so that the space utilization rate of the battery is further improved.
  • the size of the overlapping area is L3, 0.5 ⁇ L3/L1 ⁇ 1.
  • the heat exchange area between the heat conductor and the main body can be reasonably set, which can greatly enhance the heat exchange effect of the heat conductor on the main body.
  • the battery cell includes an electrode terminal, and the electrode terminal is provided on at least one of the plurality of surfaces.
  • the electrode terminal is provided, and the battery cell is electrically led out through the battery terminal, thereby ensuring that the battery cell can effectively realize charging and discharging operations.
  • the plurality of surfaces further include a third surface, the first surface, the second surface and the third surface intersect each other, and the electrode terminal is disposed on the third surface.
  • the structure of the battery cell can meet the installation requirements of different batteries, thereby increasing the scope of application of the battery cell.
  • the number of the third surfaces is two, the two third surfaces are arranged opposite to each other and intersect with the first surface respectively, the battery cell includes two electrode terminals with opposite polarities, the two electrode terminals with opposite polarities are arranged on one third surface, or the two electrode terminals with opposite polarities are arranged on two third surfaces respectively.
  • the structure of the battery cell can meet the installation requirements of different batteries, thereby improving the application range of the battery cell.
  • the battery cell includes two electrode terminals with opposite polarities, the two electrode terminals with opposite polarities are arranged on the third surface, or one of the two electrode terminals with opposite polarities is arranged on the third surface, and the housing of the battery cell constitutes the other of the two electrode terminals with opposite polarities.
  • the structure of the battery cell can meet the installation requirements of different batteries, thereby increasing the scope of application of the battery cell.
  • the battery cell includes the first surface and a fourth surface arranged opposite to the first surface, the first surface and the fourth surface are arranged opposite to each other along the first direction or the second direction; the edge of the fourth surface is provided with a recess; the first surface is used to set the electrode terminal; the electrode terminal is protruding from the first surface in the second direction and corresponds to the recess.
  • the structure of the battery cell can meet the installation requirements of different batteries, thereby improving the application range of the battery cell.
  • each column of battery cells includes at least two battery cells, and the at least two battery cells are arranged along the first direction.
  • at least two battery cells are arranged along the first direction to facilitate the layout of the battery cells inside the box.
  • the maximum size of the battery cell is L, wherein the L/D range is 1 to 30.
  • the power of the battery cell can be maximized.
  • the maximum size of the battery cell is L; along the third direction, the maximum size of the battery cell is H, and the L/H range is 0.5 to 6; the first direction, the second direction and the third direction intersect each other.
  • the battery cells are arranged according to the above size ratios to maximize the power of the battery cells.
  • the ratio between N*D and D2 is set so that the battery array can be more adapted to the battery box, and on the basis of satisfying the battery array installation, the space utilization of the battery can be effectively improved, so that the energy density of the battery can be effectively improved.
  • the battery cell is fixedly connected to the box body through a first adhesive layer
  • the battery further includes a heat conductive member, which is heat conductively connected to the battery cell through a second adhesive layer, and the thermal conductivity of the first adhesive layer is less than or equal to the thermal conductivity of the second adhesive layer.
  • the thermal conductivity of the first adhesive layer is set to be less than or equal to the thermal conductivity of the second adhesive layer to ensure more effective heat dissipation of the battery cell through the heat conductive member.
  • the ratio of the thermal conductivity of the first adhesive layer to the thermal conductivity of the second adhesive layer is in the range of 0.1 to 1. In this embodiment, the above ratio range can effectively dissipate heat from the battery cell through the thermal conductive member.
  • the battery cell includes an electrode assembly;
  • the electrode assembly is a wound structure and is flat, and the outer surface of the electrode assembly includes two flat surfaces, and the two flat surfaces face each other along the second direction;
  • the electrode assembly is a laminated structure, and the first electrode sheet, the diaphragm, and the second electrode sheet of the electrode assembly are stacked along the second direction.
  • the electrode assembly by arranging the electrode assembly into a winding structure and being flat, and the outer surface of the electrode assembly includes two flat surfaces, the two flat surfaces face each other along the second direction, or the electrode assembly is a stacked structure, the space occupied by the electrode assembly in the first direction is reduced, so as to facilitate the layout and installation of other components of the battery in the first direction.
  • the second aspect of the present application proposes an electric device, comprising the battery as described above, wherein the battery is used to provide electric energy to drive the electric device to move.
  • the first direction is the moving direction of the electric device.
  • the first direction is set as the walking direction of the electrical equipment, and the third direction intersects with the first direction and the horizontal direction respectively.
  • the battery cell located inside the battery box has a first surface and a second surface.
  • the electrode terminal is set on the first surface, and the second surface is connected to the box. The setting of the first direction facilitates the installation and layout of the battery on the electrical equipment, and meets the usage requirements of different electrical equipment by adjusting the arrangement of the battery cells inside the box.
  • FIG1 schematically shows a schematic structural diagram of a vehicle according to an embodiment of the present application
  • FIG2 schematically shows an exploded structural diagram of a battery according to an embodiment of the present application
  • FIG3 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application
  • FIG4 schematically shows an exploded structural diagram of a battery cell according to an embodiment of the present application
  • FIG5 schematically shows an exploded structural diagram of a battery according to an embodiment of the present application
  • FIG6 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG6 ;
  • FIG8 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG9 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG8 ;
  • FIG10 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG. 11 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG12 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG10 and FIG11;
  • FIG13 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG14 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG13;
  • FIG15 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG16 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG15;
  • FIG17 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG18 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG17;
  • FIG19 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG20 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG19;
  • FIG21 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG22 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG21;
  • FIG23 schematically shows a schematic structural diagram of a battery assembly according to an embodiment of the present application.
  • FIG24 is a schematic diagram of the structure of a battery cell in the battery assembly shown in FIG23;
  • FIG25 schematically shows a schematic structural diagram of a heat conducting member according to an embodiment of the present application.
  • FIG26 schematically shows a schematic structural diagram of the second part of the box according to an embodiment of the present application.
  • FIG27 schematically shows a schematic structural diagram of a battery according to an embodiment of the present application (the first part of the box is not shown);
  • FIG28 is a schematic diagram of the enlarged structure of part A in the structure shown in FIG27;
  • Fig. 29 is a cross-sectional view of the B-B portion of the structure shown in Fig. 27;
  • FIG30 is a schematic diagram of an enlarged structure of portion C in the structure shown in FIG29;
  • FIG31 is a schematic diagram of the structure of the battery assembly shown in FIG27;
  • FIG32 is a schematic structural diagram of the battery assembly shown in FIG31 from another perspective
  • Figure 33 is a schematic diagram of the distribution structure of batteries on a vehicle provided in one embodiment of the present application.
  • 20 battery array
  • 21 battery cell
  • 211 housing
  • 212 end cover
  • 213 electrode assembly
  • 2131 main body
  • 2132 tab
  • 214 electrode terminal
  • 215 pressure relief mechanism
  • 216 first surface
  • 217 second surface
  • 218 third surface
  • the term "and/or" is only a description of the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • multiple refers to more than two (including two).
  • multiple groups refers to more than two groups (including two groups), and “multiple pieces” refers to more than two pieces (including two pieces).
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.
  • a power battery generally includes a casing and a plurality of battery cells, and all the battery cells are arranged in the casing.
  • the existing arrangement of the battery cells results in low space utilization of the battery, which is not conducive to improving the energy density of the battery. Therefore, how to solve the problem of low space utilization of the existing battery has become a technical problem that technical personnel in this field urgently need to solve.
  • the battery cells in the battery box form a battery array, wherein the battery array includes M*N battery cells, M ⁇ 1, N ⁇ 1, and M and N are both positive integers.
  • Each column of battery cells in the battery array is arranged along a first direction, which is the length direction of the battery or the walking direction of the electrical equipment with the battery.
  • Each row of battery cells in the battery array is arranged along a second direction, which intersects the first direction and the vertical plane.
  • the maximum size of the battery cell along the second direction is D
  • the maximum size of the battery array along the second direction is D1 wherein N*D/D1 ⁇ [0.70, 0.99], so that the battery array structure formed by all the battery cells is more compact.
  • the battery cells involved in the embodiments of the present application can be used, but not limited to, in electrical devices such as vehicles, ships or aircraft.
  • a power supply system comprising the battery cells, batteries, etc. involved in the present application can be used to form the electrical device.
  • the electric device using the battery as the power source may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc.
  • the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc.
  • the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.
  • FIG. 1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.
  • the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle.
  • the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • a battery 10 is arranged inside the vehicle, and the battery 10 can be arranged at the bottom, head or tail of the vehicle.
  • the battery 10 can be used to power the vehicle.
  • the battery 10 can be used as an operating power source for the vehicle.
  • the vehicle may also include a controller 11 and a motor 12.
  • the controller 11 is used to control the battery 10 to power the motor 12, for example, for starting, navigating and driving the vehicle. Working power requirements.
  • the battery 10 can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle 0, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.
  • the battery 10 may include a plurality of battery cells, and a battery cell refers to the smallest unit that constitutes a battery assembly or a battery pack.
  • a plurality of battery cells can be connected in series and/or in parallel via electrode terminals for use in various applications.
  • the battery 10 mentioned in the present application includes a battery assembly or a battery pack. Among them, a plurality of battery cells can be connected in series, in parallel, or in mixed connection, and mixed connection refers to a mixture of series and parallel connection.
  • the battery 10 may also be referred to as a battery pack.
  • a plurality of battery cells may directly constitute a battery pack, or may first constitute a battery assembly, and then the battery assembly may constitute a battery pack.
  • FIG2 shows a schematic diagram of the structure of a battery 10 according to an embodiment of the present application.
  • the battery 10 may include a plurality of battery assemblies 20 and a housing 30, wherein the plurality of battery assemblies 20 are contained inside the housing 30.
  • the housing 30 is used to contain battery cells 21 or battery assemblies 20 to prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • the housing 30 may be a simple three-dimensional structure such as a single cuboid, cylinder or sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as cuboids, cylinders or spheres, which is not limited in the present application.
  • the housing 30 may be made of alloy materials such as aluminum alloys and iron alloys, or may be polymer materials such as polycarbonate and polyisocyanurate foam plastics, or may be a composite material such as glass fiber and epoxy resin, which is not limited in the present application.
  • the box body 30 may include a first portion 31 and a second portion 32, the first portion 31 and the second portion 32 cover each other, and the first portion 31 and the second portion 32 jointly define a space for accommodating the battery cell 21.
  • the second portion 32 may be a hollow structure with one end open, and the first portion 31 may be a plate-like structure, the first portion 31 covers the open side of the second portion 32, so that the first portion 31 and the second portion 32 jointly define a space for accommodating the battery cell 21; the first portion 31 and the second portion 32 may also be hollow structures with one side open, and the open side of the first portion 31 covers the open side of the second portion 32.
  • FIG3 shows a schematic diagram of the structure of a battery assembly 20 according to an embodiment of the present application.
  • the battery assembly 20 may include a plurality of battery cells 21.
  • the plurality of battery cells 21 may be connected in series, in parallel, or in a mixed connection to form a battery assembly 20, and the plurality of battery assemblies 20 may be connected in series, in parallel, or in a mixed connection to form a battery.
  • the battery cells 21 may include lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., which are not limited in the embodiments of the present application.
  • the battery cells 21 may be cylindrical, flat, rectangular, or in other shapes, etc., which are not limited in the embodiments of the present application.
  • the battery cells 21 are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, which are not limited in the embodiments of the present application.
  • FIG4 shows a schematic structural diagram of a battery cell 21 according to an embodiment of the present application.
  • the battery cell 21 includes a housing 211 , an end cover 212 and an electrode assembly 213 .
  • the end cap 212 refers to a component that covers the opening of the shell 211 to isolate the internal environment of the battery cell 21 from the external environment.
  • the shape of the end cap 212 can be adapted to the shape of the shell 211 to match the shell 211.
  • the end cap 212 can be made of a material with a certain hardness and strength (such as an aluminum alloy), so that the end cap 212 is not easily deformed when squeezed and collided, so that the battery cell 21 can have a higher structural strength and the safety performance can also be improved.
  • the material of the end cap 212 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose special restrictions on this.
  • an insulating member can also be provided on the inner side of the end cap 212, and the insulating member can be used to isolate the electrical connection components in the shell 211 from the end cap 212 to reduce the risk of short circuit.
  • the insulating member can be plastic, rubber, etc.
  • the shell 211 is a component used to cooperate with the end cap 212 to form the internal environment of the battery cell 21, wherein the formed internal environment can be used to accommodate the electrode assembly 213, the electrolyte and other components.
  • the shell 211 and the end cap 212 can be independent components, and an opening can be set on the shell 211, and the internal environment of the battery cell 21 is formed by covering the opening with the end cap 212.
  • the end cap 212 and the shell 211 can also be integrated. Specifically, the end cap 212 and the shell 211 can form a common connection surface before other components are put into the shell, and when the interior of the shell 211 needs to be encapsulated, the end cap 212 covers the shell 211.
  • the shell 211 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 211 can be determined according to the specific shape and size of the battery cell assembly.
  • the material of the shell 211 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.
  • the present application proposes a battery 10, including a battery array 20 formed by M*N battery cells 21 arranged in M rows and N columns, M ⁇ 1, N ⁇ 1, and M and N are both positive integers.
  • Each column of battery cells 21 in the battery array 20 is arranged along a first direction, the first direction is the length direction of the battery 10 or the walking direction of the electrical device 1 having the battery 10, and each row of battery cells 21 in the battery array 20 is arranged along a second direction, and the second direction intersects with both the first direction and the vertical plane.
  • the maximum dimension of the battery cell 21 along the second direction is D
  • the maximum dimension of the battery array 20 along the second direction is D1, where N*D/D1 ⁇ [0.70, 0.99].
  • the battery array 20 can be at least a one-row and one-column structure, or two-row and one-column structure, or one-row and two-column structure, or two-row and two-column structure.
  • the battery array 20 is a structure of multiple rows (three or more rows) and multiple columns (three or more columns).
  • the battery 10 is an approximately rectangular structure, and the battery 10 has a length direction, a width direction and a height direction.
  • the first direction is the length direction of the battery 10 or the traveling direction of the electrical equipment 1, wherein the length direction of the battery 10 may be the same as or different from the driving direction.
  • the second direction is located in the same plane as the first direction and the two directions intersect.
  • the present application also has a third direction, and the third direction, the second direction and the first direction intersect with each other.
  • all battery cells 21 form a battery array 20, wherein each column of the battery array 20 is arranged along a first direction, and each row of the battery array 20 is arranged along a second direction. In the second direction, the maximum size of the battery cell 21 is D, and the maximum size of the battery array 20 is D1.
  • the value of N*D/D1 is set in the interval of [0.70, 0.99], so that the battery array 20 formed by all battery cells 21 has a more compact structure.
  • the battery array 20 may also be referred to as a battery assembly.
  • N*D/D1 the closer the value of N*D/D1 is to 1, the higher the space utilization of the battery 10 is, and the greater the energy density of the battery 10 is.
  • the value of N*D/D1 cannot be 1.
  • the value of N*D/D1 is set in the range of [0.70, 0.99], so that the structure of the battery array 20 is more compact while meeting the use of the battery 10, so as to improve the space utilization and energy density of the battery 10.
