WO2024031418A1 - 电池、用电装置以及电池的成型方法 - Google Patents

电池、用电装置以及电池的成型方法 Download PDF

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Publication number
WO2024031418A1
WO2024031418A1 PCT/CN2022/111365 CN2022111365W WO2024031418A1 WO 2024031418 A1 WO2024031418 A1 WO 2024031418A1 CN 2022111365 W CN2022111365 W CN 2022111365W WO 2024031418 A1 WO2024031418 A1 WO 2024031418A1
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WO
WIPO (PCT)
Prior art keywords
battery
box
along
battery cells
output
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/CN2022/111365
Other languages
English (en)
French (fr)
Inventor
龙超
张文辉
陈兴地
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 KR1020247025158A priority Critical patent/KR20240126058A/ko
Priority to PCT/CN2022/111365 priority patent/WO2024031418A1/zh
Priority to CN202280006572.3A priority patent/CN116325324B/zh
Priority to JP2024544418A priority patent/JP2025504542A/ja
Priority to EP22954394.7A priority patent/EP4456294A4/en
Priority to CN202223164403.9U priority patent/CN219476924U/zh
Publication of WO2024031418A1 publication Critical patent/WO2024031418A1/zh
Priority to US18/902,398 priority patent/US20250023199A1/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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • 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
    • H01M10/62—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
    • H01M10/655—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
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • 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
    • 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
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • 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 more specifically, to a battery, an electrical device and a battery forming method.
  • Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection.
  • battery technology is an important factor related to their development.
  • the output member connected to the total output terminal of the battery pack is usually arranged across the entire battery, which causes problems of increased weight and cost.
  • the present application provides a battery, an electrical device and a battery forming method.
  • the battery can avoid arranging the output member across the entire battery, thereby reducing weight and cost.
  • a battery including a box, a battery pack, a busbar, and two output members.
  • the battery pack is arranged in the box.
  • the number of battery packs is more than two and they are arranged along the first direction.
  • Each battery pack includes an even number of battery cells arranged along the second direction.
  • the second direction is perpendicular to the first direction.
  • the battery cells The body includes a connected first side wall and a second side wall.
  • the first side wall is the wall with the largest area among all the outer walls of the battery cells.
  • the first direction is perpendicular to the first side wall.
  • the first side wall of two adjacent battery cells is The two side walls are arranged oppositely along the second direction; the busbar is used to electrically connect two adjacent battery cells; the two output members are arranged on the same side in the first direction; among them, the battery pack located on the outermost side along the first direction is arranged There are two output terminals, the two output terminals are distributed along the second direction, and the two output components are electrically connected to the two output terminals respectively to form a power supply path together with the bus component.
  • the two output parts and the two output ends of the battery face the same side, which can simplify the connection structure, improve the space utilization rate inside the box, facilitate processing and assembly, and at the same time, avoid using a long output part horizontally. Forming a power supply path across the battery pack will help reduce weight and cost, and improve battery integration and energy density.
  • the busbar includes a plurality of first busbars and a plurality of second busbars.
  • the first busbars are used to electrically connect two adjacent battery cells along the first direction
  • the second busbars are used to electrically connect two adjacent battery cells in the first direction. electrically connecting two adjacent battery cells along the second direction.
  • the busbars can be assembled regularly, improving the assembly efficiency, and ensuring the effectiveness of forming two output terminals on the outermost battery pack in the first direction, thereby ensuring that the two output parts are arranged on the third On the same side in one direction, it can improve the space utilization rate inside the box, help reduce weight and cost, and improve the integration and energy density of the battery.
  • the second busbar is used to electrically connect two adjacent battery cells in the outermost battery pack along the first direction.
  • the outermost battery pack along the first direction can form two output terminals, thereby ensuring the effectiveness of the two output members being arranged on the same side in the first direction.
  • the two output terminals are respectively disposed on the two battery cells located at the ends in the second direction in the outermost battery pack, which is beneficial to reducing the layout length of the two output members, thereby reducing weight and cost. Improve battery integration and energy density.
  • the battery further includes a limiting member, which is fixedly connected to the box and abuts against the first side wall of the battery cell.
  • the limiting member is used to limit the deformation of the battery cell in the first direction.
  • the positioning member can provide positioning for the battery cell, which is beneficial to the installation efficiency and installation accuracy, thereby ensuring that the battery has good quality.
  • the limiting member can limit the deformation of the battery cell in the first direction, which is beneficial to buffering the expansion of the battery cell and ensuring the safety performance of the battery.
  • the battery cell further includes an output member base, which is disposed on the limiting member and used to support the output member.
  • the output piece and the base of the output piece form an output interface for connecting to external electrical devices, which facilitates the installation and fixation of the output piece, avoids contact short circuits, and ensures the safety performance of the battery.
  • the limiting member extends along the second direction and is connected to the box at both ends in the second direction, which can improve the overall structural strength of the box, improve the ability to resist expansion of the battery cells, and ensure safety performance.
  • the limiting member is in contact with the first side wall of the battery cell in the outermost battery pack, which can provide positioning of the battery pack, which is beneficial to installation efficiency and installation accuracy, thereby ensuring that the battery has good quality.
  • a plurality of cavities penetrating along the second direction are provided in the limiting member.
  • the space inside the cavity is conducive to being compressed in the first direction so that the limiting member can limit the deformation of the battery cell, buffer and absorb the expansion force of the battery cell, thereby ensuring the safety performance of the battery cell.
  • the setting of the cavity can also reduce the weight of the limiter, reduce costs, achieve lightweight design, and at the same time improve the overall energy density of the battery.
  • a partition is provided between two adjacent battery groups, and the partition is in contact with the first side wall of each battery cell in the two adjacent battery groups.
  • the partition can be used as a structural member of the box.
  • the partition By clamping the partition to two adjacent battery groups and connecting it to the first side wall of each battery cell, the partition can be better At least one of the functions of improving structural strength and resisting expansion force is achieved.
  • the partition is adhesively fixed to the first side wall of each battery cell in two adjacent battery groups.
  • the partition and each battery cell are integrally connected by bonding, so that the partition and each battery cell of the battery pack can be bonded together and then integrated into the box, which facilitates the assembly of batteries into groups and also It can make adjacent battery packs more compact to improve the efficiency of box space utilization.
  • the partition is used to adjust the temperature of the battery cell, and a medium flow channel is provided in the partition.
  • the partition can not only perform thermal management of the battery cells, but also serve as a structural member of the box to improve the overall structural strength of the battery, thus eliminating the need for horizontal and vertical beams installed inside the box, resulting in high integration and reduced cost. cost, improve box space utilization, and achieve lightweight design.
  • the battery further includes a connecting channel, an inlet pipe and an outlet pipe, the medium flow channels of each partition are connected through the connecting channel, and the inlet pipe and the outlet pipe are connected to the medium flow channel of the same partition.
  • each partition can meet the demand for heat exchange medium through only one inlet pipe and one outlet pipe, reducing the space occupation rate, and simplifying the structure of the inlet pipe and outlet pipe, which facilitates assembly and replacement, and It can be applied to the supply of heat exchange media for different numbers of partitions, improving flexibility and versatility.
