WO2024016329A1 - 电池和用电设备 - Google Patents

电池和用电设备 Download PDF

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Publication number
WO2024016329A1
WO2024016329A1 PCT/CN2022/107443 CN2022107443W WO2024016329A1 WO 2024016329 A1 WO2024016329 A1 WO 2024016329A1 CN 2022107443 W CN2022107443 W CN 2022107443W WO 2024016329 A1 WO2024016329 A1 WO 2024016329A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
wall
battery cell
connecting bar
present application
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/CN2022/107443
Other languages
English (en)
French (fr)
Inventor
孙占宇
陈兴地
王鹏
秦峰
黄小腾
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 EP22951599.4A priority Critical patent/EP4481930A4/en
Priority to CN202280006600.1A priority patent/CN116325336B/zh
Priority to JP2024543361A priority patent/JP2025504497A/ja
Priority to KR1020247024592A priority patent/KR20240125030A/ko
Priority to PCT/CN2022/107443 priority patent/WO2024016329A1/zh
Priority to CN202223258181.7U priority patent/CN219017811U/zh
Publication of WO2024016329A1 publication Critical patent/WO2024016329A1/zh
Priority to US18/928,199 priority patent/US20250055067A1/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
    • 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
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric 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
    • H01M10/61—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
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/647—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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • 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
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/236—Hardness
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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

  • This application relates to the field of battery technology, and in particular to a battery and electrical equipment.
  • the space utilization inside the battery affects the structural strength and energy density of the battery, which in turn affects the performance of the battery. How to improve battery performance is an urgent technical issue in battery technology that needs to be solved.
  • This application provides a battery and electrical equipment that can improve the structural strength and energy density of the battery, thereby improving the performance of the battery.
  • a battery including: a box; and a plurality of battery cell rows accommodated in the box, and the battery cell rows include a plurality of battery cells arranged along a first direction, A plurality of the battery cell rows are arranged along a second direction, the second direction is perpendicular to the first direction, the battery cells include a first wall, the first wall is provided with electrode terminals; a connecting bar, The connecting strip extends along the second direction and is connected to the first walls of a plurality of battery cells in a plurality of battery cell rows arranged along the second direction.
  • the connecting strips are connected to the first walls provided with electrode terminals of the multiple battery cells in the multiple battery cell rows arranged along the second direction, and the multiple battery cells are connected through the connecting strips.
  • the battery does not need to be equipped with side panels, or structures such as beams, which can maximize the space utilization inside the battery and improve the structural strength and energy density of the battery. Therefore, the technical solutions of the embodiments of the present application can improve battery performance.
  • connection bar includes a middle connection bar, and the middle connection bar is connected to the first walls of two adjacent battery cells in the battery cell row.
  • the middle connecting strip connects the first walls of two adjacent battery cells in the battery cell row, thereby connecting the two adjacent battery cells in the battery cell row and improving the structural strength of the battery cell row.
  • connection bar includes an end connection bar, and the end connection bar is connected to the first end of the battery cell in the first direction in the battery cell row. wall connection.
  • the end connecting strip is connected to the first wall of the battery cell at the end of the first direction in the battery cell group to improve the structural strength of the battery cell at the end of the first direction in the battery cell group and improve the performance of the battery. Structural strength.
  • the middle connecting strip is provided between two adjacent electrode terminals of the two adjacent battery cells.
  • the middle connecting strip is connected to the first walls of the two adjacent battery cells. Electrode terminals are provided on the first wall. Therefore, the connecting strip is arranged between the two adjacent electrode terminals of the two adjacent battery cells. space to prevent the connecting strip from covering the electrode terminals when connecting two adjacent battery cells and affecting the electrical connection of the battery.
  • the connecting strip is a metal material plate. This ensures the strength of the connecting strip.
  • an insulating layer is provided on the surface of the connecting strip.
  • the connecting strip is a non-metallic material plate.
  • a cavity is provided inside the connecting strip.
  • the first cavity can reduce the weight of the connecting strip while ensuring the strength of the connecting strip.
  • the cavity is used to accommodate a heat exchange medium to adjust the temperature of the battery cell, so that the temperature of the battery cell can be effectively managed.
  • the dimension T of the connecting strip in a third direction is 0.5 to 30 mm, and the third direction is perpendicular to the first direction and the second direction.
  • the size T of the connecting strip in the third direction is set to 0.5 ⁇ 30mm, which can not only ensure the energy density of the battery, but also improve the structural strength of the battery.
  • the size T of the connecting bar in the third direction and the weight M of the battery cell satisfy: 0.05mm/kg ⁇ T/M ⁇ 50mm/kg, and the third direction is vertical in the first direction and the second direction.
  • the size T of the connecting bar in the third direction and the weight M of the battery cell are set to satisfy 0.05mm/kg ⁇ T/M ⁇ 50mm/kg to ensure that the battery weight energy density.
  • 0.05mm/kg ⁇ T/M ⁇ 30mm/kg to further improve the weight energy density of the battery.
  • the battery cell includes a second wall, the second wall is the wall with the largest surface area in the battery cell, and the second direction is perpendicular to the second wall.
  • the second wall with the largest surface area among the battery cells is perpendicular to the arrangement direction of the battery cells in the multiple rows and parallel to the arrangement direction of the multiple battery cells in each row of battery cells, that is, the multiple batteries in each row of battery cells.
  • the smaller surface areas of two adjacent battery cells are arranged opposite to each other.
  • the second walls with the largest surface area of the adjacent two rows of battery cells are arranged opposite to each other. The arrangement facilitates the assembly layout of multi-row battery cells and other components in the battery.
  • the end of the connecting bar in the second direction is fixed to the box to fix the connecting bar.
  • the connecting strip includes a first surface and a second surface oppositely arranged in a third direction, the first surface is connected to the first wall, and the second surface is connected to the The battery boxes are connected, and the third direction is perpendicular to the first direction and the second direction.
  • the first side of the connecting strip is connected to the first wall, and the second side of the connecting strip is connected to the box, so that the battery cells are connected to the box through the connecting strips, which can fix the battery cells and improve the structural strength of the battery.
  • the box includes a fixed wall connected to a third wall of each battery cell in a plurality of battery cell rows, and the third wall It is separated from and opposite to the first wall along a third direction that is perpendicular to the first direction and the second direction.
  • the fixed wall is connected to the third wall of the battery cell to fix the battery cell and improve the structural strength of the battery.
  • the connecting strip when the battery is installed on the electrical equipment, the connecting strip is located below the battery cell, and the fixed wall is used to mount the battery cell.
  • the connecting strip is located below the battery cell, that is, the electrode terminal of the battery cell faces downward.
  • the first wall of the battery cell is below the third wall, and the fixed wall is connected to the third wall to mount the battery cell. body.
  • the wall toward which the electrode terminals face is not a force-bearing wall, and there is no need to leave a large gap between the wall and the electrode terminals, thereby saving battery space and improving the energy density of the battery.