  • the value of N*D/D1 can be 0.70, 0.75, 0.80, 0.85, 0.90, 0.95, ... 0.99.
  • the maximum dimension of the battery cell 21 is D
  • the maximum dimension of the battery array 20 is D1
  • the battery array 20 can fully exert its performance, and the structural compactness of the battery array 20 is further improved, which is further beneficial to improving the space utilization and energy density of the battery 10.
  • N*D/D1 can be 0.83, 0.85, 0.87, 0.89, 0.90, 0.92, ..., 0.99.
  • the length direction of the battery cell 21 is consistent with the first direction
  • the width direction of the battery cell 21 is consistent with the second direction
  • the height direction of the battery cell 21 is consistent with the third direction as an example, wherein D is the width of the battery cell 21, and D1 is the width of the battery array 20 in the width direction of the battery cell 21, as shown in Table 1:
  • the length direction of the battery 10 is parallel to or intersects with the moving direction of the electric device 1 .
  • the travel direction of the electric device 1 refers to the direction in which the electric device 1 can produce relative displacement, and the relative displacement can be forward or backward.
  • the length direction of the battery 10 is parallel to the travel direction of the electric device 1
  • the length direction of the battery 10 is set along the travel direction of the electric device 1; when the length direction of the battery 10 intersects with the travel direction of the electric device 1, the length direction of the battery 10 is set at an angle with the travel direction of the electric device 1, and the angle is not equal to 0.
  • the battery 10 can be installed on the electric device 1 according to the needs of the electric device 1, thereby improving the convenience of arranging the battery 10 in the electric device 1.
  • the battery array 20 is arranged in M rows and N columns.
  • the number of battery cells 21 in each row is greater than or equal to two, two adjacent battery cells 21 in each row are connected and fixed using adhesive.
  • the method of connecting and fixing two adjacent battery cells 21 using adhesive has a simple structure and is easy to implement during the assembly process, thereby speeding up the production cycle and improving production efficiency.
  • the adhesive used to connect two adjacent battery cells 21 in each row may be a paste-like substance or a double-sided adhesive.
  • the rows in the battery array 20 may be arranged along the first direction or along the second direction.
  • the adhesive used to connect two adjacent battery cells 21 in each column may be a paste-like substance or a double-sided adhesive.
  • the columns in the battery array 20 may be arranged along the first direction or along the second direction.
  • the battery array 20 is arranged in M rows and N columns.
  • the number of battery cells 21 on each column is greater than or equal to two, two adjacent battery cells 21 in each column are connected and fixed using adhesive.
  • the method of connecting and fixing two adjacent battery cells 21 using adhesive has a simple structure and is easy to implement during the assembly process, thereby speeding up the production cycle and improving production efficiency.
  • two adjacent battery cells 21 are arranged with an interval therebetween.
  • the battery array 20 includes M rows and N columns, wherein when both M rows and N columns are greater than 1, two adjacent battery cells 21 in each row are spaced apart, and two adjacent battery cells 21 in each column are spaced apart, and by spacing two adjacent battery cells 21 apart, direct contact between two adjacent battery cells 21 can be avoided.
  • M rows and N columns are greater than 1
  • two adjacent battery cells 21 in each row are spaced apart
  • two adjacent battery cells 21 in each column are spaced apart, and by spacing two adjacent battery cells 21 apart, direct contact between two adjacent battery cells 21 can be avoided.
  • the impact on the adjacent battery cell 21 can be reduced, thereby improving the safety of the battery 10 during use.
  • the battery cells 21 will expand during use. If two adjacent battery cells 21 are in contact with each other, when one of the battery cells 21 expands, it will cause the other battery cell 21 to be squeezed, thereby affecting the performance of the other battery cell 21.
  • a partition component is provided between two adjacent battery cells 21 .
  • a partition component is provided between two adjacent battery cells 21 in each row, so that two adjacent battery cells 21 are spaced apart, thereby reducing the adverse effects between two adjacent battery cells 21, allowing the battery 10 to fully exert its performance and improving the safety of the battery 10 during use.
  • a partition component is disposed between two adjacent battery cells 21 .
  • a partition component is provided between two adjacent battery cells 21 in each column, so that two adjacent battery cells 21 are spaced apart, thereby reducing the adverse effects between two adjacent battery cells 21, allowing the battery 10 to fully exert its performance and improving the safety of the battery 10 during use.
  • providing a partition between two adjacent battery cells 21 in each column can improve the overall strength of the battery array 20 , further reduce the adverse effects of external factors such as vibration on the battery array 20 , and further effectively enhance the adaptability of the battery 10 .
  • the partition component is bonded and fixed to the battery cell 21 .
  • the partition component is connected to the battery cell 21 by bonding and fixing.
  • the bonding and fixing method has a simple structure and is easy to implement during the assembly process, so that the production cycle can be accelerated, thereby improving production efficiency and reducing manufacturing costs.
  • the partition component includes at least one of a heat conductor 40 , a buffer, a partition plate, and a partition beam.
  • the partition component is set to at least one of a heat conductor 40, a buffer, a partition plate and a partition beam.
  • a partition component can be set according to different needs to meet the corresponding usage requirements of the battery array 20.
  • the partition component is a buffer member, which is disposed between two adjacent battery cells 21.
  • the buffer member can absorb the tolerance generated during the manufacturing process of the two adjacent battery cells 21 to ensure the effective installation of the battery cells 21.
  • the buffer member can provide a buffer between the two adjacent battery cells 21 to reduce the situation where the two adjacent battery cells 21 are squeezed and damaged by each other.
  • the partition component is a partition plate, which is disposed between two adjacent battery cells 21 .
  • the partition plate is used to separate the two adjacent battery cells 21 to prevent the two adjacent battery cells 21 from being squeezed and destroyed.
  • the partition component is a partition beam, which is disposed between two adjacent battery cells 21 .
  • the partition beam is used to separate the two adjacent battery cells 21 to prevent the two adjacent battery cells 21 from being squeezed and destroyed.
  • the battery cell 21 includes multiple surfaces, the multiple surfaces include a first surface 216 and a second surface 217, the first surface 216 is the surface with the largest area, and the area of the second surface 217 is smaller than the area of the first surface 216, the first surface 216 is arranged along a first direction and intersects with a horizontal plane, the second surface 217 is arranged along a second direction and intersects with the horizontal plane, along the first direction, the second surfaces 217 of two adjacent battery cells 21 in each column of battery cells 21 are relatively arranged, and along the second direction, the first surfaces 216 of two adjacent battery cells 21 in each row of battery cells 21 are relatively arranged.
  • the first surface 216 is the surface with the largest area of the battery cell 21, and the first surface 216 is arranged along the first direction and intersects with the horizontal plane.
  • a heat conductor 40 may be arranged on one side of the first surface 216, and the heat conductor 40 and the first surface 216 are connected by heat conduction to increase the contact area between the heat conductor 40 and the battery cell 21, thereby improving the heat dissipation efficiency of the battery cell 21.
  • the first surface 216 is the surface with the largest area of the battery cell 21, and the first surface 216 is arranged along the first direction and intersects with the horizontal plane.
  • a corresponding reinforcement structure may be arranged on one side of the box body 30 corresponding to the first surface 216 to improve the protection performance of the battery cell 21.
  • the first surface 216 is the largest surface of the battery cell 21 , and the area of the second surface 217 is smaller than that of the first surface 216 .
  • the battery array 20 can meet the requirements of different batteries 10 , thereby improving the applicability of the battery 10 .
  • the two can be combined with other surfaces of the battery cell 21 to form various forms of battery cells 21 , such as square shell battery cells, blade battery cells and one-stop battery cells.
  • the battery cell 21 includes multiple surfaces, the multiple surfaces include a first surface 216 and a second surface 217, the first surface 216 is the surface with the largest area, and the area of the second surface 217 is smaller than the area of the first surface 216, the second surface 217 is arranged along a first direction and intersects with a horizontal plane, the first surface 216 is arranged along a second direction and intersects with the horizontal plane, along the first direction, the first surfaces 216 of two adjacent battery cells 21 in each column of battery cells 21 are arranged relative to each other, and along the second direction, the second surfaces 217 of two adjacent battery cells 21 in each row of battery cells 21 are arranged relative to each other.
  • the first surface 216 is the surface with the largest area of the battery cell 21, and the first surface 216 is arranged along the second direction and intersects with the horizontal plane.
  • a heat conductor 40 may be arranged on one side of the first surface 216, and the heat conductor 40 and the first surface 216 are connected by heat conduction to increase the contact area between the heat conductor 40 and the battery cell 21, thereby improving the heat dissipation efficiency of the battery cell 21.
  • the first surface 216 is the surface with the largest area of the battery cell 21, and the first surface 216 is arranged along the second direction and intersects with the horizontal plane.
  • a corresponding reinforcement structure may be arranged on the side of the box body 30 corresponding to the first surface 216 to improve the protection performance of the battery cell 21.
  • the first surface 216 is the largest surface of the battery cell 21 , and the area of the second surface 217 is smaller than that of the first surface 216 .
  • the battery array 20 can meet the requirements of different batteries 10 , thereby improving the applicability of the battery 10 .
  • the two can be combined with other surfaces of the battery cell 21 to form various forms of battery cells 21 , such as square shell battery cells, blade battery cells and one-stop battery cells.
  • the battery cell 21 includes multiple surfaces, the multiple surfaces include a first surface 216 with the largest area, along the first direction, the first surfaces 216 of two adjacent battery cells 21 in each column of battery cells 21 are relatively arranged, and along the second direction, the first surfaces 216 of two adjacent battery cells 21 in each row of battery cells 21 are staggered.
  • the first surface 216 is the surface with the largest area of the battery cell 21.
  • the battery cell formed by combining other surfaces of the battery cell 21 may be a cylindrical structure.
  • the battery cell 21 includes multiple surfaces, the multiple surfaces include a first surface 216 with the largest area, along the first direction, the first surfaces 216 of two adjacent battery cells 21 in each column of battery cells 21 are staggered, and along the second direction, the first surfaces 216 of two adjacent battery cells 21 in each row of battery cells 21 are relatively arranged.
  • the first surface 216 is the surface with the largest area of the battery cell 21.
  • the battery cell formed in combination with other surfaces of the battery cell 21 is a cylindrical structure.
  • the partition component includes a heat conductive member 40, which is arranged along the first direction and intersects with the second direction, a heat conductive member 40 is provided on at least one side of each column of battery cells 21, and each column of battery cells 21 is thermally connected to a heat conductive member 40 respectively.
  • a heat conducting member 40 is provided, and the heat conducting member 40 is provided in the box body 30 of the battery 10, and the heat conducting member 40 is provided along the first direction. At least one side of each column of battery cells 21 is thermally connected to the heat conducting member 40, so as to achieve effective heat dissipation of each column of battery cells 21, thereby maintaining the battery cells 21 in a relatively safe operating temperature range, thereby improving the safety of the battery 10.
  • the surface of the battery cell 21 thermally connected to the heat conductive member 40 may be the surface with the largest area of the battery cell 21, which can increase the contact area between the heat conductive member 40 and the battery cell 21, thereby improving the heat dissipation performance of the battery cell 21.
  • the surface of the battery cell 21 thermally connected to the heat conductive member 40 may not be the surface with the largest area, so as to meet the requirements of different installation layouts in the battery cell 21.
  • a heat conducting member 40 may be provided on one side or on both sides of each column of battery cells 21 , so as to meet the heat dissipation requirements of the battery 10 .
  • the heat conducting member 40 may be an electronic cooling sheet, such as a PTC.
  • a channel for accommodating a heat exchange medium is provided in the heat conducting member 40 .
  • the heat conducting member 40 is connected to a medium circulation device, and a heat exchange medium (such as water or oil, etc.) is injected into the channel, and the heat exchange medium can circulate in the channel.
  • a heat exchange medium such as water or oil, etc.
  • the battery cell 21 transfers heat with the heat exchange medium in the channel through the heat conducting member 40.
  • the heat exchange medium flows in the channel and takes out the heat exchanged with the battery cell 21.
  • the battery 10 further includes a current collector 50, which is in fluid communication with the heat conducting member 40.
  • the current collector 50 is provided at one end of the heat conducting member 40 in the first direction, or the current collectors 50 are provided at both ends of the heat conducting member 40 in the first direction.
  • the current collector 50 is disposed at one or both ends of the heat conducting member 40 in the first direction.
  • the current collector 50 can collect the heat exchange medium in the heat conducting member 40 , reduce the number of components, and thus improve the space utilization rate in the box body 30 .
  • the setting position of the current collector 50 can avoid squeezing or impact, reducing the possibility of damage to the current collector 50, so that the heat exchange medium can fully dissipate the heat of the battery 10, further reducing the safety hazard caused by excessive temperature of the battery 10.
  • there are two current collecting members 50 which are arranged at one end of the heat conducting member 40 in the first direction, and the two current collecting members 50 are arranged along the third direction, and the first direction, the second direction and the third direction intersect each other.
  • two current collecting members 50 are provided, thereby improving the current collecting performance of the heat exchange medium, so that the heat exchange medium can have a good flow rate, and further improving the heat exchange capacity of the heat exchange medium to the battery cell 21.
  • the two current collectors 50 are disposed together at one end of the first direction and arranged along the third direction, which can effectively reduce the space occupied by the current collectors 50 in the battery 10 along the first direction, thereby facilitating the arrangement of other structures in the battery 10 .
  • the partition component includes a heat conductor 40, which is arranged along the second direction and intersects with the first direction.
  • a heat conductor 40 is provided on at least one side of each row of battery cells 21, and each row of battery cells 21 is thermally connected to a heat conductor 40 respectively.
  • a heat conducting member 40 is provided, and the heat conducting member 40 is provided in the box body 30 of the battery 10, and the heat conducting member 40 is provided along the second direction. At least one side of each column of battery cells 21 is thermally connected to the heat conducting member 40, so as to achieve effective heat dissipation of each column of battery cells 21, thereby maintaining the battery cells 21 in a relatively safe operating temperature range, thereby improving the safety of the battery 10.
  • the surface of the battery cell 21 thermally connected to the heat conductive member 40 may be the surface with the largest area of the battery cell 21, which can increase the contact area between the heat conductive member 40 and the battery cell 21, thereby improving the heat dissipation performance of the battery cell 21.
  • the surface of the battery cell 21 thermally connected to the heat conductive member 40 may not be the surface with the largest area, so as to meet the requirements of different installation layouts in the battery cell 21.
  • a heat conducting member 40 may be provided on one side or on both sides of each column of battery cells 21 , so as to meet the heat dissipation requirements of the battery 10 .
  • the heat conducting member 40 may be an electronic cooling sheet (such as a PTC, etc.), and the heat conducting member 40 may also be provided with a component of a channel for accommodating a heat exchange medium.
  • the battery cell 21 includes an electrode assembly 213, the electrode assembly 213 includes a main body 2131 and a pole ear 2132 protruding from the main body 2131, and the pole ear 2132 is electrically connected to the electrode terminal 214; along the second direction, the projections of the heat conductor 40 and the main body 2131 at least partially overlap and have an overlapping area.