  • the box includes a top cover, a bottom cover and a receiving frame.
  • the bottom cover and the top cover are relatively arranged at both ends of the containing frame in the height direction of the box.
  • the limiting members are respectively connected to the containing frame, the top cover and the receiving frame. At least one of the bottom covers is connected.
  • the box further includes a connection seat, the connection seat protrudes from the accommodation frame along the second direction, and the connection seat is used to install the battery on the electrical device.
  • connection base By arranging the connection base, the connection and fixation of the entire battery in the electrical device to which it is applied is facilitated, thereby ensuring the safety performance of the battery.
  • the battery cell includes an electrode terminal, and a surface of the battery cell away from the electrode terminal is connected to the top cover or the bottom cover along the height direction.
  • the battery cells can be placed vertically in the box, or placed upside down in the box, which can improve the selectivity of battery manufacturing and molding.
  • embodiments of the present application provide an electrical device, including the battery in any of the foregoing embodiments, so that the electrical device can operate normally.
  • inventions of the present application provide a method for forming a battery, including: providing an even number of battery cells.
  • the battery cells include a first side wall and a second side wall.
  • the first side wall is all of the battery cells.
  • two battery cells are More than two battery packs are stacked and placed in the box as a whole; the battery cells of each battery pack are electrically connected through busbars; two output parts are provided, and the two output parts are arranged on the same side in the first direction.
  • the components are respectively electrically connected to two output terminals located on the outermost battery pack along the first direction, and the two output terminals are distributed along the second direction to form a power supply path together with the bus component.
  • the battery produced by this molding method is convenient for processing and assembly, and can avoid the use of a long output member across the battery pack to form a power supply path, which is beneficial to reducing weight and cost, and improving the integration and integration of the battery.
  • Energy Density is beneficial to reducing weight and cost, and improving the integration and integration of the battery.
  • Figure 1 is a schematic structural diagram of a vehicle provided by an embodiment of the present application.
  • Figure 2 is an exploded schematic diagram of a battery cell provided by an embodiment of the present application.
  • FIG. 3 is an exploded schematic diagram of a battery provided by an embodiment of the present application.
  • Figure 4 is a partial top view of a battery provided by an embodiment of the present application.
  • Figure 5 is a partial top view of a battery provided by another embodiment of the present application.
  • Figure 6 is a partial top view of a battery provided by another embodiment of the present application.
  • Figure 7 is a partial explosion schematic diagram of a battery provided by an embodiment of the present application.
  • Figure 8 is a partial exploded schematic diagram of a battery provided by another embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a battery forming method according to an embodiment of the present application.
  • 20-battery pack 21-battery cell; 211-first side wall; 212-second side wall; 201-end cover assembly; 201a-electrode terminal; 202-casing; 203-electrode assembly; 203a-positive electrode Ear; 203b-negative pole ear;
  • a first feature “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in direct contact. Indirect contact through intermediaries.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. . As the application fields of power batteries continue to expand, their market demand is also constantly expanding.
  • the applicant designed a battery after in-depth research, including a box, a battery pack, a busbar and Two output pieces.
  • the battery pack is arranged in the box.
  • the number of battery packs is more than two and they are arranged along the first direction.
  • Each battery pack includes an even number of battery cells arranged along the second direction.
  • the second direction is perpendicular to the first direction.
  • the battery cells The body includes a connected first side wall and a second side wall.
  • the first side wall is the wall with the largest area among all the outer walls of the battery cells.
  • the first direction is perpendicular to the first side wall.
  • the first side wall of two adjacent battery cells is The two side walls are arranged oppositely along the second direction; the busbar is used to electrically connect two adjacent battery cells; the two output members are arranged on the same side in the first direction; among them, the battery pack located on the outermost side along the first direction is arranged There are two output terminals, the two output terminals are distributed along the second direction, and the two output components are electrically connected to the two output terminals respectively to form a power supply path together with the bus component.
  • the battery pack is placed inside the box to meet sealing requirements.
  • the busbar is used to electrically connect two adjacent battery cells.
  • the battery pack located at the outermost side along the first direction is provided with two output terminals.
  • the two output members are provided on the same side in the first direction.
  • the two output members are electrically connected respectively. Connect to the two output terminals to form a power supply path together with the busbar, so that the two output components and the two output terminals face the same side, which can simplify the connection structure, improve the space utilization inside the box, facilitate processing and assembly, and at the same time, avoid Using a longer output piece across the battery pack to form a power supply path helps reduce weight and cost, and improves the compactness and energy density of the battery cells.
  • Electrical devices can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys and power tools, etc.
  • Vehicles can be fuel vehicles, gas vehicles or new energy vehicles, and new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.
  • spacecraft include aircraft, rockets, space shuttles, spaceships, etc.
  • electric toys include fixed Type or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc.
  • electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, for example, Electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, planers and more.
  • Electric drills Electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, planers and more.
  • FIG. 1 is a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application.
  • the vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • the battery 100 is disposed inside the vehicle 1000 , and the battery 100 may be disposed at the bottom, head, or tail of the vehicle 1000 .
  • the battery 100 may be used to power the vehicle 1000 , for example, the battery 100 may serve as an operating power source for the vehicle 1000 .
  • the vehicle 1000 may also include a controller 200 and a motor 300 .
  • the controller 200 is used to control the battery 10 to provide power to the motor 300 , for example, to meet the power requirements for starting, navigation and driving of the vehicle 1000 .
  • the battery 100 can not only be used as an operating power source for the vehicle 1000 , but also can be used as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .
  • an embodiment of the present application provides a battery 100 , including a box 10 , a battery pack 20 , a busbar 30 and two output members 40 .
  • the battery pack 20 is arranged in the box 10.
  • the number of the battery packs 20 is more than two and they are arranged along the first direction X.
  • Each battery pack 20 includes an even number of battery cells 21 arranged in the second direction Y.
  • the second direction Y Perpendicular to the first direction
  • On the first side wall 211 the second side walls 212 of two adjacent battery cells 21 are arranged oppositely along the second direction Y.
  • the bus 30 is used to electrically connect two adjacent battery cells 21 .
  • the two output members 40 are disposed on the same side of the first direction X.
  • the battery pack 21 located at the outermost side along the first direction Create a power supply path.
  • the second direction Y is perpendicular to the first direction X.
  • the first direction X can be the length direction of the box 10
  • the second direction Y is the width direction of the box 10
  • the first direction X can also be the width direction of the box 10
  • the second direction Y is the length direction of the box 10 .
  • the box 10 may be a simple three-dimensional structure such as a single rectangular parallelepiped or a cylinder, or a complex three-dimensional structure composed of simple three-dimensional structures such as a rectangular parallelepiped or a cylinder.
  • the embodiments of the present application are not limited to this.
  • the material of the box body 10 may be alloy materials such as aluminum alloy, iron alloy, etc., or may be polymer materials such as polycarbonate, polyisocyanurate foam, or composite materials such as glass fiber and epoxy resin. The embodiments of the present application are not limited to this.
  • the box 10 is used to accommodate the battery cells 21.
  • the box 10 can be of various structures, as long as the sealing requirements are ensured.
  • the number of battery groups 20 is more than two and they are arranged along the first direction X.