  • the connecting bar when the battery is installed on an electrical device, the connecting bar is located above the battery cell, and the fixed wall is used to support the battery cell.
  • the connecting strip is located above the battery cell, that is, the electrode terminal of the battery cell faces upward.
  • the first wall of the battery cell is above the third wall, and the fixed wall is connected to the third wall to support the battery cell. , improve the structural strength of the battery.
  • the connecting strip is bonded to the first wall.
  • the connecting strip is fixedly connected to the first wall by bonding, which has a simple structure and is easy to process and assemble.
  • an electrical device including: the battery in the above first aspect or any possible implementation of the first aspect, where the battery is used to provide electrical energy.
  • the connecting strip is connected to the first wall provided with the electrode terminals of the plurality of battery cells arranged along the second direction, and the plurality of battery cells are connected as a whole through the connecting strip.
  • the battery does not need to have side panels or beams and other structures, which can maximize the space utilization inside the battery and improve the structural strength and energy density of the battery. Therefore, the technical solutions of the embodiments of the present application can improve battery performance.
  • Figure 1 is a schematic structural diagram of a vehicle disclosed in an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a battery disclosed in an embodiment of the present application.
  • Figure 3 is a schematic exploded structural diagram of a battery cell disclosed in an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a battery disclosed in an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a connecting strip disclosed in an embodiment of the present application.
  • Figure 6 is a partial cross-sectional view of a battery disclosed in an embodiment of the present application.
  • Figure 7 is a partial cross-sectional view of a battery disclosed in an embodiment of the present application.
  • Figure 8 is a partial cross-sectional view of a battery disclosed in an embodiment of the present application.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a removable connection.
  • the battery cells may include lithium ion secondary batteries, lithium ion primary batteries, lithium-sulfur batteries, sodium lithium ion batteries, sodium ion batteries or magnesium ion batteries, etc., which are not limited in the embodiments of this application.
  • the battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, rectangular battery cells and soft-pack battery cells, and the embodiments of the present application are not limited to this.
  • the battery mentioned in the embodiments of this application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery pack and the like.
  • Batteries generally include a box for packaging one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • the battery cell includes an electrode assembly and an electrolyte.
  • the electrode assembly consists of a positive electrode sheet, a negative electrode sheet and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector that is not coated with the positive electrode active material layer protrudes from the current collector that is coated with the positive electrode active material layer.
  • the current collector coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector that is not coated with the negative electrode active material layer protrudes from the current collector that is coated with the negative electrode active material layer.
  • the current collector coated with the negative active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon.
  • the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.
  • the material of the isolation film can be polypropylene (PP) or polyethylene (PE).
  • the electrode assembly may have a rolled structure or a laminated structure, and the embodiments of the present application are not limited thereto.
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series, in parallel, or in mixed connection.
  • Hybrid connection refers to a mixture of series and parallel connection.
  • multiple battery cells can be first connected in series, parallel, or mixed to form a battery module, and then multiple battery modules can be connected in series, parallel, or mixed to form a battery.
  • multiple battery cells can directly form a battery, or they can first form a battery module, and then the battery module can form a battery.
  • the battery is further installed in the electrical equipment to provide electrical energy to the electrical equipment.
  • the connecting strips are connected to the electrode terminals of the plurality of battery cells in the plurality of battery cell columns arranged along the second direction.
  • the first wall connection connects multiple battery cells into a whole through connecting strips.
  • the battery does not need to have side plates or beams and other structures, which can maximize the internal improvement of the battery. Improve the space utilization and improve the structural strength and energy density of the battery. Therefore, the technical solutions of the embodiments of the present application can improve battery performance.
  • batteries such as mobile phones, portable devices, laptops, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include Airplanes, rockets, space shuttles and spacecraft, etc.
  • FIG. 1 it is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application.
  • the vehicle 1 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 a new energy vehicle. Extended range vehicles, etc.
  • a motor 40 , a controller 30 and a battery 10 may be disposed inside the vehicle 1 .
  • the controller 30 is used to control the battery 10 to provide power to the motor 40 .
  • the battery 10 may be disposed at the bottom, front or rear of the vehicle 1 .
  • the battery 10 can be used to supply power to the vehicle 1 .
  • the battery 10 can be used as an operating power source of the vehicle 1 and used in the circuit system of the vehicle 1 , for example, to meet the power requirements for starting, navigation, and operation of the vehicle 1 .
  • the battery 10 can not only be used as an operating power source of the vehicle 1 , but also can be used as a driving power source of the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .
  • the battery 10 may include multiple battery cells.
  • FIG. 2 it is a schematic structural diagram of a battery 10 according to an embodiment of the present application.
  • the battery 10 may include a plurality of battery cells 20 .
  • the battery 10 may also include a box 11.
  • the inside of the box 11 is a hollow structure, and a plurality of battery cells 20 are accommodated in the box 11.
  • a plurality of battery cells 20 are connected in parallel or in series or in a mixed combination and then placed in the box 11 .
  • the battery 10 may also include other structures, which will not be described in detail here.
  • the battery 10 may further include a bus component, which is used to realize electrical connection between multiple battery cells 20 , such as parallel connection, series connection, or mixed connection.
  • the bus component can realize electrical connection between the battery cells 20 by connecting the electrode terminals of the battery cells 20.
  • the bus part may be fixed to the electrode terminal of the battery cell 20 by welding. The electric energy of the plurality of battery cells 20 can be further drawn out through the box through the conductive mechanism.
  • the electrically conductive means can also be part of the busbar.
  • the number of battery cells 20 can be set to any value. Multiple battery cells 20 can be connected in series, parallel or mixed connection to achieve larger capacity or power. Since the number of battery cells 20 included in each battery 10 may be large, in order to facilitate installation, the battery cells 20 may be arranged in groups, and each group of battery cells 20 forms a battery module. The number of battery cells 20 included in the battery module is not limited and can be set according to requirements.
  • the battery may include multiple battery modules, which may be connected in series, parallel or mixed connection.
  • FIG. 3 it is a schematic structural diagram of a battery cell 20 according to an embodiment of the present application.
  • the battery cell 20 includes one or more electrode assemblies 22 , a casing 211 and a cover 212 .
  • Housing 211 and cover 212 form a housing or battery box 21 .
  • the wall of the casing 211 and the cover 212 are both called the wall of the battery cell 20 .
  • the wall of the casing 211 includes a bottom wall and four side walls.
  • the housing 211 is determined according to the combined shape of one or more electrode assemblies 22.
  • the housing 211 can be a hollow rectangular parallelepiped, a cube, or a cylinder, and one surface of the housing 211 has an opening to accommodate one or more electrodes.
  • Component 22 may be placed within housing 211.
  • one of the planes of the housing 211 is an opening surface, that is, the plane does not have a wall so that the inside and outside of the housing 211 are connected.