  • the heat generated is mainly concentrated on the main body 2131 of the electrode assembly 213.
  • An overlapping area is set between the heat conductor 40 and the main body 2131, so that the main body 2131 can effectively dissipate heat with the heat conductor 40, thereby improving the heat exchange performance of the heat conductor 40 to the main body 2131, allowing the battery cell 21 to be maintained below a safe temperature, thereby improving safety of use.
  • the size of the main body 2131 is L1
  • the size of the heat conductor 40 is L2
  • the first direction, the second direction and the third direction intersect each other, and 0.5 ⁇ L2/L1 ⁇ 1.5.
  • setting the L2/L1 range value within the interval [0.5, 1.5] can reduce the space occupied by the heat conducting member 40 in the third direction, so that the space utilization rate of the battery 10 is further improved.
  • L2/L1 can be 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, ..., 1.5.
  • the size of the overlapping area is L3, 0.5 ⁇ L3/L1 ⁇ 1.
  • the heat exchange area between the heat conductor 40 and the main body 2131 can be reasonably set, which can greatly enhance the heat exchange effect of the heat conductor 40 on the main body 2131.
  • L3/L1 can be 0.5, 0.6, 0.7, 0.8, 0.9, ..., 1.
  • the battery cell 21 includes an electrode terminal 214 , and the electrode terminal 214 is disposed on at least one of the multiple surfaces.
  • the electrode terminal 214 is provided to realize the electrical extraction of the battery cell 21 through the battery 10 terminal, thereby ensuring that the battery cell 21 can effectively realize the charge and discharge operation.
  • the battery cell 21 has multiple surfaces, and the electrode terminals 214 can be disposed on corresponding surfaces of the battery cell 21 as needed.
  • the multiple surfaces further include a third surface 218 , the first surface 216 , the second surface 217 and the third surface 218 intersect in pairs, and the electrode terminal 214 is disposed on the third surface 218 .
  • the battery cell 21 includes multiple surfaces, including a first surface 216 with the largest area, and the areas of the second surface 217 and the third surface 218 are both smaller than the area of the first surface 216.
  • the structure of the battery cell 21 can meet the installation requirements of different batteries 10, thereby improving the application range of the battery cell 21.
  • the electrode terminal 214 is disposed on the third surface 218 so that the first surface 216 can be thermally connected to the heat conductor 40 to prevent interference between the electrode terminal 214 and the heat conductor 40, thereby ensuring effective heat conduction between the heat conductor 40 and the battery cell 21, and thereby improving the heat dissipation effect of the heat conductor 40 on the battery cell 21.
  • the number of third surfaces 218 is two, the two third surfaces 218 are arranged opposite to each other and intersect with the first surface 216 respectively, and the battery cell 21 includes two electrode terminals 214 with opposite polarities. As shown in Figures 7 and 9, the two electrode terminals 214 with opposite polarities are arranged on one third surface 218, or the two electrode terminals 214 with opposite polarities are respectively arranged on the two third surfaces 218.
  • the battery cell 21 includes multiple surfaces, including a first surface 216, a second surface 217 and a third surface 218, the first surface 216 is the surface with the largest area, and the area of the second surface 217 and the area of the third surface 218 are both smaller than the area of the first surface 216.
  • the two third surfaces 218 are arranged opposite to each other in the first direction.
  • the two electrode terminals 214 with opposite polarities can be arranged on one third surface 218, or the two electrode terminals 214 with opposite polarities can be arranged on two third surfaces 218 respectively.
  • the two third surfaces 218 are arranged opposite to each other in the second direction.
  • the two electrode terminals 214 with opposite polarities can be arranged on one third surface 218, or the two electrode terminals 214 with opposite polarities can be arranged on two third surfaces 218 respectively.
  • the structure of the battery cell 21 can meet the installation requirements of different batteries 10 , thereby improving the application range of the battery cell 21 .
  • the battery cell 21 includes a first surface 216 and a fourth surface arranged opposite to the first surface 216, the first surface 216 and the fourth surface are arranged opposite to each other along the first direction (as shown in FIG. 14) or the second direction (as shown in FIG. 16), and the second direction, the first direction and the third direction intersect each other; a recess is provided on the edge of the fourth surface; the first surface 216 is used to set the electrode terminal 214; the electrode terminal 214 is protruded from the first surface 216 in the second direction and corresponds to the recess.
  • the battery cell 21 includes a plurality of surfaces, the plurality of surfaces include a first surface 216 having the largest area, and the plurality of surfaces also include a fourth surface, and the first surface 216 and the fourth surface are arranged relative to each other in the first direction or the second direction.
  • the electrode terminal 214 of one battery cell 21 is arranged corresponding to the concave portion of the other battery cell 21, and the concave-convex matching structure makes the combined structure formed by the two adjacent battery cells 21 more compact, making the structure of the battery array 20 more compact, which is conducive to improving the space utilization and energy density of the battery 10.
  • the structure of the battery cell 21 can meet the installation requirements of different batteries 10 , thereby increasing the application range of the battery cell 21 .
  • the multiple surfaces also include a third surface 218, the first surface 216, the second surface 217 and the third surface 218 intersect with each other, the third surface 218 is the surface with the largest area, and the areas of the first surface 216 and the second surface 217 are both smaller than the area of the third surface 218.
  • the first surface 216 is arranged along the first direction and intersects with the horizontal plane
  • the second surface 217 is arranged along the second direction and intersects with the horizontal plane
  • the first surface 216 is arranged along the second direction and intersects with the horizontal plane
  • the second surface 217 is arranged along the first direction and intersects with the horizontal plane.
  • the electrode terminal 214 can be arranged on the first surface 216 or the second surface 217. By setting the position of the electrode terminal 214, the structure of the battery cell 21 can meet the installation requirements of different batteries 10, thereby improving the application range of the battery cell 21.
  • the battery cell 21 includes two electrode terminals 214 with opposite polarities, as shown in Figures 7 and 9, the two electrode terminals 214 are arranged on the third surface 218, or as shown in Figure 12, one of the two electrode terminals 214 is arranged on the third surface 218, and the shell 211 of the battery cell 21 constitutes the other of the two electrode terminals 214.
  • the battery cell 21 includes multiple surfaces, including a first surface 216 with the largest area, and the areas of the second surface 217 and the third surface 218 are both smaller than the area of the first surface 216.
  • the structure of the battery cell 21 can meet the installation requirements of different batteries 10, thereby improving the application range of the battery cell 21.
  • each column of battery cells 21 includes at least two battery cells 21 , and the at least two battery cells 21 are arranged along the first direction.
  • At least two battery cells 21 are arranged in a row along the first direction, which facilitates the layout of the battery cells 21 inside the box body 30 .
  • the large surface (surface with the largest area) of the battery cell 21 can be arranged along the first direction and intersecting the horizontal plane, or can be arranged along the second direction and intersecting the horizontal plane.
  • the maximum dimension of the battery cell 21 is L
  • the maximum dimension of the battery cell 21 is D
  • the L/D range is 1-30.
  • the maximum dimension of the battery cell 21 along the first direction is L
  • the maximum dimension of the battery cell 21 along the second direction is D.
  • the size of the battery cell 21 along the first direction will be too large, making it inconvenient to install and reducing the supporting strength of the battery cell 21.
  • the L/D size ratio is less than 1, the size of the battery cell 21 along the first direction will be too small, thereby reducing the power of the battery cell 21.
  • L/D can be 1, 2, 3, 4, 5, 6, 7, 8, ... 30.
  • the battery cell 21 can have different shapes, thereby meeting the requirements of different types of batteries 10.
  • the maximum dimension of the battery cell 21 is H, and the L/H range is 0.5-6; the first direction, the second direction and the third direction intersect each other.
  • the maximum size of the battery cell 21 is L; the maximum size of the battery cell 21 along the first direction is L, and the maximum size of the battery cell 21 along the third direction is H.
  • the battery cell 21 is arranged according to the above-mentioned size ratio, which can maximize the power of the battery cell 21 while ensuring the supporting strength of the battery cell 21.
  • L/H can be 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, ... 6.
  • the battery cell 21 can have different shapes, thereby meeting the requirements of different models of batteries 10.
  • the ratio between N*D and D2 is set so that the battery array 20 can be more adapted to the box 30 of the battery 10, and can effectively improve the space utilization of the battery 10 on the basis of satisfying the installation of the battery array 20, so that the energy density of the battery 10 can be effectively improved.
  • n when the value of n is less than 0.7, the space utilization and energy density of the battery 10 will be reduced. When the value of n is greater than 0.99, it cannot be guaranteed that the battery array 20 can be effectively installed inside the box 30. Therefore, by setting the value of n in the range of [0.7, 0.99], it is possible to effectively take into account the requirements of battery array installation, improving battery space utilization, and improving battery energy density.
  • n can be 0.7, 0.75, 0.8, 0.85, 0.9, 0.95 ... 0.99.
  • the battery cell 21 is fixedly connected to the box body 30 through a first adhesive layer 60
  • the battery 10 also includes a heat conductor 40, which is thermally connected to the battery cell 21 through a second adhesive layer 70, and the thermal conductivity of the first adhesive layer 60 is less than or equal to the thermal conductivity of the second adhesive layer 70.
  • the thermal conductivity of the first adhesive layer 60 is set to be less than or equal to the thermal conductivity of the second adhesive layer 70 to ensure that the heat of the battery cell 21 is more effectively dissipated through the thermal conductive member 40.
  • the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is in the range of 0.1-1.
  • the above ratio ranges can effectively dissipate heat from the battery cells 21 through the heat conducting member 40 .
  • the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is less than 0.1, the thermal conductivity of the first adhesive layer 60 is poor, and the side of the battery cell 21 connected to the first adhesive layer 60 cannot transfer heat through the side of the first adhesive layer 60. At this time, heat transfer only through the side of the second adhesive layer 70 cannot well ensure the heat dissipation effect of the battery cell 21.
  • the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is less than 0.1, the thermal conductivity of the first adhesive layer 60 is stronger than that of the second adhesive layer 70, and the ability of the battery cell 21 to dissipate heat through the heat conductive member 40 is weakened, resulting in poor heat dissipation of the battery cell 21.
  • the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, ..., 1.
  • the first adhesive layer 60 and the second adhesive layer 70 can be the same adhesive, but the thermal conductivity of the two is different, that is, the thermal conductivity of the first adhesive layer 60 is smaller than the thermal conductivity of the second adhesive layer 70.
  • the first adhesive layer 60 and the second adhesive layer 70 can respectively use thermally conductive polyurethane adhesive layers, and add different amounts of thermally conductive particles therein to achieve different thermal conductivities.
  • first adhesive layer 60 and the second adhesive layer 70 may be two different adhesives.
  • first adhesive layer 60 may be structural adhesive, foaming filling adhesive, pressure-sensitive adhesive or potting adhesive
  • second adhesive layer 70 may be thermal conductive adhesive.
  • the battery cell 21 includes an electrode assembly 213; the electrode assembly 213 is a wound structure and is flat, the outer surface of the electrode assembly 213 includes two flat surfaces, and the two flat surfaces face each other along the second direction, or the electrode assembly 213 is a stacked structure, and the first electrode sheet, the diaphragm, and the second electrode sheet of the electrode assembly 213 are stacked along the second direction.
  • the electrode assembly 213 is a component in the battery cell 21 where electrochemical reactions occur.
  • One or more electrode assemblies 213 may be included inside the battery cell 21.
  • the electrode assembly 213 is mainly formed by winding or stacking (placing) pole sheets (positive pole sheets and negative pole sheets), and a separator is usually provided between the positive pole sheet (first pole sheet) and the negative pole sheet (second pole sheet).
  • the portion of the pole sheets (first pole sheet and second pole sheet) with active materials constitutes the main body 2131 of the electrode assembly 213, and the portions of the first pole sheet and the second pole sheet without active materials each constitute a pole ear 2132.
  • the positive pole ear and the negative pole ear may be located together at one end of the main body 2131 or respectively at both ends of the main body 2131.
  • the electrode assembly 213 by configuring the electrode assembly 213 to be a wound structure and flat, and the outer surface of the electrode assembly 213 includes two flat surfaces, the two flat surfaces face each other along the second direction, or configuring the electrode assembly 213 to be a stacked structure, the space occupied by the electrode assembly 213 in the second direction is reduced, so as to facilitate the layout and installation of other components of the battery 10 in the second direction.
  • the battery cell 21 further includes a pressure relief mechanism 215 , and the pressure relief mechanism 215 is disposed on any surface of the battery cell 21 .
  • the pressure inside the battery cell 21 can be promptly released through the pressure relief mechanism 215 to avoid safety hazards such as explosion of the battery cell 21 .
  • the pressure relief mechanism 215 may be disposed on the first surface 216 , the second surface 217 , the third surface 218 or other surfaces of the battery cell 21 .
  • the pressure relief mechanism 215 and the electrode terminal 214 may be disposed on the first surface 216 , the second surface 217 , or the third surface 218 .
  • the pressure relief mechanism 215 and the electrode terminal 214 are both arranged on the first surface 216.
  • the pressure relief mechanism 215 By arranging the pressure relief mechanism 215 on the first surface 216, it is convenient to simultaneously install the pressure relief mechanism 215 and the electrode terminal 214, thereby improving the convenience of assembly and improving the production efficiency.
  • the second surface 217 is connected to the box body 30 , so that the box body 30 is used to protect the outer side of the pressure relief mechanism 215 , thereby reducing the possibility of the pressure relief mechanism 215 being impacted.
  • the setting position of the pressure relief mechanism 215 can meet the requirements of different types of battery cells 21, further improving the safety performance of the battery 10.
  • the second aspect of the present application proposes an electric device 1, comprising a battery 10 as described above, wherein the battery 10 is used to provide electric energy to drive the electric device 1 to move.
  • the first direction is the moving direction of the electric device 1 .
  • the first direction is set as the walking direction of the electrical equipment 1, and the third direction intersects with the first direction and the horizontal direction respectively.
  • the battery cell 21 located inside the box 30 of the battery 10 has a first surface 216 and a second surface 217.
  • the first surface 216 is provided with an electrode terminal 214, and the second surface 217 is connected to the box 30.
  • the setting of the first direction facilitates the installation and layout of the battery 10 on the electrical equipment 1, and by adjusting the arrangement of the battery cell 21 inside the box 30, the use requirements of different electrical equipment 1 can be met.
  • the present application proposes a battery 10, which includes a battery array 20 formed by M*N battery cells 21 arranged in M rows and N columns, M ⁇ 1, N ⁇ 1, M and N are both positive integers.
  • Each column of battery cells 21 in the battery array 20 is arranged along a first direction, the first direction is the length direction of the battery 10 or the walking direction of the electrical device 1 having the battery 10, and each row of battery cells 21 in the battery array 20 is arranged along a second direction, and the second direction intersects with the first direction and the vertical plane.
  • the maximum dimension of the battery cell 21 along the second direction is D
  • the maximum dimension of the battery array 20 along the second direction is D1, wherein N*D/D1 ⁇ [0.70, 0.99].
  • all the battery cells 21 form a battery array 20, wherein each column of the battery array 20 is arranged along a first direction, and each row of the battery array 20 is arranged along a second direction. In the second direction, the maximum size of the battery cell 21 is D, and the maximum size of the battery array 20 is D1.