  • Each battery group 20 includes an even number of battery cells 21 arranged along the second direction Y.
  • the number of battery cells 21 may be two, four, six, eight, ten, or multiple, as long as the number of battery cells 21 is an even number. If there are multiple battery cells 21, along the second direction Y, the multiple battery cells 21 can be connected in series, parallel, or mixed to form a battery pack 20, and the multiple battery packs 20 can then be connected in series, parallel, or mixed along the first direction X.
  • the mixed connection forms a whole and is accommodated in the box 10 .
  • the mixed connection means that the plurality of battery cells 21 are both connected in series and in parallel.
  • the battery cell 21 may include a lithium ion battery cell 21, a sodium ion battery cell 21 or a magnesium ion battery cell 21, etc., which is not limited in the embodiment of the present application.
  • the battery cell 21 may be in a flat body, a rectangular parallelepiped, or other shapes, and the embodiments of the present application are not limited to this.
  • Battery cells 21 are generally divided into three types according to packaging methods: cylindrical battery cells 21, rectangular battery cells 21 and soft-pack battery cells 21, and the embodiment of the present application is not limited to this. However, for the sake of simplicity of description, the following embodiments take the rectangular battery cell 21 as an example.
  • the battery cell 21 refers to the smallest unit that constitutes the battery 100.
  • the battery cell 21 includes an end cap assembly 201, a casing 202 and an electrode assembly 203.
  • the end cover assembly 201 refers to a component that covers the opening of the housing 202 to isolate the internal environment of the battery cell 21 from the external environment.
  • the shape of the end cap assembly 201 may be adapted to the shape of the housing 202 to fit the housing 202 .
  • the end cap 201 can be made of a material with a certain hardness and strength (such as aluminum alloy). In this way, the end cap assembly 201 is less likely to deform when subjected to extrusion and collision, so that the battery cell 21 can have higher performance. The structural strength and safety performance can also be improved.
  • the end cap assembly 201 may be provided with functional components such as electrode terminals 201a.
  • the electrode terminal 201a may be used to electrically connect with the electrode assembly 203 for outputting or inputting electrical energy of the battery cell 21 .
  • the end cap assembly 201 may also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 21 reaches a threshold.
  • the end cap assembly 201 can also be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which are not particularly limited in the embodiment of the present application.
  • an insulating member may also be provided inside the end cover assembly 201, and the insulating member may be used to isolate the electrical connection components in the housing 202 from the end cover assembly 201 to reduce the risk of short circuit.
  • the insulating member may be plastic, rubber, etc.
  • the housing 202 is a component used to cooperate with the end cap assembly 201 to form an internal environment of the battery cell 21 , wherein the internal environment formed can be used to accommodate the electrode assembly 203 , electrolyte (not shown in the figure) and other components. .
  • the housing 202 and the end cover assembly 201 may be independent components, and an opening may be provided on the housing 202.
  • the end cover assembly 201 covers the opening at the opening to form the internal environment of the battery cell 21.
  • the end cap assembly 201 and the shell 202 can also be integrated. Specifically, the end cap assembly 201 and the shell 202 can form a common connection surface before other components are put into the shell.
  • the housing 202 may be of various shapes and sizes, such as a rectangular parallelepiped. Specifically, the shape of the housing 202 can be determined according to the specific shape and size of the electrode assembly 203 .
  • the housing 202 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which are not particularly limited in the embodiment of the present application.
  • the electrode assembly 203 is a component in the battery cell 21 where electrochemical reactions occur.
  • One or more electrode assemblies 203 may be contained within the housing 202 .
  • the electrode assembly 203 is mainly formed by winding or stacking positive electrode sheets and negative electrode sheets, and usually a separator is provided between the positive electrode sheets and the negative electrode sheets.
  • the portions of the positive electrode sheet and the negative electrode sheet that contain active material constitute the main body of the electrode assembly 203, and the portions of the positive electrode sheet and the negative electrode sheet that do not contain active material each constitute tabs.
  • the positive electrode tab 203a and the negative electrode tab 203b may be located together at one end of the main body or respectively located at both ends of the main body.
  • the battery 100 provided by the embodiment of the present application also includes a bus 30 and two output members 40 .
  • the bus 30 is used to electrically connect two adjacent battery cells 21 , and the two output members 40 are provided.
  • the battery pack 20 located at the outermost side along the first direction The output end forms a power supply path together with the bus 30 .
  • the two output parts 40 and the two output terminals of the battery 100 face the same side, which can simplify the connection structure, improve the space utilization rate inside the box 10, facilitate processing and assembly, and at the same time, avoid using a long
  • the output member 40 forms a power supply path across the battery pack 20 , which is beneficial to reducing weight and cost, and improving the compactness and energy density of the battery cells 21 .
  • two adjacent battery cells 21 can be electrically connected through the bus 30 .
  • the bus 30 can be connected to the electrode terminals 201 a on the adjacent battery cells 21 to achieve the same battery pack 20 .
  • multiple battery cells 21 in two adjacent battery packs 20 are connected in series, parallel or mixed.
  • the battery pack 20 located at the outermost side along the first direction
  • the bus 30 can be made of any material such as aluminum, copper or iron.
  • the output member 40 can be made of any material such as aluminum, copper, or iron.
  • the output member 40 can be integrally formed through a stamping process, or can also be integrally formed by casting.
  • the two output terminals are distributed along the second direction Y, so that the two output members 40 are spaced apart in the second direction Y, thereby avoiding safety problems such as short circuit caused by adjacent output members 40 coming into contact, and ensuring the safety performance of the battery 100 .
  • the number of battery cells 21 included in each battery group 20 is an even number.
  • the number of battery cells 21 included in each battery group 20 can be set to 4.
  • it can also be set to 6, as shown in Figure 6, or it can be set to 8.
  • the battery 100 provided in the embodiment of the present application is provided with two output members 40 and electrically connected to two output terminals respectively.
  • the two output terminals are located in the outermost battery pack 20 along the first direction X and along the second direction Y. distribution, so that the two output members 40 are disposed on the same side in the first direction
  • the battery pack 20 forms a power supply path, which is beneficial to reducing weight and cost, and improving the integration and energy density of the battery 100 .
  • the battery 100 provided in the embodiment of the present application adopts the above structural form.
  • the second side walls 212 of the even number of battery cells 21 can be arranged relatively along the second direction Y to form the battery pack 20.
  • Multiple battery packs 20 are arranged along the first direction Y distribution, and two output parts 40 are arranged to be electrically connected to the two output ends respectively, so as to form a power supply path together with the bus part 30 .
  • this molding method it is possible to avoid using a long output member 40 across the battery pack 20 to form a power supply path, which is beneficial to reducing weight and cost, improving the integration and energy density of the battery 100, simplifying the connection structure, and improving the box Space utilization in body 10.
  • the bus 30 includes a plurality of first bus 31 and a plurality of second bus 32 .
  • the first bus 31 is used to electrically connect adjacent ones along the first direction X.
  • the second bus 32 is used to electrically connect two adjacent battery cells 21 along the second direction Y.
  • the busbars 30 can be assembled regularly, improving the assembly efficiency, and ensuring the effectiveness of forming two output terminals on the outermost battery pack 20 in the first direction X, thus ensuring the two output members. 40 is disposed on the same side of the first direction X.