  • the end surface of the housing 211 is an open surface, that is, the end surface does not have a wall so that the inside and outside of the housing 211 are connected.
  • the cover plate 212 covers the opening and is connected with the housing 211 to form a closed cavity in which the electrode assembly 22 is placed.
  • the housing 211 is filled with electrolyte, such as electrolyte solution.
  • the battery cell 20 may further include two electrode terminals 214 , and the two electrode terminals 214 may be disposed on the cover 212 .
  • the cover 212 is generally in the shape of a flat plate, and two electrode terminals 214 are fixed on the flat surface of the cover 212.
  • the two electrode terminals 214 are respectively a positive electrode terminal 214a and a negative electrode terminal 214b.
  • Each electrode terminal 214 is provided with a connecting member 23 , or it may also be called a current collecting member 23 , which is located between the cover plate 212 and the electrode assembly 22 and is used to electrically connect the electrode assembly 22 and the electrode terminal 214 .
  • each electrode assembly 22 has a first tab 221a and a second tab 222a.
  • the first tab 221a and the second tab 222a have opposite polarities.
  • the first tab 221a is a positive tab
  • the second tab 222a is a negative tab.
  • the first tab 221a of one or more electrode assemblies 22 is connected to one electrode terminal through one connecting member 23, and the second tab 222a of one or more electrode assemblies 22 is connected to another electrode terminal through another connecting member 23.
  • the positive electrode terminal 214a is connected to the positive electrode tab through one connecting member 23, and the negative electrode terminal 214b is connected to the negative electrode tab through another connecting member 23.
  • the electrode assembly 22 can be provided as a single or multiple electrode components according to actual usage requirements. As shown in FIG. 3 , the battery cell 20 is provided with four independent electrode assemblies 22 .
  • a pressure relief mechanism 213 may also be provided on the battery cell 20 .
  • the pressure relief mechanism 213 is used to be activated to relieve the internal pressure or temperature when the internal pressure or temperature of the battery cell 20 reaches a threshold.
  • the pressure relief mechanism 213 can be various possible pressure relief structures, which are not limited in the embodiments of the present application.
  • the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism configured to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold; and/or the pressure relief mechanism 213 may be a pressure-sensitive pressure relief mechanism configured to rupture when the internal air pressure of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value.
  • FIG. 4 shows a schematic structural diagram of a battery 10 according to an embodiment of the present application.
  • the battery 10 includes a box 11 , a plurality of battery cell rows and a connecting strip 101 .
  • the plurality of battery cell rows are accommodated in the box 11 .
  • the battery cell row includes a plurality of battery cells 20 arranged along a first direction x, and a plurality of battery cell rows are arranged along a second direction y, and the second direction y is perpendicular to the first direction x.
  • the first direction x is the arrangement direction of the plurality of battery cells 20 in the battery cell row in the battery 10 . That is, the battery cells 20 in the battery cell row are arranged in the x direction.
  • the second direction y is the arrangement direction of the plurality of battery cell rows in the battery 10 . That is, the plurality of battery cell rows in the battery 10 are arranged in the y direction.
  • the battery cell 20 includes a first wall 201 provided with electrode terminals 214 .
  • the connecting strip 101 extends along the second direction y and is connected to the first walls 201 of the plurality of battery cells 20 in the plurality of battery cell rows arranged along the second direction y.
  • the connecting bar 101 is connected to the first wall 201 provided with the electrode terminal 214 of the plurality of battery cells 20 in the plurality of battery cell rows arranged along the second direction y, through the connecting bar 101
  • the connecting bar 101 By connecting multiple battery cells 20 into a whole, in this case, there is no need to install side plates in the battery, or there is no need to install structures such as beams, which can maximize the space utilization inside the battery 10 and improve Structural strength and energy density of battery 10. Therefore, the technical solutions of the embodiments of the present application can improve the performance of the battery 10 .
  • the connecting bar 101 includes a middle connecting bar 101 a , and the middle connecting bar 101 a is connected to the first walls of two adjacent battery cells 20 in the battery cell row. 201 connection.
  • the middle connecting strip 101a connects the first walls 201 of two adjacent battery cells 20 in the battery cell row, thereby connecting the two adjacent battery cells 20 in the battery cell row, thereby improving the battery cell quality. Structural strength of body columns.
  • the connecting bar 101 includes an end connecting bar 101 b , and the end connecting bar 101 b is connected to the battery cell at the end of the battery cell row in the first direction x. 20 to the first wall 201 is connected.
  • the end connecting strip 101b is connected to the first wall 201 of the battery cell 20 at the end of the battery cell row in the first direction x, so as to improve the stability of the battery cell 20 at the end of the battery cell row in the first direction x. Structural strength, improving the structural strength of the battery 10.
  • the middle connecting bar 101a is provided between two adjacent electrode terminals 214 of two adjacent battery cells 20 .
  • the middle connecting strip 101a is connected to the first wall 201 of two adjacent battery cells 20.
  • the first wall 201 is provided with electrode terminals 214, so the connecting strip 101 is disposed on the opposite side of the two adjacent battery cells 20. between two adjacent electrode terminals 214 to prevent the connecting strip 101 from covering the electrode terminals 214 when connecting two adjacent battery cells 20 and to avoid affecting the electrical connection of the battery 10 .
  • the connecting bar 101 may be a metal material plate. That is to say, the entire connecting bar 101 is made of metal material.
  • an insulating layer is provided on the surface of the connecting bar 101 .
  • the insulating layer may be an insulating film adhered to the surface of the connecting bar 101 or an insulating paint coated on the surface of the connecting bar 101 .
  • the connecting bar 101 may be a non-metallic material plate. That is to say, the entire connecting strip 101 is made of non-metallic insulating material.
  • a cavity 1013 may be provided in the connecting strip 101 .
  • the cavity 1013 can reduce the weight of the connecting bar 101 while ensuring the strength of the connecting bar 101 .
  • the cavity 1013 can be used to accommodate a heat exchange medium to adjust the temperature of the battery cell 20 .
  • the heat exchange medium may be liquid, gas or solid, and adjusting the temperature refers to heating or cooling multiple battery cells 20 .
  • the cavity 1013 can accommodate a cooling medium to adjust the temperature of the multiple battery cells 20 .
  • the heat exchange medium can also be called a cooling medium, and more specifically, can be called a cooling medium. liquid, cooling gas or cooling solid.
  • the heat exchange medium can also be used for heating, which is not limited in the embodiments of the present application.
  • the heat exchange medium can be circulated to achieve better temperature regulation effect.
  • the heat exchange medium may be water, a mixture of water and ethylene glycol, refrigerant, or air.
  • the size T of the connecting strip 101 in the third direction z is 0.5-30 mm, and the third direction z is perpendicular to the first direction x and the second direction y. .
  • the size T of the connecting bar 101 in the third direction z is set to 0.5-30 mm. This can not only ensure the energy density of the battery 10, but also improve the energy density of the battery 10. Structural strength of battery 10.