  • the value of N*D/D1 is set in the interval of [0.70, 0.99], so that the battery array 20 formed by all the battery cells 21 has a more compact structure.
  • the value of N*D/D1 is further set in the range of [0.83, 0.99].
  • two adjacent battery cells 21 are bonded and fixed by adhesive.
  • a partition component may be provided between two adjacent battery cells 21 in each column, or between two adjacent battery cells 21 in each row, wherein the partition component is bonded and fixed to the battery cells 21 .
  • the partition component includes at least one of a heat conductor 40 , a buffer, a partition plate, and a partition beam.
  • the partition component includes the heat conductor 40 .
  • the partition member includes a heat conductive member 40, which is disposed in the box 30 of the battery 10 and is disposed along a first direction.
  • the heat conductive member 40 is thermally connected to the battery cell 21, wherein the surface of the battery cell 21 thermally connected to the heat conductive member 40 may be the surface with the largest area of the battery cell 21.
  • a heat exchange medium channel is disposed in the heat conductive member 40, and the heat exchange medium flows in the heat exchange medium flow channel and conducts heat transfer between the heat conductive member 40 and the battery cell 21.
  • the other components of the partition are bonded to the battery cell 21 via a first bonding layer, the heat conductive member 40 is bonded to the battery cell 21 via a second bonding layer, and the ratio of the thermal conductivity of the first bonding layer to the thermal conductivity of the second bonding layer is in the range of 0.1-1.
  • the battery cell 21 includes a plurality of surfaces, wherein the plurality of surfaces include a first surface 216 , a second surface 217 , and a third surface 218 .
  • the first surface 216 is the surface with the largest area and there are two of them
  • the two first surfaces 216 are arranged opposite to each other along the second direction.
  • the second surfaces 217 of two adjacent battery cells 21 in each column are arranged opposite to each other
  • the first surfaces 216 of two adjacent battery cells 21 in each row are arranged opposite to each other; when the first surface 216 is the surface with the largest area and there are two of them, the two first surfaces 216 are arranged opposite to each other along the first direction.
  • the first surfaces 216 of two adjacent battery cells 21 in each column are arranged opposite to each other, and the second surfaces 217 of two adjacent battery cells 21 in each row are arranged opposite to each other; when the first surface 216 is the surface with the largest area and there is one of them, the first surface 216 can constitute the outer peripheral surface of the battery cell 21.
  • the adjacent two battery cells 21 in each column are arranged along the first direction, and the adjacent two battery cells 21 in each row are arranged in a staggered manner, or the adjacent two battery cells 21 in each row are arranged along the first direction, and the adjacent two battery cells 21 in each column are arranged in a staggered manner.
  • the maximum size of the battery cell 21 along the first direction is L
  • the maximum size of the battery cell 21 along the second direction is D
  • L/D ranges from 1 to 30
  • the maximum size of the battery cell 21 along the third direction is H
  • L/H ranges from 0.5 to 6.
  • the battery cell 21 includes an electrode terminal 214, which includes two electrode terminals 214 with opposite polarities.
  • the two electrode terminals 214 with opposite polarities can be arranged on the same surface of the battery cell 21, or on different surfaces of the battery cell 21, or one can be arranged on the surface of the battery cell 21 and the other can be formed by the shell 211 of the battery cell 10.
  • a pressure relief mechanism 215 is provided on the battery cell 21 , and the pressure relief mechanism 215 can be provided on any one of the first surface 216 , the second surface 217 and the third surface 218 .
  • the pressure relief mechanism 215 and the electrode terminal 214 are both provided on the first surface 216 .
  • the projections of the heat conducting member 40 and the main body 2131 at least partially overlap and have an overlapping area.
  • the size of the main body 2131 is L1
  • the size of the heat conducting member 40 is L2, wherein 0.5 ⁇ L2/L1 ⁇ 1.5.
  • the size of the overlapping area is L3, 0.5 ⁇ L3/L1 ⁇ 1.
  • the battery 10 further includes a current collecting member 50 , which is disposed at an end of the heat conducting member 40 in the first direction and communicates with the heat exchange medium channel of the heat conducting member 40 .

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  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本申请属于电池技术领域，具体公开了一种电池及用电设备，该电池包括由M*N个电池单体呈M行N列排布形成的电池阵列，M≥1，N≥1，M和N均为正整数。电池阵列中每列电池单体沿第一方向布置，第一方向为电池的长度方向或具有电池的用电设备的行走方向，电池阵列中每行电池单体沿第二方向布置，第二方向与第一方向和竖直面均相交。电池单体沿第二方向的最大尺寸为D，电池阵列沿第二方向的最大尺寸为D1，其中，N*D/D1∈[0.70，0.99]。将N*D/D1的取值设置在[0.70，0.99]的区间内，从而使得全部电池单体所形成的电池阵列结构更加紧凑，当电池阵列设置在电池内时，能够充分利用电池的内部空间，能够提高电池的空间利用率，有利于提高电池的能量密度。

Description

电池及用电设备 技术领域
本申请涉及电池技术领域，尤其涉及一种电池及用电设备。
背景技术
随着新能源的发展，越来越多的领域采用新能源作为动力。由于具有能量密度高、可循环充电、安全环保等优点，动力电池被广泛应用于新能源汽车、消费电子、储能系统等领域中。
动力电池通常包括箱体和多个电池单体，多个电池单体排列设置在箱体内，现有电池单体排布方式导致了电池的空间利用率不高，不利于提高电池的能量密度。
发明内容
鉴于上述问题，本申请提供一种电池及用电设备，解决了现有电池的空间利用率不高的问题。
本申请的第一方面提出了一种电池，包括由M*N个电池单体呈M行N列排布形成的电池阵列，M≥1，N≥1，M和N均为正整数；
所述电池阵列中每列电池单体沿第一方向布置，所述第一方向为所述电池的长度方向或具有所述电池的用电设备的行走方向，所述电池阵列中每行电池单体沿第二方向布置，所述第二方向与所述第一方向和竖直面均相交；
所述电池单体沿所述第二方向的最大尺寸为D，所述电池阵列沿所述第二方向的最大尺寸为D1，其中，N*D/D1∈[0.70，0.99]。
根据本申请的电池，全部电池单体形成电池阵列，其中，电池阵列的每列沿第一方向设置，电池阵列的行沿第二方向设置，在第二方向上，电池单体的最大尺寸为D，电池阵列的最大尺寸为D1，将N*D/D1的取值设置在[0.70，0.99]的区间内，从而使得全部电池单体所形成的电池阵列结构更加紧凑，当电池阵列设置在电池内时，能够充分利用电池的内部空间，能够提高电池的空间利用率，有利于提高电池的能量密度。
在本申请的一些实施例中，N*D/D1∈[0.83，0.99]。在本实施例中，通过进一步将N*D/D1的取值设置在[0.83，0.99]的区间内，使得电池阵列能够充分发挥性能的基础上，结构更加紧凑，以利于提高电池的空间利用率及能量密度。
在本申请的一些实施例中，所述电池的长度方向与所述用电设备的行走方向平行或者相交。在本实施例中，通过将电池的长度方向与用电设备的行走方向设置成平行或者相交，从而提高了电池在用电设备中布置的便捷性。
在本申请的一些实施例中，在所述电池阵列中，M≥2，在每行所述电池单体中，相邻两个所述电池单体之间设置有粘接胶；
和/或在所述电池阵列中，N≥2，在每列所述电池单体中，相邻两个所述电池单体之间设置有粘接胶。
在本实施例中，电池阵列呈M行N列设置，当每列上的电池单体的数量大于或者等于两个时，利用粘接胶将每列中相邻两个电池单体连接固定，当每行上的电池单体的数量大于或者等于两个时，利用粘接胶将每行中相邻两个电池单体连接固定，通过粘接胶将相邻两个电池单体连接固定的方式，结构简单，便于组装过程中的实施，从而能够加快生产节拍，使得生产的效率能够得到提高。
在本申请的一些实施例中，相邻两个所述电池单体之间间隔设置。在本实施例中，将相邻两个电池单体之间间隔设置，当电池单体出现形变时，能够减少对相邻电池单体的影响，从而提高了电池在使用过程中的安全性。
在本申请的一些实施例中，在所述电池阵列中，M≥2，在每行所述电池单体中，相邻两个所述电池单体之间设置有分隔部件；
或者在所述电池阵列中，N≥2，在每列所述电池单体中，相邻两个所述电池单体之间设置有分隔部件。
在本实施例中，在每列相邻两个电池单体之间设置分隔部件，能够使得相邻两个电池单体之间间隔设置，从而能够降低相邻两个电池单体之间的不良影响，使得电池能够充分发挥性能，也提高了电池使用过程中的安全性。另外，在每行相邻两个电池单体之间设置分隔部件，也使得相邻两个电池单体之间间隔设置，同样能够降低相邻两个电池单体之间的不良影响，使得电池能够充分发挥性能，也提高了电池使用过程中的安全性。
在本申请的一些实施例中，所述分隔部件与所述电池单体粘接固定。在本实施例中，利用粘接固定的方式将分隔部件与电池单体进行连接，粘接固定的方式结构简单，便于组装过程中的实施，使得生产节拍能够得到加快，从而提高了生产的效率，降低了制造的成本。
在本申请的一些实施例中，所述分隔部件包括导热件、缓冲件、分隔板和分隔梁中的至少一种。在本实施例中，将分隔部件设置成导热件、缓冲件、分隔板和分隔梁中的至少一种，在将相邻两个电池单体间隔开的基础上，能够根据不同的需求设置相应的分隔部件，以满足电池阵列满足相应的使用需求。
在本申请的一些实施例中，所述电池单体包括多个表面，所述多个表面包括第一表面和第二表面，所述第一表面为面积最大的表面，并且所述第二表面的面积小于所述第一表面的面积，所述第一表面沿所述第一方向设置并与水平面相交，所述第二表面沿所述第二方向设置并与水平面相交，沿所述第一方向，每列所述电池单体中相邻的两个所述电池单体的所述第二表面相对设置，沿所述第二方向，每行所述电池单体中相邻的两个所述电池单体的所述第一表面相对设置。