  • the first bus 31 can electrically connect the electrode terminals 201 a on adjacent battery cells 21 in the first direction X to realize series, parallel or mixed connection of multiple battery cells 21 in the same battery pack 20 .
  • the second bus 32 can electrically connect the electrode terminals 201 a on adjacent battery cells 21 in the second direction Y to realize series, parallel or mixed connection of multiple battery cells 21 in two adjacent battery groups 20 .
  • the second bus 32 is used to electrically connect two adjacent battery cells 21 in the outermost battery pack 20 along the first direction X.
  • the outermost battery pack 20 forms two output terminals, thereby ensuring the effectiveness of the two output members 50 being disposed on the same side in the first direction X.
  • the two output terminals are respectively provided on the two battery cells 21 located at the end of the second direction in the outermost battery pack 20 .
  • the length of the two output members 40 can be reduced, which is beneficial to reducing weight and cost, and improving the integration degree and energy density of the battery 100 .
  • the battery 100 further includes a limiting member 50 .
  • the limiting member 50 is fixedly connected to the box 10 and contacts the first side wall 211 of the battery unit 21 .
  • the limiting member 50 is used to limit the battery unit.
  • the body 21 deforms in the first direction X.
  • the limiting member 50 is provided to limit the deformation of the battery cell 21 in the first direction X to protect the operation safety of the battery cell 21 and thereby ensure the safety performance of the battery 100 . Moreover, it can provide positioning for the battery pack 20, which is conducive to the accurate and rapid installation of the battery pack 20 at the preset position in the box 10, avoids deviation during installation and prevents other components from being installed accurately, and improves the installation efficiency and installation accuracy. , thereby ensuring that the battery 100 has good quality.
  • the limiting member 50 and the box body 10 may have an integrated structure and be formed through processes such as bending and stamping.
  • the limiting member 50 and the box body 10 can also be provided separately, and then connected as a whole through welding, bonding, or other methods.
  • the number of limiting members 50 may be one or two, and of course, it may also be provided as multiple.
  • the limiting member 50 can limit the expansion and deformation of the battery cell 21 in the first direction X to protect the operation safety of the battery cell 21, thus ensuring the safety performance of the battery 100.
  • the ratio of the height dimension of the limiting member 50 to the height dimension of the battery cell 21 can be set between 2/3 and 11/10, and includes 2/ 3.
  • the two end values of 11/10 can not only meet the structural strength and expansion resistance effects, but also save space and improve space utilization.
  • the battery 100 further includes an output member base 60 .
  • the output member base 60 is disposed on the limiting member 50 and used to support the output member 40 .
  • output base 60 includes insulating material.
  • the number of output member bases 60 can be set to one, two, or, of course, multiple.
  • the limiting member 50 is provided with a receiving groove 51 , and the output member base 60 at least partially extends into the receiving groove 51 .
  • the accommodating groove 51 can limit the output member base 60 to prevent its displacement and cause safety problems for the battery 100. At the same time, it can also play a positioning role to facilitate the installation of the output member base 60 and improve manufacturing efficiency.
  • the number of receiving grooves 51 may be one or two, and of course, it may also be provided as multiple.
  • the shape of the receiving groove 51 can be set to match the shape of the output member base 60, and the receiving groove 51 can just fit into the output member base 60 to limit its position and prevent displacement.
  • the number of the receiving slots 51 and the output member bases 60 can be one-to-one, or they can be arranged in many-to-one arrangement, that is, multiple output member bases 60 can be arranged in the same receiving slot 51 .
  • the limiting member 50 is provided with two or more receiving grooves 51 , and the two or more receiving grooves 51 are spaced apart.
  • the accommodating groove 51 can be formed by stamping, that is, the accommodating groove 51 can be quickly formed on the limiting member 50.
  • the process is simple, and at the same time, materials can be saved, which is conducive to lightweight design.
  • the limiting member 50 extends along the second direction Y and is fixedly connected to the box 10 at both ends of the second direction Y.
  • the overall structural strength of the box 10 can be improved, the ability to resist expansion of the battery cells 21 can be improved, and safety performance can be ensured.
  • the limiting member 50 abuts against the first side wall 211 of the battery cell 21 in the outermost battery pack 20 .
  • the battery pack 20 can be positioned, which is beneficial to installation efficiency and installation accuracy, thereby ensuring that the battery 10 has good quality.
  • the number of the limiting member 50 is one, and it abuts against the first side wall 211 of the battery cell 21 in a set of outermost battery packs 20 .
  • the number of the limiting members 50 is two, and they are in contact with the first side walls 211 of the battery cells 21 in the two groups of outermost battery packs 20 .
  • the limiting member 50 is provided in the form of a plate structure, which is beneficial to reducing the layout space of the limiting member 50 , allowing the box 10 to accommodate more battery cells 21 , and improving the interior of the box 10 Space utilization.
  • each part of the limiting member 50 in the second direction Y is the same, which facilitates production and saves the internal space of the box 10 .
  • the limiting member 50 is in contact with the first side wall 211 of the battery cell 21 and can limit the deformation of the battery cell 21 in the first direction
  • the body 21 acts as a buffer and provides a force in the opposite direction to the expansion force, which is beneficial to improving the operation safety of the battery cell 21, thereby ensuring the safety and reliability of the battery 100.
  • it can provide a pressing force on the battery pack 20 to achieve limit fixation. The function ensures that the battery 100 is of good quality.
  • the limiter 50 is disposed in the box 10 and is in contact with the battery cell 21, which can also reduce the number of end plates and connectors, which is conducive to improving the installation efficiency and accuracy, thus simplifying the manufacturing process, reducing manufacturing costs and battery life. 100 overall weight, achieving lightweight design.
  • the limiter 50 can also be used as a structural member of the box 10 to meet the structural strength requirements, with a high degree of integration, and the limiter 50 and the battery cell 21 can be more closely aligned with each other, which is beneficial to improving compactness. , improve the space utilization of the box 10.
  • the limiting member 50 can better limit and fix the battery cell 21 , resist expansion deformation, and improve the structural strength. function, thereby better ensuring the safety performance of the battery 100.
  • two limiting members 50 may be provided.
  • the two limiting members 50 are respectively provided between the box 10 and the first side wall 211 of the battery cell 21 and abut against the first side wall 211 . It can limit and fix the battery cell 21 and resist the expansion force, and can also prevent the battery cell 21 from contacting the box 10 and prevent electrical connection or thermal runaway.
  • the limiter 50 can also provide a space for the battery cell.
  • Body 21 provides support and protection, and improves structural strength.
  • the battery 100 provided in the embodiment of the present application adopts the above-mentioned structural form.
  • the second side walls 212 of each battery cell 21 of the same battery pack 20 can be arranged relative to each other, and thereby two adjacent battery cells can be separated.
  • the second side walls 212 of the body 21 are connected to form a battery pack 20 including more than two battery cells 21 distributed along the second direction Y of the box 10 .
  • this molding method it is possible to improve the space utilization of the box 10 and achieve a lightweight design while meeting the requirements of limiting fixation and resisting expansion deformation. It is also simple to prepare, facilitates molding, and reduces costs.