  • the dimension T of the connecting bar 101 in the third direction z and the weight M of the battery cell 20 satisfy: 0.05mm/kg ⁇ T/M ⁇ 50mm/kg.
  • the size T of the connecting bar 101 in the third direction z and the weight M of the battery cell 20 are set to satisfy 0.05mm/kg ⁇ T/M ⁇ 50mm/ kg to ensure the weight energy density of the battery 10.
  • the size T of the connecting bar 101 in the third direction z and the weight M of the battery cell 20 can further satisfy: 0.05mm/kg ⁇ T/M ⁇ 30mm/kg, so that The weight energy density of the battery 10 is further improved.
  • the battery cell 20 includes a second wall 202 , which is the wall with the largest surface area in the battery cell 20 , and the second direction y is perpendicular to Second wall 202.
  • the wall with the largest surface area among the battery cells 20 is perpendicular to the second direction y. That is to say, the second wall 202 is perpendicular to the arrangement direction of the battery cells 20 in multiple columns, and is perpendicular to the multiple rows of battery cells 20 in each column.
  • the battery cells 20 are arranged in parallel directions. That is, when multiple battery cells 20 in each row of battery cells 20 are arranged, the smaller surface areas of the two adjacent battery cells 20 are arranged opposite to each other. When multiple rows of battery cells 20 are arranged, the two adjacent columns are arranged oppositely.
  • the second walls 202 with the largest surface area of the battery cells 20 are arranged opposite each other.
  • This arrangement facilitates the assembly layout of the multi-row battery cells 20 and other components in the battery 10 .
  • a water-cooling plate can be provided between each row of battery cells 20.
  • the water-cooling plate faces the second wall 202 of the battery cell 20, that is, opposite to the wall with the largest surface area of the battery cell 20. , in this way, the contact area between the water-cooling plate and the battery cell 20 is large, and the battery 10 can be effectively thermally managed.
  • the end of the connecting bar 101 in the second direction y is fixed to the box 11 to fix the connecting bar 101 .
  • the end of the connecting strip 101 in the second direction y can be bonded to the box 11 to be fixed to the box 11 .
  • the end of the connecting strip 101 in the second direction y can also be connected to the box 11 in other ways, such as riveting, welding, bolting, etc., which is not limited in this application.
  • the end of the connecting bar 101 in the second direction y may be fixed to the outer frame 113 of the box 11 and/or the internal beam 114 .
  • the connecting bar 101 includes a first surface 1011 and a second surface 1012 that are oppositely arranged in the third direction z.
  • the second surface 1012 may be connected to the cover 111 of the box 11 .
  • the first surface 1011 of the connecting bar 101 is connected to the first wall 201, and the second surface 1012 of the connecting bar 101 is connected to the box 11, so that the battery cell 20 is connected to the box 11 through the connecting bar 101, and the battery cell can be fixed. 20. Improve the structural strength of the battery 10.
  • the second surface 1012 may be spaced apart from the cover 111 of the box 11 . In this way, there is enough space between the electrode terminal 214 and the cover 111 to prevent the electrode terminal 214 from being damaged by collision if the distance between the electrode terminal 214 and the cover 111 is too small.
  • the second surface 1012 of the connecting strip 101 is bonded to the box body 11 . It should be understood that the second surface 1012 of the connecting bar 101 and the box 11 can also be connected through other methods, such as riveting, welding, bolting, etc., which is not limited in this application.
  • the box 11 includes a fixed wall 112, which is connected to each battery cell in the plurality of battery cell columns.
  • the third wall 203 of 20 is connected, and the third wall 203 and the first wall 201 are separated along the third direction z and arranged oppositely.
  • the fixed wall 112 is connected to the third wall 203 of the battery cell 20 to fix the battery cell 20 and improve the structural strength of the battery 10 .
  • the connecting bar 101 is located above the battery cell 20, and the fixed wall 112 is used to support the battery cell. 20.
  • the connecting strip 101 is located above the battery cell 20, that is, the electrode terminal 214 of the battery cell 20 faces upward.
  • the first wall 201 of the battery cell 20 is above the third wall 203, fixed
  • the wall 112 is connected to the third wall 203 to support the battery cell 20 and improve the structural strength of the battery 10 .
  • the connecting strip 101 when the battery 10 is installed on the electrical equipment, the connecting strip 101 is located below the battery cell 20 , and the fixed wall 112 is used to mount the battery cell 20 .
  • the connecting strip 101 is located below the battery cell 20, that is, the electrode terminal 214 of the battery cell 20 faces downward.
  • the first wall 201 of the battery cell 20 is below the third wall 203, fixed
  • the wall 112 is connected to the third wall 203 to mount the battery cells 20 .
  • the wall toward which the electrode terminal 214 faces is not a force-bearing wall, and there is no need to leave a large gap between the electrode terminal 214 and the wall, thereby saving the space of the battery 10 and improving the energy density of the battery 10 .
  • the connecting strip 101 is bonded to the first wall 201 .
  • the connecting strip 101 is fixedly connected to the first wall 201 by bonding, which has a simple structure and is easy to process and assemble.
  • connecting strip 101 and the first wall 201 can also be connected in other ways, such as riveting, welding, bolting, etc., which is not limited in this application.
  • An embodiment of the present application also provides an electrical device, which may include the battery 10 in the previous embodiment.
  • the electrical equipment may be a vehicle 1, a ship, a spacecraft, etc., but the embodiment of the present application is not limited to this.
  • the battery 10 is tested for safety according to GB38031-2020, and the test results are shown in Table 1.