在本实施例中，第一表面为电池单体的面积最大的面，第二表面的面积小于第一表面的面积，通过将第一表面和第二表面的设置方向进行设定，从而使得电池阵列能够满足不同电池的需求，以提高电池的适用性。
在本申请的一些实施例中，所述电池单体包括多个表面，所述多个表面包括第一表面和第二表面，所述第一表面为 面积最大的表面，并且所述第二表面的面积小于所述第一表面的面积，所述第二表面沿所述第一方向设置并与水平面相交，所述第一表面沿所述第二方向设置并与水平面相交，沿所述第一方向，每列所述电池单体中相邻的两个所述电池单体的所述第一表面相对设置，沿所述第二方向，每行所述电池单体中相邻的两个所述电池单体的所述第二表面相对设置。
在本实施例中，第一表面为电池单体的面积最大的面，第二表面的面积小于第一表面的面积，通过将第一表面和第二表面的设置方向进行设定，从而使得电池阵列能够满足不同电池的需求，以提高电池的适用性。
在本申请的一些实施例中，所述电池单体包括多个表面，所述多个表面包括面积最大的第一表面，沿所述第一方向，每列所述电池单体中相邻的两个所述电池单体的所述第一表面相对设置，沿所述第二方向，每行所述电池单体中相邻的两个所述电池单体的所述第一表面错位设置。在本实施例中，第一表面为电池单体的面积最大的面，通过每行相邻两个电池单体的第一表面进行设置，以及每列相邻两个电池单体的第一表面进行设置，从而使得电池阵列能够满足不同电池的需求，以提高电池的适用性。
在本申请的一些实施例中，所述电池单体包括多个表面，所述多个表面包括面积最大的第一表面，沿所述第一方向，每列所述电池单体中相邻的两个所述电池单体的所述第一表面错位设置，沿所述第二方向，每行所述电池单体中相邻的两个所述电池单体的所述第一表面相对设置。在本实施例中，第一表面为电池单体的面积最大的面，通过每行相邻两个电池单体的第一表面进行设置，以及每列相邻两个电池单体的第一表面进行设置，从而使得电池阵列能够满足不同电池的需求，以提高电池的适用性。
在本申请的一些实施例中，所述分隔部件包括导热件，所述导热件沿所述第一方向设置且与所述第二方向相交，每列所述电池单体的至少一侧设有所述导热件，并且每列所述电池单体分别与一个所述导热件导热连接。本实施例中，设置导热件，并且对于导热件的设置方式进行设置，使得每列电池单体能够与导热件导热连接，以实现对每列电池单体进行有效散热，从而将电池单体维持在相对安全的工作温度区间内，进而提高了电池使用的安全性。
在本申请的一些实施例中，所述导热件内设有容纳换热介质的通道。本实施例中，电池单体通过导热件与通道内的换热介质进行热传递，换热介质在通道内流动，该种换热方式的换热效率高且结构简单。
在本申请的一些实施例中，所述电池还包括集流件，所述集流件与所述导热件流体连通；
其中，所述导热件位于所述第一方向的一端设有所述集流件，或，所述导热件位于所述第一方向的两端分别设有所述集流件。
本实施例中，设置集流件，能够实现对导热件内的换热介质进行汇集，减少了部件的数量，从而提高了箱体内的空间利用率。另外，当电池受到第二方向上挤压或撞击时，集流件的设置位置能够避让开挤压或撞击，减少集流件被损坏的可能性，以使换热介质能够充分对电池进行散热，进一步降低了电池因温度过高导致的安全隐患。
在本申请的一些实施例中，所述集流件为两个，两个所述集流件设于所述导热件的位于所述第一方向的一端，两个所述集流件沿第三方向排布，所述第一方向、所述第二方向和所述第三方向两两相交。本实施例中，设置两个集流件，从而提高了对换热介质的集流性能，使得换热介质能够具有良好的流速，进一步提高了换热介质对电池单体的换热能力。另外，将两个集流件共同设于第一方向的一端，且沿第三方向排布，可有效地减小集流件沿第一方向在电池内的占用空间，从而便于在电池内设置其他结构。
在本申请的一些实施例中，所述分隔部件包括导热件，所述导热件沿所述第二方向设置且与所述第一方向相交，每行所述电池单体的至少一侧设有所述导热件，并且每行所述电池单体分别与一个所述导热件导热连接。本实施例中，设置导热件，并且对于导热件的设置方式进行设置，使得每行电池单体能够与导热件导热连接，以实现对每行电池单体进行有效散热，从而将电池单体维持在相对安全的工作温度区间内，进而提高了电池使用的安全性。
在本申请的一些实施例中，所述电池单体包括电极组件，所述电极组件包括主体部和凸出于所述主体部的极耳，所述极耳与所述电极端子电连接；沿所述第二方向，所述导热件和所述主体部的投影至少部分重合且具有重合区域。本实施例中，通过将导热件和主体部沿第二方向至少部分重合设置，能够通过导热件有效地对主体部进行换热，从而提高了对电池单体的换热效果。
在本申请的一些实施例中，沿所述第三方向，所述主体部的尺寸为L1，所述导热件的尺寸为L2，所述第一方向、所述第二方向和所述第三方向两两相交，其中，0.5≤L2/L1≤1.5。
本实施例中，将L2/L1范围值设定在区间[0.5，1.5]内，能够减少导热件在第三方向上所占用的空间，使得电池的空间利用率得到了进一步提升。
在本申请的一些实施例中，沿所述第三方向，所述重合区域的尺寸为L3，0.5≤L3/L1≤1。
本实施例中，通过对重合区域在第三方向尺寸的设定，从而能够使得导热件与主体部之间的换热面积能够合理设定，能够极大地增强导热件对主体部的换热效果。
在本申请的一些实施例中，所述电池单体包括电极端子，所述电极端子设于所述多个表面中至少一个上。本实施例中，设置电极端子，通过电池端子实现对电池单体的电引出，从而保证了电池单体能够有效实现充放电操作。
在本申请的一些实施例中，所述多个表面还包括第三表面，所述第一表面、所述第二表面和所述第三表面两两相交，所述电极端子设于所述第三表面上。本实施例中，通过对电极端子的位置进行设定，从而使得电池单体的结构能够满足不同电池的安装需求，进而提高了电池单体的适用范围。
在本申请的一些实施例中，所述第三表面的数量为两个，两个所述第三表面相对设置且分别与所述第一表面相交，所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子设在一个所述第三表面上，或者所述极性相反的两个电极端子分别设在两个所述第三表面上。本实施例中，通过对电极端子的位置进行设定，从而使得电池单体的结构能够满足不同电池的安装需求，进而提高了电池单体的适用范围。
在本申请的一些实施例中，所述电池单体包括极性相反的两个电极端子，所述极性相反的两个电极端子设在所述第三表面上，或者所述极性相反的两个电极端子中的一个设于所述第三表面上，所述电池单体的壳体构成所述极性相反的两个电极端子中的另一个。本实施例中，通过对电极端子的位置进行设定，从而使得电池单体的结构能够满足不同电池 的安装需求，进而提高了电池单体的适用范围。
在本申请的一些实施例中，所述电池单体包括所述第一表面和与所述第一表面相对设置的第四表面，所述第一表面和所述第四表面沿第一方向或第二方向相对设置；所述第四表面的边缘设有凹部；所述第一表面用于设置所述电极端子；所述电极端子在所述第二方向上凸出设置于所述第一表面，并且与所述凹部对应。本实施例中，通过对电极端子的位置进行设定，从而使得电池单体的结构能够满足不同电池的安装需求，进而提高了电池单体的适用范围。
在本申请的一些实施例中，每列所述电池单体包括至少两个所述电池单体，所述至少两个电池单体沿所述第一方向排列。本实施例中，至少两个电池单体沿第一方向排列设置，便于电池单体在箱体内部的布局。
在本申请的一些实施例中，沿所述第一方向，所述电池单体的最大尺寸为L，其中，L/D范围值为1～30。本实施例中，通过对电池单体在第一方向和第二方向上尺寸进行设定，能够最大限度地提升电池单体的电量。
在本申请的一些实施例中，沿所述第一方向，所述电池单体的最大尺寸为L；沿第三方向，所述电池单体的最大尺寸为H，L/H范围值为0.5～6；所述第一方向、所述第二方向和所述第三方向两两相交。本实施例中，电池单体的按照上述尺寸比例设置，能够最大限度地提升电池单体的电量。
在本申请的一些实施例中，所述电池还包括箱体，所述箱体包括两个内壁，所述两个内壁在所述第二方向上相对设置，所述两个内壁之间的最大距离为D2，其中，N*D＝n*D2，其中，n∈[0.7，0.99]。本实施例中，N*D与D2之间的比例进行设定，从而能够使得电池阵列能够更加适配于电池的箱体，并且能够在满足电池阵列安装的基础上，有效提高电池的空间利用率，使得电池的能量密度能够被有效被提高。
在本申请的一些实施例中，所述电池单体通过第一粘接层与所述箱体固定连接，所述电池还包括导热件，所述导热件通过第二粘接层与所述电池单体导热连接，所述第一粘接层的导热系数小于或等于所述第二粘接层的导热系数。本实施例中，由于第一粘接层用于电池单体与箱体的连接固定，而第二粘接层用于导热连接电池单体和导热件，故将第一粘接层的导热系数小于或等于第二粘接层的导热系数设置，以保证更加有效地通过导热件对电池单体进行散热。
在本申请的一些实施例中，所述第一粘接层的导热系数与所述第二粘接层的导热系数的比值范围为0.1～1。本实施例中，上述比值范围的设置，均能够有效地通过导热件对电池单体进行散热。
在本申请的一些实施例中，所述电池单体包括电极组件；所述电极组件为卷绕式结构且为扁平状，所述电极组件的外表面包括两个扁平面，两个所述扁平面沿所述第二方向相互面对；
或，所述电极组件为叠片式结构，所述电极组件的第一极片、隔膜和第二极片沿所述第二方向层叠。
本实施例中，通过将电极组件设置成卷绕式结构且为扁平状，以及电极组件的外表面包括两个扁平面，两个所述扁平面沿第二方向相互面对，或者将电极组件为叠片式结构，从而减少了电极组件在第一方向上所占用的空间，以便于电池在第一方向上进行其他部件的布局和安装。
本申请的第二方面提出了一种用电设备，包括如上所述的电池，所述电池用于提供电能驱动所述用电设备行走。
在本申请的一些实施例中，在所述电池的长度方向与所述用电设备的行走方向不同的情况下，所述第一方向为所述用电设备的行走方向。
本实施例中，将第一方向设定为用电设备的行走方向，第三方向分别与第一方向和水平方向均相交，位于电池的箱体内部的电池单体具有第一表面和第二表面，第一表面设置电极端子，第二表面与箱体相连，第一方向的设定，便于电池在用电设备上的安装和布局，以及通过调整电池单体在箱体内部的排列方式，来满足不同用电设备的使用需求。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
图1示意性地示出了根据本申请一种实施方式的车辆的结构示意图；
图2示意性地示出了根据本申请一种实施方式的电池的分解结构示意图；
图3示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图4示意性地示出了根据本申请一种实施方式的电池单体的分解结构示意图；
图5示意性地示出了根据本申请一种实施方式的电池的分解结构示意图；
图6示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图7为图6中所示的电池组件中电池单体的结构示意图；
图8示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图9为图8中所示的电池组件中电池单体的结构示意图；
图10示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图11示意性地示出了根据本申请一种实施方式的电池组件的结构示意图
图12为图10以及图11中所示的电池组件中电池单体的结构示意图；
图13示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图14为图13中所示的电池组件中电池单体的结构示意图；
图15示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图16为图15中所示的电池组件中电池单体的结构示意图；
图17示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图18为图17中所示的电池组件中电池单体的结构示意图；
图19示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图20为图19中所示的电池组件中电池单体的结构示意图；
图21示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图22为图21中所示的电池组件中电池单体的结构示意图；
图23示意性地示出了根据本申请一种实施方式的电池组件的结构示意图；
图24为图23中所示的电池组件中电池单体的结构示意图；
图25示意性地示出了根据本申请一种实施方式的导热件的结构示意图；
图26示意性地示出了根据本申请一种实施方式的箱体的第二部分的结构示意图；
图27示意性地示出了根据本申请一种实施方式的电池的结构示意图(箱体的第一部分未示出)；
图28为图27所示结构中A部放大结构示意图；
图29为图27所示结构中B-B部的剖视图；
图30为图29所示结构中C部放大结构示意图；
图31为图27所示电池组件的结构示意图；
图32为图31所示电池组件的另一视角的结构示意图；
图33是本申请一实施方式提供的车辆上电池的分布结构示意图。
附图标记如下：
1：用电设备；
10：电池、11：控制器、12：马达；
20：电池阵列、21：电池单体、211：壳体、212：端盖、213：电极组件、2131：主体部、2132：极耳、214：电极端子、215：泄压机构、216：第一表面、217：第二表面、218：第三表面；
30：箱体、31：第一部分、32：第二部分；
40：导热件；
50：集流件；
60：第一粘接层；
70：第二粘接层。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
本申请人注意到，动力电池通常包括箱体和多个电池单体，全部电池单体排列设置在箱体内，现有电池单体排布方式导致了电池的空间利用率不高，不利于提高电池的能量密度，因此，如何解决解决现有电池的空间利用率不高的问题成为本领域技术人员亟需解决的技术问题。
为了解决解决现有电池的空间利用率不高的问题，本申请的发明人研究发现，将电池箱体内的电池单体形成电池阵列，其中，电池阵列包括由M*N个电池单体，M≥1，N≥1，M和N均为正整数。电池阵列中每列电池单体沿第一方向布置，第一方向为电池的长度方向或具有电池的用电设备的行走方向，电池阵列中每行电池单体沿第二方向布置，第二方向与第一方向和竖直面均相交。电池单体沿第二方向的最大尺寸为D，电池阵列沿第二方向的最大尺寸为D1，其中，N*D/D1∈[0.70，0.99]，从而使得全部电池单体所形成的电池阵列结构更加紧凑，当电池阵列设置在电池内时，能够充分利用 电池的内部空间，能够提高电池的空间利用率，有利于提高电池的能量密度。
本申请实施例涉及的电池单体可以但不限用于车辆、船舶或飞行器等用电装置中。可以使用具备本申请涉及的电池单体、电池等组成该用电装置的电源系统。
本申请实施例中利用电池作为电源的用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
应理解，本申请实施例描述的技术方案不仅仅局限适用于上述所描述的电池和用电设备，还可以适用于所有包括箱体的电池以及使用电池的用电设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆的结构示意图。车辆可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆的内部设置有电池10，电池10可以设置在车辆的底部或头部或尾部。电池10可以用于车辆的供电，例如，电池10可以作为车辆的操作电源。车辆还可以包括控制器11和马达12，控制器11用来控制电池10为马达12供电，例如，用于车辆的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池10不仅可以作为车辆的操作电源，还可以作为车辆0的驱动电源，代替或部分地代替燃油或天然气为车辆提供驱动动力。
为了满足不同的使用电力需求，电池10可以包括多个电池单体，电池单体是指组成电池组件或电池包的最小单元。多个电池单体可经由电极端子而被串联和/或并联在一起以应用于各种应用场合。本申请中所提到的电池10包括电池组件或电池包。其中，多个电池单体之间可以串联或并联或混联，混联是指串联和并联的混合。电池10也可以称为电池包。本申请的实施例中多个电池单体可以直接组成电池包，也可以先组成电池组件，电池组件再组成电池包。