  • a plurality of cavities penetrating along the second direction Y are provided in the limiting member 50 .
  • the plurality of cavities may be arranged to be spaced apart in the first direction X, and of course, may also be arranged to be spaced apart in the height direction Z.
  • multiple cavities can be arranged in one column, and of course, multiple columns can also be arranged.
  • multiple cavities are arranged at intervals in the height direction Z and arranged in a row to reduce the extension length of the limiting member 50 in the first direction X so that there is more space in the box 10 .
  • More battery cells 21 will help increase the energy density of the battery 100 .
  • the limiting member 50 By disposing a plurality of cavities penetrating along the second direction Y in the limiting member 50 , when the battery cell 21 expands during charging and discharging, the space in the cavity is facilitated to be compressed in the first direction X so that the limiting member 50 It can limit the deformation of the battery cell 21 and buffer and absorb the expansion force of the battery cell 21, thereby ensuring the safety performance of the battery cell 21.
  • the arrangement of the cavity can also reduce the weight of the limiting member 50 and reduce the cost, thereby achieving a lightweight design and improving the overall energy density of the battery 100.
  • the number of limiting members 50 configured as plate-like structures may be set to two.
  • the two plate-like structures are spaced apart in the first direction X, and the battery pack 20 is clamped between the two plate-like structures. between structures.
  • the plate-like structure has two limiting members 50 spaced apart in the first direction X.
  • the battery pack 20 is clamped between the two plate-like structures, that is, the plate-like structure is located between the battery pack 20 and the inner wall of the box 10 , a plate-like structure is disposed in contact with the first side wall 211 , and the two plate-like structures can be used to respectively define the position of the battery cell 21 in the first direction X of the box 10 Deformation can better meet the needs of limit fixation and resistance to expansion, and better ensure the safety performance of the battery 100.
  • the first side wall 211 of the unit 21 is in contact with each other.
  • the partition 70 can achieve at least one of the functions of improving structural strength and resisting expansion force.
  • the partition 70 is in contact with the first side wall 211 of each battery cell 21 in the two adjacent battery packs 20, which can serve as a structural member of the box 10 to support the battery cells 21 and improve the structural strength. , and the partition 70 can also be used to resist the expansion force of the battery cells 21 disposed in contact, thereby ensuring the safety performance of the battery 100 .
  • the ratio of the height dimension of the partition 70 in the height direction Z to the height dimension of the battery cell 21 can be set between 2/3 and 11/10, including 2/3 and 11/10.
  • the two end values can not only meet the structural strength and expansion resistance effects, but also save space and improve space utilization.
  • the partition 70 can also be used for thermal management of the abutting battery cells 21 to ensure that the battery cells 21 are within a suitable temperature range, thereby ensuring the safety performance of the battery 100 .
  • the partition 70 can also prevent the battery cells 21 of two adjacent groups of battery packs 20 in the first direction X from being in direct contact and causing problems such as short circuits.
  • the number of battery packs 20 is two, and of course, it can also be provided as multiple.
  • the number of the partition 70 can be set to one.
  • the number of the battery packs 20 is set to two, one partition 70 is sandwiched between the two battery packs 20 .
  • multiple partitions 70 can also be provided.
  • one partition 70 is sandwiched between every two adjacent battery groups 20 .
  • each battery group 20 includes more than two battery cells 21 distributed along the second direction Y of the box 10 .
  • the partition 70 can prevent the first direction
  • the battery cells 21 of two adjacent groups of battery packs 20 on X are in direct contact, causing problems such as short circuits.
  • the partition 70 is adhesively fixed to the first side wall 211 of each battery cell 21 in two adjacent battery packs 20 .
  • the connection between the partition 70 and each battery cell 21 is more firm and the connection stability is good, thereby ensuring the safety and reliability of the battery 100 .
  • the partition 70 and each battery cell 21 are integrally connected by bonding, so that the partition 70 and each battery cell 21 of the battery pack 20 can be bonded together and then integrated into the box 10 as a whole, which is advantageous. Assembling the batteries 100 into groups can also make adjacent battery groups 20 more compact, thereby improving the space utilization efficiency of the box 10 .
  • the use of bonding can help reduce consumables and overall weight, and achieve a lightweight design of the battery 100 . Furthermore, it can also simplify the manufacturing process and improve production efficiency and assembly efficiency.
  • a connecting glue layer may be provided between the partition 70 and the first side wall 211 so that the partition 70 and each battery unit 21 are bonded and fixed.
  • connection adhesive layer may include thermally conductive structural adhesive, which not only has good bonding effect, but also has thermal conductivity, aging resistance, fatigue resistance, corrosion resistance and other properties, and can improve the connection strength and heat resistance between the battery cell 21 and the partition 70 . Management efficiency allows heat to be transferred between the battery cell 21 and the partition 70 more quickly.
  • the connecting adhesive layer also includes double-sided tape.
  • the partition 70 is used to adjust the temperature of the battery cell 21 , and a medium flow channel is provided in the partition 70 .
  • the partition 70 can be configured as a heat exchange plate.
  • the heat exchange plate is sandwiched between two adjacent groups of battery packs 20 and connected to the first side wall 211. Through this arrangement, the contact between the heat exchange plates can be adjusted.
  • the temperature of the battery cell 21 meets the thermal management requirements of the battery cell 21.
  • the first side wall 211 is the wall with the largest area among all the outer walls of the battery cell 21, it can increase the distance between the heat exchange plate and the battery cell 21.
  • the contact area is conducive to improving the thermal management efficiency of the battery cell 21.
  • Each battery cell 21 may have two first side walls 211 , that is, the two first side walls 211 of each battery cell 21 are respectively connected to the partition 70 to better improve thermal management efficiency and ensure that the battery cells The temperature of body 21 is stable.
  • Thermal management should be understood to mean that the heat between the partition 70 and the battery cell 21 can be transferred between the two.
  • the partition 70 is in direct contact with the battery cell 21 to achieve contact heat exchange, or a thermal conductive structure (such as thermal conductive glue) is provided between the partition 70 and the battery cell 21 for heat exchange.
  • the partition 70 dissipates heat or heats the battery cell 21 , controls the temperature of the battery cell 21 within an appropriate range, and improves the service life and safety performance of the battery cell 21 .
  • the heat generated by the thermal runaway battery cell 21 will be taken away by the partition 70 in contact with it, reducing the temperature of the thermal runaway battery cell 21 and preventing adjacent battery cells 21 from running away. Thermal runaway problems also occur, thereby ensuring the safety performance of the battery cells 21.
  • a partition 70 is sandwiched between two adjacent battery groups 20. It can be understood that one partition 70 can act on two groups of battery groups 20 and exchange heat with them, and one battery group 20 can interact with two groups of battery groups 20. Each partition 70 performs heat exchange, which is beneficial to improving thermal management efficiency and improving the safety and reliability of the battery cell 21 .
  • a medium flow channel is provided in the partition 70 so that the heat exchange medium (such as water, air, phase change material, etc.) can circulate in the medium flow channel to exchange heat with the battery cells 21, so that the partition 70 can complete the heating of the battery cells. 21 thermal management.
  • the heat exchange medium such as water, air, phase change material, etc.