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Abstract

本申请实施例提供一种电池(10)和用电设备。该电池(10)包括：箱体(11)；多个电池单体列，容纳于箱体(11)，电池单体列包括沿第一方向排列的多个电池单体(20)，多个电池单体列沿第二方向排列，第二方向垂直于第一方向，电池单体(20)包括第一壁(201)，第一壁(201)设置有电极端子(214)；连接条(101)，连接条(101)沿第二方向延伸且与沿第二方向排列的多个电池单体列中的多个电池单体(20)的第一壁(201)连接。本申请实施例的技术方案，能够提升电池(10)的结构强度和能量密度，从而能够提升电池(10)的性能。

Description

电池和用电设备 技术领域
本申请涉及电池技术领域，特别是涉及一种电池和用电设备。
背景技术
随着环境污染的日益加剧，新能源产业越来越受到人们的关注。在新能源产业中，电池技术是关乎其发展的一项重要因素。
电池内部的空间利用率，影响电池的结构强度和能量密度，进而影响电池的性能。如何提升电池的性能，是电池技术中一个亟待解决的技术问题。
发明内容
本申请提供了一种电池和用电设备，能够提升电池的结构强度和能量密度，从而能够提升电池的性能。
第一方面，提供了一种电池，包括：箱体；多个电池单体列，容纳于所述箱体，所述电池单体列包括沿第一方向排列的多个所述电池单体，多个所述电池单体列沿第二方向排列，所述第二方向垂直于所述第一方向，所述电池单体包括第一壁，所述第一壁设置有电极端子；连接条，所述连接条沿所述第二方向延伸且与沿所述第二方向排列的多个所述电池单体列中的多个所述电池单体的所述第一壁连接。
在本申请实施例中，将连接条与沿第二方向排列的多个电池单体列中的多个电池单体的设置有电极端子的第一壁连接，通过连接条将多个电池单体连接成整体，这种情况下，电池内可以不再设置侧板，也可以不 需要再设置梁等结构，可以较大限度地提升电池内部的空间利用率，提升电池的结构强度和能量密度。因此，本申请实施例的技术方案能够提升电池的性能。
在一种可能的实现方式中，所述连接条包括中部连接条，所述中部连接条与所述电池单体列中相邻的两个所述电池单体的所述第一壁连接。
中部连接条连接电池单体列中相邻的两个电池单体的第一壁，从而将电池单体列中相邻的两个电池单体连接，提高电池单体列的结构强度。
在一种可能的实现方式中，所述连接条包括端部连接条，所述端部连接条与所述电池单体列中在所述第一方向端部的所述电池单体的第一壁连接。
端部连接条与电池单体组中在第一方向端部的电池单体的第一壁连接，以提高电池单体组中位于第一方向端部的电池单体的结构强度，提高电池的结构强度。
在一种可能的实现方式中，所述中部连接条设置于所述相邻的两个所述电池单体的相邻的两个所述电极端子之间。
中部连接条与相邻的两个电池单体的第一壁连接，第一壁上设置有电极端子，因此将连接条设置于相邻的两个电池单体的相邻的两个电极端子之间，以避免连接条在连接相邻的两个电池单体时覆盖电极端子，避免影响电池的电连接。
在一种可能的实现方式中，所述连接条为金属材料板。这样可以保证连接条的强度。
在一种可能的实现方式中，所述连接条表面设置有绝缘层。通过在连接条表面设置绝缘层，可以使得连接条的与第一壁连接的表面为绝缘表面。
在一种可能的实现方式中，所述连接条为非金属材料板。
在一种可能的实现方式中，所述连接条内部设置有空腔。第一空腔可以在保证连接条的强度的同时减轻连接条的重量。
在一种可能的实现方式中，所述空腔用于容纳换热介质以给所述电池单体调节温度，这样可以有效地管理电池单体的温度。
在一种可能的实现方式中，所述连接条在第三方向上的尺寸T为0.5～30mm，所述第三方向垂直于所述第一方向和所述第二方向。
当连接条在第三方向上的尺寸T过小时，连接条的刚度差，不能有效提高电池的结构强度，当连接条在第三方向上的尺寸T过大时，会占据电池内部过多的空间，不利于提高电池的能量密度，因此设置连接条在第三方向上的尺寸T为0.5～30mm，这样既可以保障电池的能量密度，又可以提高电池的结构强度。
在一种可能的实现方式中，所述连接条在第三方向上的尺寸T与所述电池单体的重量M满足：0.05mm/kg＜T/M≤50mm/kg，所述第三方向垂直于所述第一方向和所述第二方向。
当T/M过大时，电池会损失重量能量密度，因此设置连接条在第三方向上的尺寸T与电池单体的重量M满足0.05mm/kg＜T/M≤50mm/kg，以保证电池的重量能量密度。
在一种可能的实现方式中，0.05mm/kg＜T/M≤30mm/kg，以进一步提升电池的重量能量密度。
在一种可能的实现方式中，所述电池单体包括第二壁，所述第二壁为所述电池单体中表面积最大的壁，所述第二方向垂直于所述第二壁。
电池单体中表面积最大的第二壁与多列电池单体的排列方向垂直，与每列电池单体中的多个电池单体的排列方向平行，即每列电池单体中的多个电池单体排列时，相邻的两个电池单体的表面积较小的面相对排列，多列电池单体排列时，相邻的两列电池单体的表面积最大的第二壁相对排 列，该种排列方式便于多列电池单体与电池中的其他部件的组装布局。
在一种可能的实现方式中，所述连接条在所述第二方向上的端部固定于所述箱体，以固定连接条。
在一种可能的实现方式中，所述连接条包括在第三方向上相对设置的第一面和第二面，所述第一面与所述第一壁连接，所述第二面与所述电池的箱体连接，所述第三方向垂直于所述第一方向和所述第二方向。
连接条的第一面与第一壁连接，连接条的第二面与箱体连接，从而使电池单体通过连接条与箱体连接，可以固定电池单体，提高电池的结构强度。
在一种可能的实现方式中，所述箱体包括固定壁，所述固定壁与多个所述电池单体列中的每个所述电池单体的第三壁连接，所述第三壁与所述第一壁沿第三方向分隔且相对设置，所述第三方向垂直于所述第一方向和所述第二方向。
固定壁与电池单体的第三壁连接，以固定电池单体，提高电池的结构强度。
在一种可能的实现方式中，在所述电池设置于用电设备时，所述连接条位于所述电池单体下方，所述固定壁用于挂载所述电池单体。
连接条位于电池单体下方，即电池单体的电极端子朝下，在第三方向上，电池单体的第一壁在第三壁的下方，固定壁与第三壁连接，以挂载电池单体。该种情况下，电极端子朝向的壁不是受力壁，不需要与电极端子之间留有较大的空隙，以节省电池空间，提高了电池的能量密度。
在一种可能的实现方式中，在所述电池设置于用电设备时，所述连接条位于所述电池单体上方，所述固定壁用于支撑所述电池单体。
连接条位于电池单体上方，即电池单体的电极端子朝上，在第三方向上，电池单体的第一壁在第三壁的上方，固定壁与第三壁连接，以支 撑电池单体，提高电池的结构强度。
在一种可能的实现方式中，所述连接条与所述第一壁粘接。通过粘接的方式将连接条与第一壁固定连接，结构简单，便于加工和组装。
第二方面，提供了一种用电设备，包括：上述第一方面或第一方面的任意可能的实现方式中的电池，所述电池用于提供电能。
在本申请的技术方案中，将连接条与沿第二方向排列的多个电池单体的设置有电极端子的第一壁连接，通过连接条将多个电池单体连接成整体，这种情况下，电池内可以不再设置侧板，也可以不需要再设置梁等结构，可以较大限度地提升电池内部的空间利用率，提升电池的结构强度和能量密度。因此，本申请实施例的技术方案能够提升电池的性能。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例公开的一种车辆的结构示意图；
图2是本申请一实施例公开的一种电池的结构示意图；
图3是本申请一实施例公开的一种电池单体的分解结构示意图；
图4是本申请一实施例公开的一种电池的结构示意图；
图5是本申请一实施例公开的一种连接条的示意性结构图；
图6是本申请一实施例公开的一种电池的局部剖视图；
图7是本申请一实施例公开的一种电池的局部剖视图；