图2示出了本申请一实施例的电池10的结构示意图。图2中，电池10可以包括多个电池组件20和箱体30，多个电池组件20容纳于箱体30内部。箱体30用于容纳电池单体21或电池组件20，以避免液体或其他异物影响电池单体的充电或放电。箱体30可以是单独的长方体或者圆柱体或球体等简单立体结构，也可以是由长方体或者圆柱体或球体等简单立体结构组合而成的复杂立体结构，本申请实施例对此并不限定。箱体30的材质可以是如铝合金、铁合金等合金材料，也可以是如聚碳酸酯、聚异氰脲酸酯泡沫塑料等高分子材料，或者是如玻璃纤维加环氧树脂的复合材料，本申请实施例对此也并不限定。
在一些实施例中，如图2所示，箱体30可以包括第一部分31和第二部分32，第一部分31与第二部分32相互盖合，第一部分31和第二部分32共同限定出用于容纳电池单体21的空间。第二部分32可以为一端开口的空心结构，第一部分31可以为板状结构，第一部分31盖合于第二部分32的开口侧，以使第一部分31与第二部分32共同限定出容纳电池单体21的空间；第一部分31和第二部分32也可以是均为一侧开口的空心结构，第一部分31的开口侧盖合于第二部分32的开口侧。
图3示出了本申请一实施例的电池组件20的结构示意图。图3中，电池组件20可以包括多个电池单体21，多个电池单体21可以先串联或并联或混联组成电池组件20，多个电池组件20再串联或并联或混联组成电池。本申请中，电池单体21可以包括锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体21可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体21一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
图4示出了本申请一实施例的电池单体21的结构示意图。电池单体21包括壳体211、端盖212和电极组件213。
端盖212是指盖合于壳体211的开口以将电池单体21的内部环境隔绝于外部环境的部件。不限地，端盖212的形状可以与壳体211的形状相适应以配合壳体211。可选地，端盖212可以由具有一定硬度和强度的材质(如铝合金)制成，这样，端盖212在受挤压碰撞时就不易发生形变，使电池单体21能够具备更高的结构强度，安全性能也可以有所提高。端盖212的材质也可以是多种的，比如，铜、铁、铝、不锈钢、铝合金、塑胶等，本申请实施例对此不作特殊限制。在一些实施例中，在端盖212的内侧还可以设置有绝缘件，绝缘件可以用于隔离壳体211内的电连接部件与端盖212，以降低短路的风险。示例性的，绝缘件可以是塑料、橡胶等。
壳体211是用于配合端盖212以形成电池单体21的内部环境的组件，其中，形成的内部环境可以用于容纳电极组件213、电解液以及其他部件。壳体211和端盖212可以是独立的部件，可以于壳体211上设置开口，通过在开口使端盖212盖合开口以形成电池单体21的内部环境。不限地，也可以使端盖212和壳体211一体化，具体地，端盖212和壳体211可以在其他部件入壳前先形成一个共同的连接面，当需要封装壳体211的内部时，再使端盖212盖合壳体211。壳体211可以是多种形状和多种尺寸的，例如长方体形、圆柱体形、六棱柱形等。具体地，壳体211的形状可以根据电芯组件的具体形状和尺寸大小来确定。壳体211的材质可以是多种，比如，铜、铁、铝、不锈钢、铝合金、塑胶等，本申请实施例对此不作特殊限制。
在本申请的一些实施例中，如图5至图32所示，本申请提出了一种电池10，包括由M*N个电池单体21呈M行N列排布形成的电池阵列20，M≥1，N≥1，M和N均为正整数。电池阵列20中每列电池单体21沿第一方向布置，第一方向为电池10的长度方向或具有电池10的用电设备1的行走方向，电池阵列20中每行电池单体21沿第二方向布置，第二方向与第一方向和竖直面均相交。如图31和图32所示，电池单体21沿第二方向的最大尺寸为D，电池阵列20沿第二方向的最大尺寸为D1，其中，N*D/D1∈[0.70，0.99]。
在本申请中，电池阵列20最少可以为一行一列结构，也可以为两行一列，还可以为一行两列，还可以为两行两列。其中，如图31所示，本申请说明书附图中所示出的实施方式中，电池阵列20为多行(三行及三行以上)和多列(三列及三列以上)的结构。
另外，如图27所示，电池10为近似矩形结构，电池10具有长度方向、宽度方向和高度方向，第一方向为电池10的长度方向或者用电设备1的行走方向一致，其中，电池10的长度方向与行车方向可以相同也可以不同，第二方向与第一方向位于同一平面内且两个方向相交，此外，本申请中还具有第三方向，第三方向、第二方向和第一方向两两相交。
具体地，如图31所示，全部电池单体21形成电池阵列20，其中，电池阵列20的每列沿第一方向设置，电池阵列20的行沿第二方向设置，在第二方向上，电池单体21的最大尺寸为D，电池阵列20的最大尺寸为D1，将N*D/D1的取值设置在[0.70，0.99]的区间内，从而使得全部电池单体21所形成的电池阵列20结构更加紧凑，当电池阵列20设置在电池10内时，能够充分利用电池10的内部空间，能够提高电池10的空间利用率，有利于提高电池10的能量密度。
需要理解的是，在本申请中，电池阵列20也可以称之为电池组件。
需要指出的是，N*D/D1的取值越趋近于1，电池10的空间利用率越高，此时电池10的能量密度越大，但是，在电池阵列20的相邻两个电池单体21之间由于制造公差或者需要间隔设置等原因，无法使得N*D/D1的取值为1，当N*D/D1的取值小于0.70时，电池的空间利用率以及能量密度会被降低。因此，根据电池阵列20的实际工况，将N*D/D1的取值设置在[0.70，0.99]的区间内，在满足电池10使用的前提下，使得电池阵列20的结构更加紧凑，以提高电池10的空间利用率以及电池10的能量密度。
另外，在本实施例中，N*D/D1的取值可以为0.70、0.75、0.80、0.85、0.90、0.95……0.99。
在本申请的一些实施例中，如图31所示，在第二方向上，电池单体21的最大尺寸为D，电池阵列20的最大尺寸为D1，其中，N*D/D1∈[0.83，0.99]。
具体地，通过进一步将N*D/D1的取值设置在[0.83，0.99]的区间内，使得电池阵列20能够充分发挥性能的基础上，进一步提高了电池阵列20的结构紧凑性，进一步有利于提高电池10的空间利用率及能量密度。
需要指出的是，在本实施例中，N*D/D1的取值可以为0.83、0.85、0.87、0.89、0.90、0.92……0.99。
以下通过具体实验数据进行具体说明：
在实验过程中，以电池单体21的长度方向与第一方向一致，电池单体21的宽度方向与第二方向一致，电池单体21的高度方向与第三方向一致为例，其中，D为电池单体21的宽度，D1为在电池单体21的宽度方向上，电池阵列20的宽度，具体参见表1：
表1
Figure PCTCN2022125506-appb-000001
通过上述实施例可知，当N*D/D1的取值趋向于1时，电池10的能量密度逐渐增大，因此，通过合理控制N*D/D1的取值，在保证了电池10能够充分发挥性能的同时，能够有效保证电池10具有较高的能量密度。
在本申请的一些实施例中，电池10的长度方向与用电设备1的行走方向平行或者相交。
在本申请中，用电设备1的行走方向是指用电设备1能够产生相对位移的方向，该相对位移可以是前进或者后退。电池10的长度方向与用电设备1的行走方向平行时，电池10的长度方向沿用电设备1的行走方向设置；当电池10的长度方向与用电设备1的行走方向相交时，电池10的长度方向与用电设备1的行走方向呈角度设置，该角度不等于0。
具体地，通过对电池10的长度方向以及用电设备1的行车方向之间的关系进行设定，使得电池10能够根据用电设备1的需求安装在用电设备1上，从而提高了电池10在用电设备1中布置的便捷性。
在本申请的一些实施例中，在电池阵列20中，M≥2，在每行电池单体21中，相邻两个电池单体21之间设置有粘接胶。
具体地，电池阵列20呈M行N列设置，当每行上的电池单体21的数量大于或者等于两个时，利用粘接胶将每行中相邻两个电池单体21连接固定，通过粘接胶将相邻两个电池单体21连接固定的方式，结构简单，便于组装过程中的实施，从而能够加快生产节拍，使得生产的效率能够得到提高。
需要指出的是，用于连接每行中相邻两个电池单体21的粘接胶可以为膏状物质，也可以为双面胶。
另外，在本申请中电池阵列20中的行可以沿第一方向设置，也可以沿第二方向设置。
在本申请的一些实施例中，在电池阵列20中，N≥2，在每列电池单体21中，相邻两个电池单体21之间设置有粘接胶。
需要指出的是，用于连接每列中相邻两个电池单体21的粘接胶可以为膏状物质，也可以为双面胶。
另外，在本申请中电池阵列20中的列可以沿第一方向设置，也可以沿第二方向设置。
具体地，电池阵列20呈M行N列设置，当每列上的电池单体21的数量大于或者等于两个时，利用粘接胶将每列中相邻两个电池单体21连接固定，通过粘接胶将相邻两个电池单体21连接固定的方式，结构简单，便于组装过程中的实施，从而能够加快生产节拍，使得生产的效率能够得到提高。
在本申请的一些实施例中，相邻两个电池单体21之间间隔设置。
具体地，在本申请中，电池阵列20包括M行和N列，其中，当M行和N列均大于1时，每行中相邻两个电池单体21之间间隔设置，同时每列中相邻两个电池单体21之间间隔设置，通过将相邻两个电池单体21之间间隔设置，能够避免相邻两个电池单体21直接接触。当电池单体21出现形变时，能够减少对相邻电池单体21的影响，从而提高了电池 10在使用过程中的安全性。
需要理解的是，电池单体21在使用过程中，会发生膨胀，若相邻两个电池单体21相抵接，其中一个电池单体21发生膨胀时，会导致对另外的电池单体21形成挤压，从而影响另一个电池单体21的性能的发挥。
需要指出的是，相邻两个电池单体21之间所间隔的距离在满足需求的前提下，间隔的距离越小越有利于提高电池10的空间利用率及能量密度。
在本申请的一些实施例中，如图29至图30所示，在电池阵列20中，M≥2，在每行电池单体21中，相邻两个电池单体21之间设置有分隔部件。
具体地，在每行相邻两个电池单体21之间设置分隔部件，能够使得相邻两个电池单体21之间间隔设置，从而能够降低相邻两个电池单体21之间的不良影响，使得电池10能够充分发挥性能，也提高了电池10使用过程中的安全性。
需要理解的是，在每行相邻两个电池单体21之间设置分隔部件，能够提高电池阵列20的整体强度，从而能够降低振动等外界因素对电池阵列20产生的不良影响，使得电池10的适应性得到有效地增强。
在本申请的一些实施例中，在电池阵列20中，N≥2，在每列电池单体21中，相邻两个电池单体21之间设置有分隔部件。
具体地，在每列相邻两个电池单体21之间设置分隔部件，能够使得相邻两个电池单体21之间间隔设置，从而能够降低相邻两个电池单体21之间的不良影响，使得电池10能够充分发挥性能，也提高了电池10使用过程中的安全性。
需要理解的是，在每列相邻两个电池单体21之间设置分隔部件，能够提高电池阵列20的整体强度，能够进一步降低振动等外界因素对电池阵列20产生的不良影响，进一步使得电池10的适应性得到有效地增强。
在本申请的一些实施例中，分隔部件与电池单体21粘接固定。
具体地，利用粘接固定的方式将分隔部件与电池单体21进行连接，粘接固定的方式结构简单，便于组装过程中的实施，使得生产节拍能够得到加快，从而提高了生产的效率，降低了制造的成本。
在本申请的一些实施例中，分隔部件包括导热件40、缓冲件、分隔板和分隔梁中的至少一种。
具体地，将分隔部件设置成导热件40、缓冲件、分隔板和分隔梁中的至少一种，在将相邻两个电池单体21间隔开的基础上，能够根据不同的需求设置相应的分隔部件，以满足电池阵列20满足相应的使用需求。
在本申请的一些实施例中，分隔部件为缓冲件，缓冲件设置在相邻两个电池单体21之间，利用缓冲件能够吸收相邻两个电池单体21制造过程中所产生的公差，以保证了电池单体21的有效安装，另外，缓冲件能够为相邻两个电池单体21之间提供缓冲，降低相邻两个电池单体21彼此产生挤压而毁坏的情况。
在本申请的一些实施例中，分隔部件为分隔板，分隔板设置在相邻两个电池单体21之间，利用分隔板将相邻两个电池单体21分开，以防止相邻两个电池单体21彼此产生挤压而毁坏的情况。
在本申请的一些实施例中，分隔部件为分隔梁，分隔梁设置在相邻两个电池单体21之间，利用分隔梁将相邻两个电池单体21分开，以防止相邻两个电池单体21彼此产生挤压而毁坏的情况。
在本申请的一些实施例中，如图6和图7所示，电池单体21包括多个表面，多个表面包括第一表面216和第二表面217，第一表面216为面积最大的表面，并且第二表面217的面积小于第一表面216的面积，第一表面216沿第一方向设置并与水平面相交，第二表面217沿第二方向设置并与水平面相交，沿第一方向，每列电池单体21中相邻的两个电池单体21的第二表面217相对设置，沿第二方向，每行电池单体21中相邻的两个电池单体21的第一表面216相对设置。
具体地，第一表面216为电池单体21的面积最大的面，第一表面216沿第一方向设置且与水平面相交，可以在第一表面216的一侧设置导热件40，利用导热件40与第一表面216的导热连接，以增大导热件40与电池单体21的接触面积，进而提高电池单体21的散热效率。另外，将第一表面216为电池单体21的面积最大的面，第一表面216沿第一方向设置且与水平面相交，可以在箱体30与第一表面216相对应的一侧设置相应的加强结构(加强梁或者加强筋等)以提高对电池单体21的防护性能。
第一表面216为电池单体21的面积最大的面，第二表面217的面积小于第一表面216的面积，通过将第一表面216和第二表面217的设置方向进行设定，从而使得电池阵列20能够满足不同电池10的需求，以提高电池10的适用性。
需要指出的是，基于第一表面216和第二表面217的结构，两者可结合电池单体21的其它表面构成多种形式的电池单体21，例如方壳电池单体、刀片电池单体以及one-stop电池单体等。
在本申请的一些实施例中，如图8和图9所示，电池单体21包括多个表面，多个表面包括第一表面216和第二表面217，第一表面216为面积最大的表面，并且第二表面217的面积小于第一表面216的面积，第二表面217沿第一方向设置并与水平面相交，第一表面216沿第二方向设置并与水平面相交，沿第一方向，每列电池单体21中相邻的两个电池单体21的第一表面216相对设置，沿第二方向，每行电池单体21中相邻的两个电池单体21的第二表面217相对设置。
具体地，第一表面216为电池单体21的面积最大的面，第一表面216沿第二方向设置且与水平面相交，可以在第一表面216的一侧设置导热件40，利用导热件40与第一表面216的导热连接，以增大导热件40与电池单体21的接触面积，进而提高电池单体21的散热效率。另外，将第一表面216为电池单体21的面积最大的面，第一表面216沿第二方向设置且与水平面相交，可以在箱体30与第一表面216相对应的一侧设置相应的加强结构(加强梁或者加强筋等)以提高对电池单体21的防护性能。
第一表面216为电池单体21的面积最大的面，第二表面217的面积小于第一表面216的面积，通过将第一表面216和第二表面217的设置方向进行设定，从而使得电池阵列20能够满足不同电池10的需求，以提高电池10的适用性。
需要指出的是，基于第一表面216和第二表面217的结构，两者可结合电池单体21的其它表面构成多种形式的电池单体21，例如方壳电池单体、刀片电池单体以及one-stop电池单体等。
在本申请的一些实施例中，如图10和图12所示，电池单体21包括多个表面，多个表面包括面积最大的第一表面 216，沿第一方向，每列电池单体21中相邻的两个电池单体21的第一表面216相对设置，沿第二方向，每行电池单体21中相邻的两个电池单体21的第一表面216错位设置。
具体地，第一表面216为电池单体21的面积最大的面，通过每行相邻两个电池单体21的第一表面216进行设置，以及每列相邻两个电池单体21的第一表面216进行设置，从而使得电池阵列20能够满足不同电池10的需求，以提高电池10的适用性。
需要理解的是，在本实施例中，基于第一表面216的结构，结合电池单体21的其它表面构成的电池单体可为圆柱结构。
在本申请的一些实施例中，如图11和图12所示，电池单体21包括多个表面，多个表面包括面积最大的第一表面216，沿第一方向，每列电池单体21中相邻的两个电池单体21的第一表面216错位设置，沿第二方向，每行电池单体21中相邻的两个电池单体21的第一表面216相对设置。
具体地，第一表面216为电池单体21的面积最大的面，通过每行相邻两个电池单体21的第一表面216进行设置，以及每列相邻两个电池单体21的第一表面216进行设置，从而使得电池阵列20能够满足不同电池10的需求，以提高电池10的适用性。
需要理解的是，在本实施例中，基于第一表面216的结构，结合电池单体21的其它表面构成的电池单体为圆柱结构。