  • the partition 70 can also serve as a structural member of the box 10 to improve the overall structural strength of the battery 100, thus eliminating the need for horizontal and vertical beams provided inside the box 10, resulting in high integration, reduced costs, and improved space utilization of the box 10. efficiency and achieve lightweight design.
  • the first side wall 211 is the wall with the largest area among all the outer walls of the battery cell 21 , the partition 70 can better exchange heat with the battery cell 21 and improve thermal management efficiency.
  • the battery 100 also includes a connecting channel 71, an inlet pipe 72 and an outlet pipe 73.
  • the medium flow channels of each partition 70 are connected through the connecting channel 71.
  • the inlet pipe 72 and the outlet pipe 73 are connected to the same The medium flow channels of the partition 70 are connected.
  • the connecting channel 71 , the inlet pipe 72 and the outlet pipe 73 can be disposed on the same side of the partition 70 extending along the second direction Y. Of course, they can also be disposed on both sides of the partition 70 extending along the second direction Y respectively. .
  • extension direction of the inlet pipe 72 and the extension direction of the outlet pipe 73 may be the same or different.
  • connecting channels 71 are provided on both sides of the medium flow channel of one partition 70 extending along the second direction Y.
  • the connecting channels 71 on both sides of the medium flow channel of each partition 70 are connected in sequence and are respectively connected to the inlet.
  • the tube 72 and the outlet tube 73 are easy to assemble and replace, and have greater flexibility.
  • connectors may be provided on both sides of the partition 70 extending along the second direction Y to connect with the connection channel 71 to improve the connection strength.
  • each partition 70 can meet the demand for heat exchange medium through only one inlet pipe 72 and one outlet pipe 73, reduce the space occupation rate, and simplify the inlet pipe 72 and the outlet pipe.
  • 73 structure is convenient for assembly and replacement, and can be applied to the heat exchange medium supply of different numbers of partitions 70 to improve flexibility and versatility.
  • the box 10 is provided with a through hole, and the inlet pipe 72 and the outlet pipe 73 respectively extend out of the box 10 through the through hole.
  • the inlet pipe 72 can be connected to an external device that provides heat exchange medium, which facilitates obtaining the heat exchange medium and transporting it to the partition 70, and the outlet pipe 72.
  • the pipe 73 can be connected to an external device for storing heat exchange medium to discharge the heat exchange medium that exchanges heat with the battery cell 21 , which facilitates the acquisition and removal of the heat exchange medium, and at the same time can reduce the leakage of the heat exchange medium in the box 10 risk, thereby ensuring the safety and reliability of the battery 100.
  • the device that provides the heat exchange medium externally and the device that stores the heat exchange medium can be configured as the same device, or of course, they can also be two separate devices.
  • the box 10 includes a top cover 11, a bottom cover 12 and a receiving frame 13.
  • the bottom cover 12 and the top cover 11 are arranged opposite to the containing frame 13 in the height direction Z of the box 10.
  • the limiting members 50 are respectively connected to the containing frame 13 and at least one of the top cover 11 and the bottom cover 12 .
  • the top cover 11, the bottom cover 12 and the containing frame 13 together form a box 10 containing the battery cells 21 to ensure sealing requirements.
  • the accommodating frame 13 may have an opening 10a.
  • the accommodating frame 13 may be provided with an opening 10a on one side, that is, the accommodating frame 13 is integrally formed with one of the top cover 11 and the bottom cover 12, and the other is closed.
  • the opening 10a is connected with a receiving frame 13 to form a box 10 to seal and protect the battery pack 20.
  • the accommodating frame 13 can also be provided with openings 10a on both sides, and the two openings 10a are closed using the top cover 11 and the bottom cover 12 respectively, and are connected with the accommodating frame 13 and enclosed to form a box 10, so as to store the battery pack 20 Sealing protection.
  • sealing members such as sealant, sealing rings, etc., may be provided between the receiving frame 13 and the top cover 11 or the bottom cover 12 .
  • top cover 11 , the bottom cover 12 and the containing frame 13 can be connected through bolts, hot-melt self-tapping screws (Flowdrill Screws, FDS), bonding, welding, etc., which is not limited in this application.
  • FDS hot-melt self-tapping screws
  • the top cover 11 or the bottom cover 12 can be made of a material with a certain high hardness and strength (such as aluminum alloy), which is not prone to deformation and has higher structural strength to improve safety performance.
  • a material with a certain high hardness and strength such as aluminum alloy
  • the bottom cover 12 and the receiving frame 13 can be formed into an integral structure.
  • the bottom cover 12 and the receiving frame 13 can also be provided separately and then connected as a whole by welding, bonding, etc.
  • the bottom cover 12 and the accommodation frame 13 are detachably connected, which can reduce costs and facilitate the replacement of the bottom cover 12 or the accommodation frame 13 when problems such as damage occur.
  • the bottom cover 12 and the containing frame 13 can be made of the same material, and of course, can also be made of different materials.
  • the bottom cover 12 can be made of a material with high hardness and strength (such as aluminum alloy), which is not prone to deformation and has higher structural strength to improve safety performance.
  • a material with high hardness and strength such as aluminum alloy
  • the bottom cover 12 can be made of a material that is stronger than the material of the containing frame 13 , which can help absorb external collision forces to achieve a buffering effect on the battery 100 and prevent the battery 100 from deforming due to vibration, impact, etc. failure to improve the safety and reliability of the battery 100 and further improve the overall structural strength of the battery 100 to adapt to various working conditions.
  • the bottom cover 12 can also be provided with a reinforcing rib structure, which can better improve the structural strength of the battery 100 .
  • the overall structure of the battery 100 can be configured according to different needs, thereby improving versatility.
  • the limiting member 50 can be connected to the accommodating frame 13 and the bottom cover 12 .
  • it can also be connected to the accommodating frame 13 and the top cover 11 .
  • it can also be connected to the accommodating frame 13 , the top cover 11 and the bottom cover 12 . .
  • the limiting member 50 is connected to the containing frame 13 and the bottom cover 12 , and the limiting member 50 is spaced apart from the top cover 11 .
  • the battery cells 21 , the limiting member 50 and the containing frame may first be assembled. 13 and the bottom cover 12 are connected, and then the top cover 11 is closed to form a box 10 in a sealed space.
  • the limiting member 50 is spaced apart from the top cover 11 .
  • at least part of the top cover 11 can be recessed away from the battery cell 21 in the height direction Z to form a recess.
  • the box 10 further includes a connection base 14 that protrudes from the accommodation frame 13 along the second direction Y.
  • the connection base 14 is used to install the battery 100 on an electrical device.
  • connection base 14 is provided to facilitate the connection and fixation of the battery 100 as a whole in the electrical device to which it is applied, such as being fixed on the chassis of the vehicle 1000, etc., thereby improving the connection stability and making the connection firmer, and at the same time, avoiding failure of the connection causing the battery 100 to malfunction. Safety risk issues to ensure the safe and reliable performance of battery 100.
  • the connecting base 14 is protruding from one side of the accommodating frame 13 along the second direction Y.
  • the accommodating frame 13 is provided with protruding connecting bases 14 on both sides along the second direction Y.