图8是本申请一实施例公开的一种电池的局部剖视图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，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；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；“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，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的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
在本申请中提及“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，本申请所描述的实施例可以与其它实施例相结合。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；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。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中的具体含义。
本申请中术语“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，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、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。
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提到的电池可以包括电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
电池单体包括电极组件和电解液，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流 体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔离膜的材质可以为聚丙烯(PP)或聚乙烯(PE)等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
为了满足不同的电力需求，电池可以包括多个电池单体，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。可选地，多个电池单体可以先串联或并联或混联组成电池模块，多个电池模块再串联或并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块再组成电池。电池再进一步设置于用电设备中，为用电设备提供电能。
电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、循环寿命、放电容量、充放电倍率、安全性等。其中，在电池内部空间一定的情况下，提升电池内部空间的利用率，是提升电池能量密度的有效手段。然而，在提升电池内部空间的利用率的同时，有可能会降低电池的结构强度。例如，在电池的箱体内部通常会设置用于挂载电池模块的梁，另外，电池中的电池模块也会设置侧板和端板。上述梁、侧板和端板在实现电池的固定的同时，也占用了电池的内部空间。但是，若不设置梁、侧板和端板，则会导致电池的结构强度不足，影响电池的性能。
鉴于此，本申请实施例提供了一种技术方案，在本申请实施例中，将连接条与沿第二方向排列的多个电池单体列中的多个电池单体的设置有电极端子的第一壁连接，通过连接条将多个电池单体连接成整体，这种情况下，电池内可以不再设置侧板，也可以不需要再设置梁等结构，可以较大限度地提升电池内部的空间利用率，提升电池的结构强度和能量密度。因此，本申请实施例的技术方案能够提升电池的性能。
本申请实施例描述的技术方案均适用于各种使用电池的装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。
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设备，还可以适用于所有使用电池的设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意图，车辆1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1的内部可以设置马达40，控制器30以及电池10，控制器30用来控制电池10为马达40的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1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。例如，如图2所示，为本申请一个实施例的一种电池10的结构示意图，电池10可以包括多个电池单体20。电池10还可以包括箱体11，箱体11内部为中空结构，多个电池单体20容纳于箱体11内。例如，多个电池单体20相互并联或串联或混联组合后置于箱体11内。
可选地，电池10还可以包括其他结构，在此不再一一赘述。例如，该电池10还可以包括汇流部件，汇流部件用于实现多个电池单体20之间的电连接，例如并联或串联或混联。具体地，汇流部件可通过连接电 池单体20的电极端子实现电池单体20之间的电连接。进一步地，汇流部件可通过焊接固定于电池单体20的电极端子。多个电池单体20的电能可进一步通过导电机构穿过箱体而引出。可选地，导电机构也可属于汇流部件。
根据不同的电力需求，电池单体20的数量可以设置为任意数值。多个电池单体20可通过串联、并联或混联的方式连接以实现较大的容量或功率。由于每个电池10中包括的电池单体20的数量可能较多，为了便于安装，可以将电池单体20分组设置，每组电池单体20组成电池模块。电池模块中包括的电池单体20的数量不限，可以根据需求设置。电池可以包括多个电池模块，这些电池模块可通过串联、并联或混联的方式进行连接。
如图3所示，为本申请一个实施例的一种电池单体20的结构示意图，电池单体20包括一个或多个电极组件22、壳体211和盖板212。壳体211和盖板212形成外壳或电池盒21。壳体211的壁以及盖板212均称为电池单体20的壁，其中对于长方体型电池单体20，壳体211的壁包括底壁和四个侧壁。壳体211根据一个或多个电极组件22组合后的形状而定，例如，壳体211可以为中空的长方体或正方体或圆柱体，且壳体211的其中一个面具有开口以便一个或多个电极组件22可以放置于壳体211内。例如，当壳体211为中空的长方体或正方体时，壳体211的其中一个平面为开口面，即该平面不具有壁体而使得壳体211内外相通。当壳体211可以为中空的圆柱体时，壳体211的端面为开口面，即该端面不具有壁体而使得壳体211内外相通。盖板212覆盖开口并且与壳体211连接，以形成放置电极组件22的封闭的腔体。壳体211内填充有电解质，例如电解液。
该电池单体20还可以包括两个电极端子214，两个电极端子214可以设置在盖板212上。盖板212通常是平板形状，两个电极端子214固定在盖板212的平板面上，两个电极端子214分别为正电极端子214a和负 电极端子214b。每个电极端子214各对应设置一个连接构件23，或者也可以称为集流构件23，其位于盖板212与电极组件22之间，用于将电极组件22和电极端子214实现电连接。
如图3所示，每个电极组件22具有第一极耳221a和第二极耳222a。第一极耳221a和第二极耳222a的极性相反。例如，当第一极耳221a为正极极耳时，第二极耳222a为负极极耳。一个或多个电极组件22的第一极耳221a通过一个连接构件23与一个电极端子连接，一个或多个电极组件22的第二极耳222a通过另一个连接构件23与另一个电极端子连接。例如，正电极端子214a通过一个连接构件23与正极极耳连接，负电极端子214b通过另一个连接构件23与负极极耳连接。