在本申请的一些实施例中，如图15、图29至图30所示，分隔部件包括导热件40，导热件40沿第一方向设置且与第二方向相交，每列电池单体21的至少一侧设有导热件40，并且每列电池单体21分别与一个导热件40导热连接。
具体地，设置导热件40，该导热件40设置在电池10的箱体30内，并且导热件40沿第一方向设置。每列电池单体21的至少一侧与导热件40导热连接，以实现对每列电池单体21进行有效散热，从而将电池单体21维持在相对安全的工作温度区间内，进而提高了电池10使用的安全性。
需要指出的是，电池单体21与导热件40导热连接的面可以为电池单体21面积最大的面，此时能够增加导热件40与电池单体21之间的接触面积，从而提高对电池单体21的散热性能。电池单体21与导热件40导热连接的面可以为非面积最大的面，以此来满足电池单体21内不同安装布局的要求。
另外，每列电池单体21可以一侧设置导热件40，也可以两侧均设置导热件40，以此来满足电池10的散热需求。
在本申请的一些实施例中，导热件40可以为电子制冷片，例如PTC等。
在本申请的一些实施例中，导热件40内设有容纳换热介质的通道。
具体地，导热件40连通有介质循环装置，并且通道内注有换热介质(例如水或者油等)，换热介质能够在通道内循环。电池单体21通过导热件40与通道内的换热介质进行热传递，换热介质在通道内流动，并将与电池单体21交换的热量带出，该种换热方式的换热效率高且结构简单。
在本申请的一些实施例中，如图27和图28所示，电池10还包括集流件50，集流件50与导热件40流体连通。其中，导热件40位于第一方向的一端设有集流件50，或者导热件40位于第一方向的两端分别设有集流件50。
具体地，集流件50设置在导热件40在第一方向上的一端或者两端上。设置集流件50，能够实现对导热件40内的换热介质进行汇集，减少了部件的数量，从而提高了箱体30内的空间利用率。
另外，当电池10受到第二方向上挤压或撞击时，集流件50的设置位置能够避让开挤压或撞击，减少集流件50被损坏的可能性，以使换热介质能够充分对电池10进行散热，进一步降低了电池10因温度过高导致的安全隐患。
在本申请的一些实施例中，集流件50为两个，两个集流件50设于导热件40的位于第一方向的一端，两个集流件50沿第三方向排布，第一方向、第二方向和第三方向两两相交。
具体地，设置两个集流件50，从而提高了对换热介质的集流性能，使得换热介质能够具有良好的流速，进一步提高了换热介质对电池单体21的换热能力。
另外，将两个集流件50共同设于第一方向的一端，且沿第三方向排布，可有效地减小集流件50沿第一方向在电池10内的占用空间，从而便于在电池10内设置其他结构。
在本申请的一些实施例中，分隔部件包括导热件40，导热件40沿第二方向设置且与第一方向相交，每行电池单体21的至少一侧设有导热件40，并且每行电池单体21分别与一个导热件40导热连接。
具体地，设置导热件40，该导热件40设置在电池10的箱体30内，并且导热件40沿第二方向设置。每列电池单体21的至少一侧与导热件40导热连接，以实现对每列电池单体21进行有效散热，从而将电池单体21维持在相对安全的工作温度区间内，进而提高了电池10使用的安全性。
需要指出的是，电池单体21与导热件40导热连接的面可以为电池单体21面积最大的面，此时能够增加导热件40与电池单体21之间的接触面积，从而提高对电池单体21的散热性能。电池单体21与导热件40导热连接的面可以为非面积最大的面，以此来满足电池单体21内不同安装布局的要求。
另外，每列电池单体21可以一侧设置导热件40，也可以两侧均设置导热件40，以此来满足电池10的散热需求。
需要指出的是，在本申请中，导热件40可以为电子制冷片(例如PTC等)，导热件40也可以设有容纳换热介质的通道的部件。
在本申请的一些实施例中，如图30所示，电池单体21包括电极组件213，电极组件213包括主体部2131和凸出于主体部2131的极耳2132，极耳2132与电极端子214电连接；沿第二方向，导热件40和主体部2131的投影至少部分重合且具有重合区域。
具体地，电池单体21在使用过程中，其发热主要集中在电极组件213的主体部2131上，将导热件40与主体部2131之间设置重合区域，使得主体部2131能够与导热件40进行有效散热，提高了导热件40对主体部2131的换热性能，使得电池单体21能够维持在安全温度之下，进而提升了使用的安全性。
结合图29和图30所示，在本申请的一些实施例中，沿第三方向，主体部2131的尺寸为L1，导热件40的尺寸为 L2，第一方向、第二方向和第三方向两两相交，其中，0.5≤L2/L1≤1.5。
本实施例中，将L2/L1范围值设定在区间[0.5，1.5]的范围内，能够减少导热件40在第三方向上所占用的空间，使得电池10的空间利用率得到了进一步提升。
需要理解的是，当L2/L1小于0.5时导热件40的尺寸过小，无法对电池单体21进行有效换热；当L2/L1大于1.5时，导热件40的尺寸较大，易于占用电池10的空间，不利于提高电池10的空间利用率。
需要指出的是，在本实施例中，L2/L1的取值可以0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4……1.5。
在本申请的一些实施例中，沿第三方向，重合区域的尺寸为L3，0.5≤L3/L1≤1。
本实施例中，通过对重合区域在第三方向尺寸的设定，从而能够使得导热件40与主体部2131之间的换热面积能够合理设定，能够极大地增强导热件40对主体部2131的换热效果。
需要理解的是，当L3/L1小于0.5时，导热件40与主体部2131的重合面积过小，使得导热件40对电池单体21的换热效果变差，无法有效保证对电池单体21的散热。
需要指出的是，在本实施例中，L3/L1的取值可以为0.5、0.6、0.7、0.8、0.9……1。
在本申请的一些实施例中，电池单体21包括电极端子214，电极端子214设于多个表面中至少一个上。
具体地，设置电极端子214，通过电池10端子实现对电池单体21的电引出，从而保证了电池单体21能够有效实现充放电操作。
需要理解的是，电池单体21具有多个表面，电极端子214可根据需要设置在电池单体21的相应表面上。
在本申请的一些实施例中，如图7、图9和图12所示，多个表面还包括第三表面218，第一表面216、第二表面217和第三表面218两两相交，电极端子214设于第三表面218上。
具体地，电池单体21包括多个表面，多个表面包括面积最大的第一表面216，第二表面217和第三表面218的面积均小于第一表面216的面积，通过对电极端子214的位置进行设定，从而使得电池单体21的结构能够满足不同电池10的安装需求，进而提高了电池单体21的适用范围。
需要理解的是，将电极端子214设置在第三表面218上，从而可以将第一表面216与导热件40导热连接，以防止电极端子214与导热件40产生干涉，保证了导热件40与电池单体21的有效导热，进而提高了导热件40对电池单体21的散热效果。
在本申请的一些实施例中，第三表面218的数量为两个，两个第三表面218相对设置且分别与所述第一表面216相交，电池单体21包括极性相反的两个电极端子214，如图7和图9所示，极性相反的两个电极端子214设在一个第三表面218上，或者极性相反的两个电极端子214分别设在两个所述第三表面218上。
具体地，如图7、图9、图18和图20所示，电池单体21包括多个表面，多个表面包括第一表面216、第二表面217和第三表面218，第一表面216为面积最大的表面，并且第二表面217的面积和第三表面218的面积均小于第一表面216的面积。
如图7或图18所示，当第一表面216沿第一方向设置并与水平面相交，两个第三表面218在第一方向上相对设置，可以将极性相反的两个电极端子214均设置在一个第三表面218上，也可以将极性相反的两个电极端子214分别设置在两个第三表面218上。
如图9或图20所示，当第一表面216沿第二方向设置并与水平面相交，两个第三表面218在第二方向上相对设置，可以将极性相反的两个电极端子214均设置在一个第三表面218上，也可以将极性相反的两个电极端子214分别设置在两个第三表面218上。
通过对电极端子214的位置进行设定，从而使得电池单体21的结构能够满足不同电池10的安装需求，进而提高了电池单体21的适用范围。
在本申请的一些实施例中，电池单体21包括第一表面216和与第一表面216相对设置的第四表面，第一表面216和第四表面沿第一方向(如图14所示)或第二方向相对设置(如图16所示)，第二方向、第一方向和第三方向两两相交；第四表面的边缘设有凹部；第一表面216用于设置电极端子214；电极端子214在第二方向上凸出设置于第一表面216，并且与凹部对应。
具体地，电池单体21包括多个表面，多个表面包括面积最大的第一表面216，并且多个表面还包括第四表面，第一表面216和第四表面在第一方向上或者第二方向上相对设置。电池阵列20的相邻两个电池单体21中，其中一个电池单体21的电极端子214与另一个电池单体21的凹部对应设置，利用凹凸配合的结构使得相邻两个电池单体21形成的组合结构更加紧凑，使得电池阵列20的结构更加紧凑，有利于提高电池10的空间利用率以及能量密度。
另外，通过对电极端子214的位置进行设定，从而使得电池单体21的结构能够满足不同电池10的安装需求，进而提高了电池单体21的适用范围。
在本申请的一些实施例中，如图21至图24所示，多个表面还包括第三表面218，第一表面216、第二表面217和第三表面218两两相交，第三表面218为面积最大的面，第一表面216和第二表面217的面积均小于第三表面218的面积。
具体地，如图24所示，第一表面216沿第一方向设置且与水平面相交，第二表面217沿第二方向设置且与水平面相交，或者如图22所示，第一表面216沿第二方向设置且与水平面相交，第二表面217沿第一方向设置且与水平面相交。电极端子214可设置在第一表面216或第二表面217上，通过对电极端子214的位置进行设定，从而使得电池单体21的结构能够满足不同电池10的安装需求，进而提高了电池单体21的适用范围。
在本申请的一些实施例中，电池单体21包括极性相反的两个电极端子214，如图7和图9所示，两个电极端子214设在第三表面218上，或者如图12所示，两个电极端子214中的一个设于第三表面218上，电池单体21的壳体211构成两个电极端子214中的另一个。
具体地，电池单体21包括多个表面，多个表面包括面积最大的第一表面216，第二表面217和第三表面218的面积 均小于第一表面216的面积，通过对电极端子214的位置进行设定，从而使得电池单体21的结构能够满足不同电池10的安装需求，进而提高了电池单体21的适用范围。
在本申请的一些实施例中，如图6所示，每列电池单体21包括至少两个电池单体21，至少两个电池单体21沿第一方向排列。
具体地，至少两个电池单体21沿第一方向排列设置，便于电池单体21在箱体30内部的布局。
需要指出的是，当至少两个电池单体21沿第一方向排列时，电池单体21的大面(面积最大的面)可以沿第一方向设置并与水平面相交，也可以沿第二方向设置并与水平面相交。
在本申请的一些实施例中，沿第一方向，电池单体21的最大尺寸为L，沿第二方向，电池单体21的最大尺寸为D，其中，L/D范围值为1～30。
具体地，如图7所示，图7中，电池单体21沿第一方向上的最大尺寸为L，电池单体21沿第二方向上的最大尺寸为D，通过对电池单体21在第一方向和第二方向上尺寸进行设定，能够在保证电池单体21支撑强度的基础上，最大限度地提升电池单体21的能量密度。
需要理解的是，当L/D的尺寸比大于30时，则会导致电池单体21沿第一方向的尺寸过大，从而不便安装，同时降低电池单体21的支撑强度。当L/D的尺寸比小于1时，则会导致电池单体21沿第一方向的尺寸过小，从而降低电池单体21的电量。
需要指出的是，L/D的取值可以为1、2、3、4、5、6、7、8……30。通过L/D设定不同的值，从而能给使得电池单体21具有不同的形状，进而满足不同型号的电池10的需求。
在本申请的一些实施例中，沿第三方向，电池单体21的最大尺寸为H，L/H范围值为0.5～6；第一方向、第二方向和第三方向两两相交。
具体地，如图7所示，图7中，沿所述第一方向，电池单体21的最大尺寸为L；电池单体21沿第一方向上的最大尺寸为L，电池单体21沿第三方向上的最大尺寸为H，电池单体21的按照上述尺寸比例设置，能够在保证电池单体21支撑强度的基础上，最大限度地提升电池单体21的电量。
需要指出的是，L/H的取值可以为0.5、1、1.5、2、2.5、3、3.5、4……6。通过L/H设定不同的值，从而能给使得电池单体21具有不同的形状，进而满足不同型号的电池10的需求。
在本申请的一些实施例中，如图29和图32所示，电池10还包括箱体30，箱体30包括两个内壁，两个内壁在第二方向上相对设置，两个内壁之间的最大距离为D2，其中，N*D＝n*D2，其中，n∈[0.7，0.99]。
具体地，N*D与D2之间的比例进行设定，从而能够使得电池阵列20能够更加适配于电池10的箱体30，并且能够在满足电池阵列20安装的基础上，有效提高电池10的空间利用率，使得电池10的能量密度能够被有效被提高。
需要理解的是，当n的取值小于0.7时，电池10的空间利用率以及能量密度会被降低，当n的取值大于0.99时，无法保证电池阵列20能够被有效安装到箱体30的内部，因此，通过将n的取值设置在[0.7，0.99]的区间内，能够有效兼顾电池阵列安装、提高电池空间利用率以及提高电池能量密度等需求。
需要指出的是，n的取值可以为0.7、0.75、0.8、0.85、0.9、0.95……0.99。通过将n设定不同的值，使得箱体30内的空间利用率得到了改善，有利于提升电池10的空间利用率及能量密度。
在本申请的一些实施例中，电池单体21通过第一粘接层60与箱体30固定连接，电池10还包括导热件40，导热件40通过第二粘接层70与电池单体21导热连接，第一粘接层60的导热系数小于或等于第二粘接层70的导热系数。
具体地，由于第一粘接层60用于电池单体21与箱体30的连接固定，而第二粘接层70用于导热连接电池单体21和导热件40，故将第一粘接层60的导热系数小于或等于第二粘接层70的导热系数设置，以保证更加有效地通过导热件40对电池单体21进行散热。
在本申请的一些实施例中，第一粘接层60的导热系数与第二粘接层70的导热系数的比值范围为0.1～1。
具体地，上述比值范围的设置，均能够有效地通过导热件40对电池单体21进行散热。
需要理解的是，当第一粘接层60的导热系数与第二粘接层70的导热系数的比值小于0.1时，第一粘接层60的导热能力较差，与第一粘接层60相连的电池单体21的侧面一侧无法通过第一粘接层60的一侧进行热传递，此时仅通过第二粘接层70的一侧进行热传递无法很好的保证对电池单体21的散热效果。当第一粘接层60的导热系数与第二粘接层70的导热系数的比值小于0.1时，第一粘接层60的导热能力强于第二粘接层70，电池单体21通过导热件40进行散热的能力被削弱，会导致电池单体21的散热效果变差。
需要指出的是，第一粘接层60的导热系数与第二粘接层70的导热系数的比值可以为0.1、0.2、0.3、0.4、0.5、0.6、0.7、0.8、0.9……1。
另外，在本实施例中，第一粘接层60与第二粘接层70可以为同一种胶，但是两者的导热系数不同，即第一粘接层60的导热系数小于第二粘接层70的导热系数，例如第一粘结层60和第二粘结层70分别可选用导热型聚氨酯胶粘剂层，并在其中添加不同份量的导热颗粒，从而达到不同的导热系数。
另外，第一粘结层60和第二粘结层70可以为两种不同的胶，例如第一粘接层60可以为结构胶、发泡填充胶、压敏胶或灌封胶等，第二粘接层70可以为导热胶等。
在本申请的一些实施例中，电池单体21包括电极组件213；电极组件213为卷绕式结构且为扁平状，电极组件213的外表面包括两个扁平面，两个扁平面沿第二方向相互面对，或者电极组件213为叠片式结构，电极组件213的第一极片、隔膜和第二极片沿第二方向层叠。
电极组件213是电池单体21中发生电化学反应的部件。在电池单体21的内部可以包含一个或更多个电极组件213。电极组件213主要由极片(正极片和负极片)卷绕或层叠(放置形成，并且通常在正极片(第一极片)与负极片(第二极片)之间设有隔膜。极片(第一极片和第二极片)具有活性物质的部分构成电极组件213的主体部2131，第一极片和第二极片不具有活性物质的部分各自构成极耳2132。正极极耳和负极极耳可以共同位于主体部2131的一端或是分别位 于主体部2131的两端。
具体地，通过将电极组件213设置成卷绕式结构且为扁平状，以及电极组件213的外表面包括两个扁平面，两个扁平面沿第二方向相互面对，或者将电极组件213为叠片式结构，从而减少了电极组件213在第二方向上所占用的空间，以便于电池10在第二方向上进行其他部件的布局和安装。