  • the battery cell 21 includes an electrode terminal 201 a.
  • the surface of the battery cell 21 away from the electrode terminal 201 a is connected to the top cover 11 or the bottom cover 12 .
  • the battery cells 21 can be placed vertically in the box 10 or placed upside down in the box 10 , which can improve the selectivity of manufacturing and molding the battery 100 .
  • the surface of the battery cell 21 facing away from the electrode terminal 201a is connected to the bottom cover 12 .
  • the battery cell 21 is placed vertically in the box 10 , that is, the electrode terminal 201 a is disposed close to the top cover 11 , so that when the battery cell 21 is assembled on an electrical device such as the vehicle 1000 , the electrodes of the battery cell 21
  • the terminal 201a faces upward to prevent the electrode terminal 201a from being scratched against the bottom cover 12 when the battery 100 as a whole encounters bumps or vibrations, causing damage to the pressure relief mechanism and other structures, thereby ensuring the safety performance of the battery 100.
  • the surface of the battery cell 21 facing away from the electrode terminal 201a is connected to the top cover 11 .
  • the battery cell 21 is placed upside down in the box 10, so that when the battery cell 21 is assembled to an electrical device such as the vehicle 1000, it can be placed upside down so that the electrode terminal 201a of the battery cell 21 faces downward to improve the The space utilization of the box 10 in the height direction Z is high, and the personal safety of the driver is ensured.
  • the battery 100 further includes a buffer member disposed between the electrode terminal 201 a and the top cover 11 or the bottom cover 12 along the height direction Z.
  • the buffer can provide buffering to the electrode terminal 201a of the battery cell 21 to prevent it from scratching the top cover 11 or the bottom cover 12 and causing a pressure relief mechanism, etc. The structure is damaged, thereby ensuring the safety performance of the battery 100.
  • an embodiment of the present application provides an electrical device, including the battery 100 in any of the aforementioned embodiments.
  • the battery 100 is used to provide electrical energy so that the electrical device can operate normally.
  • an embodiment of the present application provides a method for forming a battery 100, which includes the following steps:
  • the battery cell 21 includes a first side wall 211 and a second side wall 212.
  • the first side wall 211 is the wall with the largest area among all the outer walls of the battery cell 21;
  • S200 Group multiple battery cells 21 into groups, each group including an even number of battery cells 21, and arrange the second side walls 212 of each battery cell 21 in the same group to face each other to form more than two battery groups 20;
  • S300 Stack two or more battery packs 20 and place them in the box 10 as a whole.
  • S500 Provide two output members 40.
  • the two output members 40 are disposed on the same side of the first direction
  • the two output terminals are distributed along the second direction Y to form a power supply path together with the bus 30 .
  • the provided battery cell 21 may be one of the battery cells 21 of the volume in each of the above embodiments.
  • each group includes an even number of battery cells 21.
  • each group may include four battery cells 21, six battery cells 21, or eight battery cells 21. This application does not limit this. It only needs to ensure that the number of battery cells 21 included in each group is An even number is enough.
  • step S300 two or more battery packs 20 can be put into the box 10 as a whole.
  • a tool can be used to clamp the battery packs 20 and put them into the box 10, and then the tool can be removed.
  • Each battery cell 21 in 20 rebounds and presses the box 10 so that it is an interference fit with the box 10, and the box 10 is closed to complete the preparation of the battery 100.
  • the connection strength and the compactness between the battery cells 21 can be improved, the space utilization of the box 10 can be improved, a lightweight design can be achieved, the preparation is simple, it is convenient for molding, and the cost can be reduced.
  • the bus 30 can electrically connect two adjacent battery cells 21 in the same battery pack 20. Of course, it can also electrically connect two adjacent battery cells 21 in two adjacent battery packs 20.
  • step S500 two or more output members 40 are disposed on the same side of the battery 100 in the first direction X, and are respectively electrically connected to the two outputs disposed on the outermost battery pack 20 along the first direction X. end, the two output ends are distributed along the second direction Y to form a power supply path together with the bus piece 30.