在该电池单体20中，根据实际使用需求，电极组件22可设置为单个，或多个，如图3所示，电池单体20内设置有4个独立的电极组件22。
电池单体20上还可设置泄压机构213。泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力或温度。
泄压机构213可以为各种可能的泄压结构，本申请实施例对此并不限定。例如，泄压机构213可以为温敏泄压机构，温敏泄压机构被配置为在设有泄压机构213的电池单体20的内部温度达到阈值时能够熔化；和/或，泄压机构213可以为压敏泄压机构，压敏泄压机构被配置为在设有泄压机构213的电池单体20的内部气压达到阈值时能够破裂。
图4示出了本申请一个实施例的电池10的结构示意图。如图4所示，电池10包括箱体11，多个电池单体列和连接条101，多个电池单体列容纳于箱体11。
电池单体列包括沿第一方向x排列的多个电池单体20，多个电池单体列沿第二方向y排列，第二方向y垂直于第一方向x。
第一方向x为电池10中的电池单体列中的多个电池单体20的排列方向。也就是说，电池单体列中的电池单体20沿x方向排列。第二方向y为电池10中的多个电池单体列的排列方向。也就是说，电池10中的多个电池单体列沿y方向排列。
电池单体20包括第一壁201，该第一壁201设置有电极端子214。连接条101沿第二方向y延伸且与沿第二方向y排列的多个电池单体列中的多个电池单体20的第一壁201连接。
在本申请实施例中，将连接条101与沿第二方向y排列的多个电池单体列中的多个电池单体20的设置有电极端子214的第一壁201连接，通过连接条101将多个电池单体20连接成整体，这种情况下，电池内可以不再设置侧板，也可以不需要再设置梁等结构，可以较大限度地提升电池10内部的空间利用率，提升电池10的结构强度和能量密度。因此，本申请实施例的技术方案能够提升电池10的性能。
可选地，在本申请一个实施例中，如图4所示，连接条101包括中部连接条101a，中部连接条101a与电池单体列中相邻的两个电池单体20的第一壁201连接。
也就是说，中部连接条101a连接电池单体列中相邻的两个电池单体20的第一壁201，从而将电池单体列中相邻的两个电池单体20连接，提高电池单体列的结构强度。
可选地，在本申请一个实施例中，如图4所示，连接条101包括端部连接条101b，端部连接条101b与电池单体列中在第一方向x端部的电池单体20的第一壁201连接。
端部连接条101b与电池单体列中在第一方向x端部的电池单体20的第一壁201连接，以提高电池单体列中位于第一方向x端部的电池单体20的结构强度，提高电池10的结构强度。
可选地，在本申请一个实施例中，如图4所示，中部连接条101a设置于相邻的两个电池单体20的相邻的两个电极端子214之间。
中部连接条101a与相邻的两个电池单体20的第一壁201连接，第一壁201上设置有电极端子214，因此将连接条101设置于相邻的两个电池单体20的相邻的两个电极端子214之间，以避免连接条101在连接相邻的两个电池单体20时覆盖电极端子214，避免影响电池10的电连接。
可选地，在本申请一个实施例中，连接条101可以为金属材料板。也就是说，连接条101整体为金属材料。这样情况下，在连接条101表面设置有绝缘层。可选地，绝缘层可以为粘接在连接条101表面的绝缘膜或者涂覆在连接条101表面的绝缘漆。
可选地，在本申请一个实施例中，连接条101可以为非金属材料板。也就是说，连接条101整体为非金属的绝缘材料。
可选地，在本申请一个实施例中，如图5所示，连接条101内可以设置有空腔1013。空腔1013可以在保证连接条101的强度的同时减轻连接条101的重量。
可选地，在本申请一个实施例中，空腔1013可以用于容纳换热介质以给电池单体20调节温度。
换热介质可以是液体、气体或固体，调节温度是指给多个电池单体20加热或者冷却。在给电池单体20降温的情况下，空腔1013可以容纳冷却介质以给多个电池单体20调节温度，此时，换热介质也可以称为冷却介质，更具体地，可以称为冷却液、冷却气体或冷却固体。另外，换热介质也可以用于加热，本申请实施例对此并不限定。可选地，换热介质可以是循环流动的，以达到更好的温度调节的效果。可选地，换热介质可以为水、水和乙二醇的混合液、制冷剂或者空气等。
可选地，在本申请一个实施例中，如图6所示，连接条101在第 三方向z上的尺寸T为0.5～30mm，第三方向z垂直于第一方向x和第二方向y。
当连接条101在第三方向z上的尺寸T过小时，连接条101的刚度差，不能有效提高电池10的结构强度，当连接条101在第三方向z上的尺寸T过大时，会占据电池10内部过多的空间，不利于提高电池10的能量密度，因此设置连接条101在第三方向z上的尺寸T为0.5～30mm，这样既可以保障电池10的能量密度，又可以提高电池10的结构强度。
可选地，在本申请一个实施例中，连接条101在第三方向z上的尺寸T与电池单体20的重量M满足：0.05mm/kg＜T/M≤50mm/kg。
当T/M过大时，电池10会损失重量能量密度，因此设置连接条101在第三方向z上的尺寸T与电池单体20的重量M满足0.05mm/kg＜T/M≤50mm/kg，以保证电池10的重量能量密度。
可选地，在本申请一个实施例中，连接条101在第三方向z上的尺寸T与电池单体20的重量M可进一步满足：0.05mm/kg＜T/M≤30mm/kg，以进一步提升电池10的重量能量密度。
可选地，在本申请一个实施例中，如图6所示，电池单体20包括第二壁202，该第二壁202为电池单体20中表面积最大的壁，第二方向y垂直于第二壁202。
电池单体20中表面积最大的壁，即第二壁202，与第二方向y垂直，也就是说，第二壁202与多列电池单体20的排列方向垂直，与每列中的多个电池单体20的排列方向平行。即每列电池单体20中的多个电池单体20排列时，相邻的两个电池单体20的表面积较小的面相对排列，多列电池单体20排列时，相邻的两列电池单体20的表面积最大的第二壁202相对排列，该种排列方式便于多列电池单体20与电池10中的其他部件的组装布局。比如，可以在每列电池单体20之间设置水冷板，在这种排列方 式下，水冷板面对电池单体20的第二壁202，也就是与电池单体20的表面积最大的壁相对，这样水冷板与电池单体20的接触面积大，能够有效对电池10进行热管理。
可选地，在本申请一个实施例中，如图4所示，连接条101在第二方向y上的端部固定于箱体11，以固定连接条101。
可选地，连接条101在第二方向y上的端部可以与箱体11粘接以固定于箱体11。应理解，连接条101在第二方向y上的端部还可以通过其他方式连接于箱体11，例如，铆接、焊接、螺栓连接等，本申请对此不做限定。
可选地，如图4所示，连接条101在第二方向y上的端部可以固定于箱体11的外框113和/或内部的梁114。
可选地，在本申请一个实施例中，如图6所示，连接条101包括在第三方向z上相对设置的第一面1011和第二面1012，第一面1011与第一壁201连接，第二面1012与箱体11连接。
具体地，如图6所示，第二面1012可以与箱体11的盖体111连接。
连接条101的第一面1011与第一壁201连接，连接条101的第二面1012与箱体11连接，从而使电池单体20通过连接条101与箱体11连接，可以固定电池单体20，提高电池10的结构强度。
可选地，在本申请一个实施例中，如图7所示，第二面1012可以与箱体11的盖体111间隔设置。这样，电极端子214与盖体111之间有足够的空间，避免电极端子214与盖体111之间距离太小被碰撞损坏。
可选地，连接条101的第二面1012与箱体11粘接。应理解，连接条101的第二面1012与箱体11还可以通过其他方式连接，例如，铆接、焊接、螺栓连接等，本申请对此不做限定。
可选地，在本申请一个实施例中，如图6、图7和图8所示，箱体11包括固定壁112，该固定壁112与多个电池单体列中的每个电池单体20的第三壁203连接，第三壁203与第一壁201沿第三方向z分隔且相对设置。