在本申请的一些实施例中，电池单体21还包括泄压机构215，泄压机构215设置在电池单体21的任一表面上。
具体地，当电池单体21发生热失控时，可通过泄压机构215及时释放电池单体21内部的压力，以避免电池单体21发生爆炸等安全隐患。
需要理解的是，泄压机构215可以设置在电池单体21的第一表面216、第二表面217、第三表面218或者其它表面上。
在本申请的一些实施例中，泄压机构215与电极端子214可设在第一表面216、第二表面217或第三表面218上。
具体地，如图6至图12所示，泄压机构215与电极端子214均设于第一表面216上，通过将泄压机构215设置在第一表面216上，从而便于对泄压机构215与电极端子214的同步安装，进而提高了装配的便捷性，使得生产的效率得到了提升。
另外，当泄压机构215设置在第二表面217上时，第二表面217与箱体30相连，从而利用箱体30对泄压机构215的外侧形成防护，减少了泄压机构215受到冲击的可能性。
此外，泄压机构215的设置位置能够满足不同电池单体21类型的需求，进一步提高了电池10的安全性能。
本申请的第二方面提出了一种用电设备1，包括如上的电池10，电池10用于提供电能驱动用电设备1行走。
在本申请的一些实施例中，在电池10的长度方向与用电设备1的行走方向不同的情况下，第一方向为用电设备1的行走方向。
具体地，将第一方向设定为用电设备1的行走方向，第三方向分别与第一方向和水平方向均相交，位于电池10的箱体30内部的电池单体21具有第一表面216和第二表面217，第一表面216设置电极端子214，第二表面217与箱体30相连，第一方向的设定，便于电池10在用电设备1上的安装和布局，以及通过调整电池单体21在箱体30内部的排列方式，来满足不同用电设备1的使用需求。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
在本申请的实施方式中，如图1至图33所示，本申请提出了一种电池10，该电池10包括由M*N个电池单体21呈M行N列排布形成的电池阵列20，M≥1，N≥1,M和N均为正整数。电池阵列20中每列电池单体21沿第一方向布置，第一方向为电池10的长度方向或具有电池10的用电设备1的行走方向，电池阵列20中每行电池单体21沿第二方向布置，第二方向与第一方向和竖直面均相交。电池单体21沿第二方向的最大尺寸为D,电池阵列20沿第二方向的最大尺寸为D1，其中，N*D/D1∈[0.70，0.99]。
具体地，全部电池单体21形成电池阵列20，其中，电池阵列20的每列沿第一方向设置，电池阵列20的行沿第二方向设置，在第二方向上，电池单体21的最大尺寸为D，电池阵列20的最大尺寸为D1，将N*D/D1的取值设置在[0.70，0.99]的区间内，从而使得全部电池单体21所形成的电池阵列20结构更加紧凑，当电池阵列20设置在电池10内时，能够减少占用电池10的内部空间，能够提高电池10的空间利用率，有利于提高电池10的能量密度。
进一步地，在本申请中，N*D/D1的取值进一步设定在[0.83，0.99]的区间内。
进一步地，电池10还包括箱体30，箱体30包括两个内壁，两个内壁在第二方向上相对设置，两个内壁之间的最大距离为D2，其中，N*D＝n*D2，其中，n∈[0.7，0.99]。
进一步地，在电池阵列20中，相邻两个电池单体21之间通过粘接胶粘接固定。
进一步地，可以在每列的相邻两个电池单体21之间设置分隔部件，也可以在每行的相邻两个电池单体21之间设置分隔部件，其中，分隔部件与电池单体21之间粘接固定。
进一步地，分隔部件包括导热件40、缓冲件、分隔板和分隔梁中的至少一种，在本申请中，分隔部件包括导热件40。
具体地，分隔部件包括导热件40，导热件40设置在电池10的箱体30内，并且导热件40沿第一方向设置，导热件40与电池单体21导热连接，其中，电池单体21与导热件40导热连接的面可以为电池单体21面积最大的面。导热件40内设有换热介质通道，换热介质在换热介质流道内流动，并通道导热件40与电池单体21进行热传递。
分隔部件的其它部件通过第一粘接层与电池单体21粘接固定，导热件40与电池单体21之间通过第二粘接层粘接固定，第一粘接层的导热系数与第二粘接层的导热系数的比值范围为0.1～1。
进一步地，电池单体21包括多个表面，其中，多个表面包括第一表面216、第二表面217和第三表面218。当第一表面216为面积最大的面且数量为两个时，两个第一表面216沿第二方向相对设置，此时，每列中的相邻两个电池单体21的第二表面217相对设置，每行中的相邻两个电池单体21的第一表面216相对设置；当第一表面216为面积最大的面且数量为两个时，两个第一表面216沿第一方向相对设置，此时，每列中的相邻两个电池单体21的第一表面216相对设置，每行中的相邻两个电池单体21的第二表面217相对设置；当第一表面216为面积最大的面且数量为一个时，第一表面216可以构成电池单体21的外周面，此时，每列中的相邻两个电池单体21沿第一方向排列设置，每行中的相邻两个电池单体21的错位设置，或者每行中的相邻两个电池单体21沿第一方向排列设置，每列中的相邻两个电池单体21的错位设置。
沿所述第一方向，电池单体21的最大尺寸为L，沿第二方向，电池单体21的最大尺寸为D，其中，L/D范围值为1～30。沿第三方向，电池单体21的最大尺寸为H，L/H范围值为0.5～6。
进一步地，电池单体21包括电极端子214，电极端子214包括极性相反的两个电极端子214，极性相反的两个电极端子214可以设置在电池单体21的同一表面上，也可以设置在电池单体21的不同表面上，还可以一个设置在电池单体 21的表面上，另一个通过电池10的单体的壳体211形成。
进一步地，在电池单体21上设置有泄压机构215，泄压机构215可以设置在第一表面216、第二表面217和第三表面218中的任意一个上，本申请说明书附图示出的结构中，泄压机构215与电极端子214均设于第一表面216上。
进一步地，沿第二方向，导热件40和主体部2131的投影至少部分重合且具有重合区域。
进一步地，沿第三方向，主体部2131的尺寸为L1，导热件40的尺寸为L2，其中，0.5≤L2/L1≤1.5。
进一步地，沿第三方向，重合区域的尺寸为L3，0.5≤L3/L1≤1。
进一步地，电池10还包括集流件50，集流件50设置在导热件40位于第一方向上的端部并与导热件40的换热介质通道连通。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (34)

  1. 一种电池，其特征在于，包括由M*N个电池单体(21)呈M行N列排布形成的电池阵列，M≥1，N≥1，M和N均为正整数；
    所述电池阵列中每列电池单体(21)沿第一方向布置，所述第一方向为所述电池的长度方向或具有所述电池的用电设备的行走方向，所述电池阵列中每行电池单体(21)沿第二方向布置，所述第二方向与所述第一方向和竖直面均相交；
    所述电池单体(21)沿所述第二方向的最大尺寸为D，所述电池阵列沿所述第二方向的最大尺寸为D1，其中，N*D/D1∈[0.70，0.99]。
  2. 如权利要求1所述的电池，其特征在于，N*D/D1∈[0.83，0.99]。
  3. 如权利要求1或2所述的电池，其特征在于，所述电池的长度方向与所述用电设备的行走方向平行或者相交。
  4. 如权利要求1至3任一项所述的电池，其特征在于，在所述电池阵列中，M≥2，在每行所述电池单体(21)中，相邻两个所述电池单体(21)之间设置有粘接胶；
    和/或在所述电池阵列中，N≥2，在每列所述电池单体(21)中，相邻两个所述电池单体(21)之间设置有粘接胶。
  5. 如权利要求1至3任一项所述的电池，其特征在于，相邻两个所述电池单体之间间隔设置。
  6. 如权利要求1至3任一项所述的电池，其特征在于，在所述电池阵列中，M≥2，在每行所述电池单体(21)中，相邻两个所述电池单体(21)之间设置有分隔部件；
    或者在所述电池阵列中，N≥2，在每行所述电池单体(21)中，相邻两个所述电池单体(21)之间设置有分隔部件。
  7. 如权利要求6所述的电池，其特征在于，所述分隔部件与所述电池单体粘接固定。
  8. 如权利要求6或7所述的电池，其特征在于，所述分隔部件包括导热件(40)、缓冲件、分隔板和分隔梁中的至少一种。
  9. 如权利要求1至8任一项所述的电池，其特征在于，所述电池单体(21)包括多个表面，所述多个表面包括第一表面(216)和第二表面(217)，所述第一表面(216)为面积最大的表面，并且所述第二表面(217)的面积小于所述第一表面(216)的面积，所述第一表面(216)沿所述第一方向设置并与水平面相交，所述第二表面(217)沿所述第二方向设置并与水平面相交，沿所述第一方向，每列所述电池单体(21)中相邻的两个所述电池单体的所述第二表面(217)相对设置，沿所述第二方向，每行所述电池单体(21)中相邻的两个所述电池单体的所述第一表面(216)相对设置。
  10. 如权利要求1至8任一项所述的电池，其特征在于，所述电池单体(21)包括多个表面，所述多个表面包括第一表面(216)和第二表面(217)，所述第一表面(216)为面积最大的表面，并且所述第二表面(217)的面积小于所述第一表面(216)的面积，所述第二表面(217)沿所述第一方向设置并与水平面相交，所述第一表面(216)沿所述第二方向设置并与水平面相交，沿所述第一方向，每列所述电池单体(21)中相邻的两个所述电池单体的所述第一表面(216)相对设置，沿所述第二方向，每行所述电池单体(21)中相邻的两个所述电池单体的所述第二表面(217)相对设置。
  11. 如权利要求1至8任一项所述的电池，其特征在于，所述电池单体(21)包括多个表面，所述多个表面包括面积最大的第一表面(216)，沿所述第一方向，每列所述电池单体(21)中相邻的两个所述电池单体的所述第一表面(216)相对设置，沿所述第二方向，每行所述电池单体(21)中相邻的两个所述电池单体的所述第一表面(216)错位设置。
  12. 如权利要求1至8任一项所述的电池，其特征在于，所述电池单体(21)包括多个表面，所述多个表面包括面积最大的第一表面(216)，沿所述第一方向，每列所述电池单体(21)中相邻的两个所述电池单体的所述第一表面(216)错位设置，沿所述第二方向，每行所述电池单体(21)中相邻的两个所述电池单体的所述第一表面(216)相对设置。
  13. 如权利要求6至12任一项所述的电池，其特征在于，所述分隔部件包括导热件(40)，所述导热件(40)沿所述第一方向设置且与所述第二方向相交，每列所述电池单体(21)的至少一侧设有所述导热件(40)，并且每列所述电池单体(21)分别与一个所述导热件(40)导热连接。
  14. 如权利要求13所述的电池，其特征在于，所述导热件(40)内设有容纳换热介质的通道。
  15. 如权利要求14所述的电池，其特征在于，所述电池还包括集流件(50)，所述集流件(50)与所述导热件(40)流体连通；
    其中，所述导热件(40)位于所述第一方向的一端设有所述集流件(50)，或，所述导热件(40)位于所述第一方向的两端分别设有所述集流件(50)。
  16. 如权利要求15所述的电池，其特征在于，所述集流件(50)为两个，两个所述集流件(50)设于所述导热件(40)的位于所述第一方向的一端，两个所述集流件(50)沿第三方向排布，所述第一方向、所述第二方向和所述第三方向两两相交。
  17. 如权利要求6至12任一项所述的电池，其特征在于，所述分隔部件包括导热件(40)，所述导热件(40)沿所述第二方向设置且与所述第一方向相交，每行所述电池单体(21)的至少一侧设有所述导热件(40)，并且每行所述电池单体(21)分别与一个所述导热件(40)导热连接。
  18. 如权利要求13至17任一项所述的电池，其特征在于，所述电池单体(21)包括电极组件(213)，所述电极组件(213)包括主体部(2131)和凸出于所述主体部(2131)的极耳(2132)，所述极耳(2132)与所述电极端子(214)电连接；沿所述第二方向，所述导热件(40)和所述主体部(2131)的投影至少部分重合且具有重合区域。
  19. 如权利要求18所述的电池，其特征在于，沿所述第三方向，所述主体部(2131)的尺寸为L1，所述导热件(40)的尺寸为L2，所述第一方向、所述第二方向和所述第三方向两两相交，其中，0.5≤L2/L1≤1.5。
  20. 如权利要求19所述的电池，其特征在于，沿所述第三方向，所述重合区域的尺寸为L3，0.5≤L3/L1≤1。
  21. 如权利要求9至20任一项所述的电池，其特征在于，所述电池单体(21)包括电极端子(214)，所述电极端子(214)设于所述多个表面中至少一个上。
  22. 如权利要求21所述的电池，其特征在于，所述多个表面还包括第三表面(218)，所述第一表面(216)、所述第二表面(217)和所述第三表面(218)两两相交，所述电极端子(214)设于所述第三表面(218)上。
  23. 如权利要求22所述的电池，其特征在于，所述第三表面(218)的数量为两个，两个所述第三表面(218)相对设置且分别与所述第一表面相交(216)，所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)设在一个所述第三表面(218)上，或者所述极性相反的两个电极端子(214)分别设在两个所述第三表面(218)上。
  24. 如权利要求22所述的电池，其特征在于，所述电池单体(21)包括极性相反的两个电极端子(214)，所述极性相反的两个电极端子(214)设在所述第三表面(218)上，或者所述极性相反的两个电极端子(214)中的一个设于所述第三表面(218)上，所述电池单体(21)的壳体(211)构成所述极性相反的两个电极端子(214)中的另一个。
  25. 如权利要求21所述的电池，其特征在于，所述电池单体(21)包括所述第一表面(216)和与所述第一表面(216)相对设置的第四表面，所述第一表面(216)和所述第四表面沿第一方向或第二方向相对设置；所述第四表面的边缘设有凹部；所述第一表面(216)用于设置所述电极端子(214)；所述电极端子(214)在所述第二方向上凸出设置于所述第一表面(216)，并且与所述凹部对应。
  26. 如权利要求1至25任一项所述的电池，其特征在于，每列所述电池单体(21)包括至少两个所述电池单体(21)，所述至少两个电池单体(21)沿所述第一方向排列。
  27. 如权利要求1至26任一项所述的电池，其特征在于，沿所述第一方向，所述电池单体(21)的最大尺寸为L，其中，L/D范围值为1～30。
  28. 如权利要求1至27任一项所述的电池，其特征在于，沿所述第一方向，所述电池单体(21)的最大尺寸为L；沿第三方向，所述电池单体(21)的最大尺寸为H，L/H范围值为0.5～6；所述第一方向、所述第二方向和所述第三方向两两相交。
  29. 如权利要求1至28任一项所述的电池，其特征在于，所述电池还包括箱体(30)，所述箱体(30)包括两个内壁，所述两个内壁在所述第二方向上相对设置，所述两个内壁之间的最大距离为D2，其中，N*D＝n*D2，其中，n∈[0.7，0.99]。
  30. 如权利要求29所述的电池，其特征在于，所述电池单体(21)通过第一粘接层(60)与所述箱体(30)固定连接，所述电池还包括导热件(40)，所述导热件(40)通过第二粘接层(70)与所述电池单体(21)导热连接，所述第一粘接层(60)的导热系数小于或等于所述第二粘接层(70)的导热系数。
  31. 如权利要求30所述的电池，其特征在于，所述第一粘接层(60)的导热系数与所述第二粘接层(70)的导热系数的比值范围为0.1～1。
  32. 如权利要求1至31任一项所述的电池，其特征在于，所述电池单体(21)包括电极组件(213)；所述电极组件(213)为卷绕式结构且为扁平状，所述电极组件(213)的外表面包括两个扁平面，两个所述扁平面沿所述第二方向相互面对；
    或，所述电极组件(213)为叠片式结构，所述电极组件(213)的第一极片、隔膜和第二极片沿所述第二方向层叠。
  33. 一种用电设备，其特征在于，包括如权利要求1至32中任一项所述的电池，所述电池用于提供电能驱动所述用电设备行走。
  34. 如权利要求33所述的用电设备，其特征在于，在所述电池的长度方向与所述用电设备的行走方向不同的情况下，所述第一方向为所述用电设备的行走方向。
PCT/CN2022/125506 2022-10-14 2022-10-14 电池及用电设备 Ceased WO2024077625A1 (zh)

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