固定壁112与电池单体20的第三壁203连接，以固定电池单体20，提高电池10的结构强度。
可选地，在本申请一个实施例中，如图6和图7所示，在电池10设置于用电设备时，连接条101位于电池单体20上方，固定壁112用于支撑电池单体20。
具体地，连接条101位于电池单体20上方，即电池单体20的电极端子214朝上，在第三方向z上，电池单体20的第一壁201在第三壁203的上方，固定壁112与第三壁203连接，以支撑电池单体20，提高电池10的结构强度。
可选地，在本申请一个实施例中，如图8所示，在电池10设置于用电设备时，连接条101位于电池单体20下方，固定壁112用于挂载电池单体20。
具体地，连接条101位于电池单体20下方，即电池单体20的电极端子214朝下，在第三方向z上，电池单体20的第一壁201在第三壁203的下方，固定壁112与第三壁203连接，以挂载电池单体20。该种情况下，电极端子214朝向的壁不是受力壁，不需要与电极端子214之间留有较大的空隙，以节省电池10空间，提高了电池10的能量密度。
可选地，在本申请一个实施例中，连接条101与第一壁201粘接。通过粘接的方式将连接条101与第一壁201固定连接，结构简单，便于加工和组装。
应理解，连接条101与第一壁201还可以通过其他方式连接，例 如，铆接、焊接、螺栓连接等，本申请对此不做限定。
本申请一个实施例还提供了一种用电设备，该用电设备可以包括前述实施例中的电池10。可选地，该用电设备可以为车辆1、船舶或航天器等，但本申请实施例对此并不限定。
以下，说明本申请的实施例。下面描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。实施例中未注明具体技术或条件的，按照本领域内的文献所描述的技术或条件或者按照产品说明书进行。
采用附图中示出的电池单体20和连接条101，根据GB38031-2020对电池10进行安全测试，测试结果如表1所示。
表1
编号 T/mm M/Kg T/M mm/kg 测试结果
1 0.2 4 0.05 起火，爆炸
2 0.2 5 0.04 起火，爆炸
3 1 5 0.2 不起火，不爆炸
4 5 5 1 不起火，不爆炸
5 10 2 5 不起火，不爆炸
6 15 0.5 30 不起火，不爆炸
7 5 2 2.5 不起火，不爆炸
8 20 0.5 40 不起火，不爆炸
9 25 5 5 不起火，不爆炸
10 30 1 30 不起火，不爆炸
11 25 0.5 50 不起火，不爆炸
从上述测试结果可以看出，本申请提供的电池10可以满足安全性能要求。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。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 (20)

  1. 一种电池(10)，其特征在于，包括：
    箱体(11)；
    多个电池单体列，容纳于所述箱体(11)，所述电池单体列包括沿第一方向(x)排列的多个电池单体(20)，多个所述电池单体列沿第二方向(y)排列，所述第二方向(y)垂直于所述第一方向(x)，所述电池单体(20)包括第一壁(201)，所述第一壁(201)设置有电极端子(214)；
    连接条(101)，所述连接条(101)沿所述第二方向(y)延伸且与沿所述第二方向(y)排列的多个所述电池单体列中的多个所述电池单体(20)的所述第一壁(201)连接。
  2. 根据权利要求1所述的电池(10)，其特征在于，所述连接条(101)包括中部连接条(101a)，所述中部连接条(101a)与所述电池单体列中相邻的两个所述电池单体(20)的所述第一壁(201)连接。
  3. 根据权利要求1或2所述的电池(10)，其特征在于，所述连接条(101)包括端部连接条(101b)，所述端部连接条(101b)与所述电池单体列中在所述第一方向(x)端部的所述电池单体(20)的第一壁(201)连接。
  4. 根据权利要求2所述的电池(10)，其特征在于，所述中部连接条(101a)设置于所述相邻的两个所述电池单体(20)的相邻的两个所述电极端子(214)之间。
  5. 根据权利要求1至4中任一项所述的电池(10)，其特征在于，所述连接条(101)为金属材料板。
  6. 根据权利要求5所述的电池(10)，其特征在于，所述连接条(101)表面设置有绝缘层。
  7. 根据权利要求1至4中任一项所述的电池(10)，其特征在于，所述连接条(101)为非金属材料板。
  8. 根据权利要求1至7中任一项所述的电池(10)，其特征在于，所述连接条(101)内部设置有空腔(1013)。
  9. 根据权利要求8所述的电池(10)，其特征在于，所述空腔(1013)用于容纳换热介质以给所述电池单体(20)调节温度。
  10. 根据权利要求1至9中任一项所述的电池(10)，其特征在于，所述连接条(101)在第三方向(z)上的尺寸T为0.5～30mm，所述第三方向(z)垂直于所述第一方向(x)和所述第二方向(y)。
  11. 根据权利要求1至10中任一项所述的电池(10)，其特征在于，所述连接条(101)在第三方向(z)上的尺寸T与所述电池单体(20)的重量M满足：0.05mm/kg＜T/M≤50mm/kg，所述第三方向(z)垂直于所述第一方向(x)和所述第二方向(y)。
  12. 根据权利要求11所述的电池(10)，其特征在于，0.05mm/kg＜T/M≤30mm/kg。
  13. 根据权利要求1至12中任一项所述的电池(10)，其特征在于，所述电池单体(20)包括第二壁(202)，所述第二壁(202)为所述电池单体(20)中表面积最大的壁，所述第二方向(y)垂直于所述第二壁(202)。
  14. 根据权利要求1至13中任一项所述的电池(10)，其特征在于，所述连接条(101)在所述第二方向(y)上的端部固定于所述箱体(11)。
  15. 根据权利要求1至14中任一项所述的电池(10)，其特征在于，所述连接条(101)包括在第三方向(z)上相对设置的第一面(1011)和 第二面(1012)，所述第一面(1011)与所述第一壁(201)连接，所述第二面(1012)与所述箱体(11)连接，所述第三方向(z)垂直于所述第一方向(x)和所述第二方向(y)。
  16. 根据权利要求1至15中任一项所述的电池(10)，其特征在于，所述箱体(11)包括固定壁(112)，所述固定壁(112)与多个所述电池单体列中的每个所述电池单体(20)的第三壁(203)连接，所述第三壁(203)与所述第一壁(201)沿第三方向(z)分隔且相对设置，所述第三方向(z)垂直于所述第一方向(x)和所述第二方向(y)。
  17. 根据权利要求16所述的电池(10)，其特征在于，在所述电池(10)设置于用电设备时，所述连接条(101)位于所述电池单体(20)下方，所述固定壁(112)用于挂载所述电池单体(20)。
  18. 根据权利要求16所述的电池(10)，其特征在于，在所述电池(10)设置于用电设备时，所述连接条(101)位于所述电池单体(20)上方，所述固定壁(112)用于支撑所述电池单体(20)。
  19. 根据权利要求1至18中任一项所述的电池(10)，其特征在于，所述连接条(101)与所述第一壁(201)粘接。
  20. 一种用电设备，其特征在于，包括：根据权利要求1至19中任一项所述的电池(10)，所述电池(10)用于提供电能。
PCT/CN2022/107443 2022-07-22 2022-07-22 电池和用电设备 Ceased WO2024016329A1 (zh)

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US20250055067A1 (en) 2025-02-13
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