  • this molding method it is possible to avoid using a long output piece 40 across the battery pack 20 to form a power supply path, which is beneficial to The weight and cost are reduced, the integration level and energy density of the battery 100 are improved, the connection structure can be simplified, and the space utilization rate inside the box 10 is improved.
  • the two output terminals can be respectively provided on the two battery cells 21 located at the end of the second direction Y in the outermost battery pack 20, which is beneficial to reducing the length of the two output members 40, thereby reducing the weight and cost, and improve the integration degree and energy density of the battery 100.

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

Abstract

本申请实施例提供一种电池、用电装置以及电池的成型方法，电池包括箱体、电池组、汇流件以及两个输出件。两个以上电池组沿第一方向排列，每个电池组包括偶数个沿第二方向排列的电池单体，第二方向垂直第一方向，电池单体包括相连的第一侧壁和第二侧壁，第一侧壁为电池单体的所有外壁中面积最大的壁，相邻两个电池单体的第二侧壁沿第二方向相对设置；汇流件电连接相邻两个电池单体；两个输出件设置于第一方向同一侧；位于沿第一方向最外侧的电池组设置有两个输出端，两个输出端沿第二方向分布且分别电连接于两个输出端，以与汇流件共同形成供电通路。本申请实施例能够提高电池整体的集成度以及能量密度，且利于加工装配、降低重量以及成本。

Description

电池、用电装置以及电池的成型方法 技术领域
本申请涉及电池技术领域，并且更具体地，涉及一种电池、用电装置以及电池的成型方法。
背景技术
节能减排是汽车产业可持续发展的关键，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在现有的电池制造工艺中，连接电池组总输出端的输出件通常设置为横跨电池整体的形式，存在重量以及成本增加的问题。
发明内容
本申请提供了一种电池、用电装置以及电池的成型方法，电池能够避免将输出件设置为横跨电池整体的形式，降低重量以及成本。
第一方面，本申请实施例提供了一种电池，包括箱体、电池组、汇流件以及两个输出件。电池组设置于箱体内，电池组的数量为两个以上并沿第一方向排列，每个电池组包括偶数个沿第二方向排列的电池单体，第二方向垂直于第一方向，电池单体包括相连的第一侧壁和第二侧壁，第一侧壁为电池单体的所有外壁中面积最大的壁，第一方向垂直于第一侧壁，相邻两个电池单体的第二侧壁沿第二方向相对设置；汇流件用于电连接相邻两个电池单体；两个输出件设置于第一方向的同一侧；其中，位于沿第一方向最外侧的电池组设置有两个输出端，两个输出端沿第二方向分布，两个输出件分别电连接于两个输出端，以与汇流件共同形成供电通路。
在本申请实施例中，电池的两个输出件以及两个输出端朝向同一侧，能够简化连接结构，提高箱体内空间利用率，利于加工装配，同时，能够避免采用一个较长的输出件横跨电池组的方式形成供电通路，利于降低重 量以及成本，提高电池的集成度及能量密度。
在本申请实施例中，汇流件包括多个第一汇流件和多个第二汇流件，第一汇流件用于沿第一方向电连接相邻的两个电池单体，第二汇流件用于沿第二方向电连接相邻的两个电池单体。
通过此方式设置，能够使汇流件有规律的进行装配，提高装配效率，并且，能够保证在第一方向最外侧的电池组上形成两个输出端的有效性，从而保证两个输出件设置于第一方向的同一侧，以提高箱体内空间利用率、利于降低重量以及成本，提高电池的集成度及能量密度。
在一些实施例中，第二汇流件用于电连接位于沿第一方向最外侧的电池组中的相邻的两个电池单体。
通过此方式设置，能够使得沿第一方向最外侧的电池组形成两个输出端，从而保证两个输出件设置于第一方向的同一侧的有效性。
在一些实施例中，两个输出端分别设置于最外侧的电池组中位于第二方向端部的两个电池单体上，利于减小两个输出件的布置长度，从而降低重量以及成本，提高电池的集成度及能量密度。
在一些实施例中，电池还包括限位件，限位件固定连接于箱体内并与电池单体的第一侧壁抵接，限位件用于限制电池单体在第一方向形变。
在本申请实施例中，限位件能够对电池单体提供定位，利于安装效率及安装精度，从而保证电池具有良好品质。并且，限位件能限制电池单体在第一方向上的形变，利于对电池单体的膨胀进行缓冲，保证电池的安全性能。
在一些实施例中，电池单体还包括输出件底座，输出件底座设置于限位件并用于支撑输出件。
通过此方式设置，使输出件与输出件底座形成输出接口以与外部用电装置连接，便于输出件的安装和固定，也能避免发生接触短路，保证电池的安全性能。
在一些实施例中，限位件沿第二方向延伸，并在第二方向的两端与箱体连接，能够提高箱体整体的结构强度，提高抵抗电池单体膨胀的能力，保证安全性能。
在一些实施例中，限位件抵接于最外侧的电池组中的电池单体的第一侧壁，能够对电池组提供定位，利于安装效率及安装精度，从而保证电池具有良好品质。
在一些实施例中，限位件内设置有多个沿第二方向贯穿的腔体。
通过此方式设置，腔体内空间在第一方向上利于被压缩以使限位件能够在限制电池单体的形变，缓冲并吸收电池单体的膨胀力，从而保证电池单体的安全性能。并且，腔体的设置还能减小限位件的重量，降低成本，实现轻量化设计，同时能够提高电池整体的能量密度。
在一些实施例中，沿第一方向，相邻两个电池组之间设置有分隔部，分隔部与相邻两个电池组中各电池单体的第一侧壁抵接。
通过此方式设置，分隔部可以用作箱体的结构件，通过将分隔部夹持于相邻两个电池组并与各电池单体的第一侧壁连接，以使分隔部能够更好的实现提高结构强度、抵抗膨胀力中的至少一者的作用。
在一些实施例中，分隔部与相邻两个电池组中各电池单体的第一侧壁粘接固定。
通过此方式设置，利于提高分隔部与电池单体的连接强度及连接稳定性，从而保证电池的安全可靠。并且，利用粘接的方式将分隔部与各电池单体连接一体，可以使得分隔部与电池组的各电池单体粘接为一体后再整体装入箱体内，利于电池的装配成组，还能使相邻电池组设置的更加紧凑，以提升箱体空间利用效率。
在一些实施例中，分隔部用于调节电池单体的温度，分隔部内设置有介质流道。
通过上述设置，分隔部既能对电池单体进行热管理，并且，还能够作为箱体的结构件提高电池整体的结构强度，从而取消设置在箱体内部的横纵梁，集成度高、降低成本、提高箱体空间利用率，实现轻量化设计。
在一些实施例中，电池还包括联通道、进管以及出管，各分隔部的介质流道通过联通道连通，进管以及出管与同一分隔部的介质流道连通。
通过此方式设置，使得各分隔部仅通过一个进管以及一个出管即可满足对换热介质的需求，减小空间占用率，并且能够简化进管以及出管结 构，利于装配以及更换，且可适用于不同数量的分隔部的换热介质供应，提高灵活性及通用性。
在一些实施例中，箱体包括顶盖、底盖以及容纳框，底盖以及顶盖在箱体的高度方向上相对设置于容纳框的两端，限位件分别与容纳框以及顶盖和底盖中的至少一者连接。
通过此方式设置，利于加工制作及组装，进一步提高结构强度。
在一些实施例中，箱体还包括连接座，连接座沿第二方向凸出于容纳框设置，连接座用于将电池安装于用电装置。
通过设置连接座，利于电池整体在其所应用的用电装置中的连接固定，保证电池的安全性能。
在一些实施例中，电池单体包括电极端子，沿高度方向，电池单体背离电极端子的表面与顶盖或底盖连接。
通过此方式设置，在电池制作时，电池单体能够立式放置于箱体内，或者，倒置放置于箱体内，能够提高电池制作成型的可选择性。
第二方面，本申请实施例提供了一种用电装置，包括前述任一实施方式中的电池，使得用电装置能够正常运行。
第三方面，本申请实施例提供了一种电池的成型方法，包括：提供偶数个电池单体，电池单体包括第一侧壁以及第二侧壁，第一侧壁为电池单体的所有外壁中面积最大的壁；将多个电池单体分组，每组包括偶数个电池单体，将同一组的各电池单体的第二侧壁相对设置，以形成两个以上电池组；将两个以上电池组层叠并整体放置于箱体内；将各组电池组的电池单体通过汇流件电连接；提供两个输出件，将两个输出件设置于第一方向的同一侧，两个输出件分别电连接于位于沿第一方向最外侧的电池组设置的两个输出端，两个输出端沿第二方向分布，以与汇流件共同形成供电通路。
在本申请实施例中，通过此成型方法制作的电池，利于加工装配，能够避免采用一个较长的输出件横跨电池组的方式形成供电通路，利于降低重量以及成本，提高电池的集成度及能量密度。
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为本申请一实施例提供的车辆的结构示意图；
图2为本申请一实施例提供的电池单体的爆炸示意图；
图3为本申请一实施例提供的电池的爆炸示意图；
图4为本申请一实施例提供的电池的局部俯视图；
图5为本申请另一实施例提供的电池的局部俯视图；
图6为本申请又一实施例提供的电池的局部俯视图；
图7为本申请一实施例提供的电池的局部爆炸示意图；
图8为本申请另一实施例提供的电池的局部爆炸示意图；
图9为本申请一实施例提供的电池的成型方法的流程示意图。
在附图中，附图并未按照实际的比例绘制。
附图中：
1000-车辆；100-电池；200-控制器；300-马达；
10-箱体；10a-开口；11-顶盖；12-底盖；13-容纳框；14-连接座；
20-电池组；21-电池单体；211-第一侧壁；212-第二侧壁；201-端盖组件；201a-电极端子；202-壳体；203-电极组件；203a-正极极耳；203b-负极极耳；
30-汇流件；31-第一汇流件；32-第二汇流件；40-输出件；50-限位件；51-容纳槽；60-输出件底座；
70-分隔部；71-联通道；72-进管；73-出管；
X-第一方向；Y-第二方向；Z-高度方向。
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。
需要注意的是，除非另有说明，本申请实施例使用的技术术语或者科学术语应当为本申请实施例所属领域技术人员所理解的通常意义。
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。
此外，技术术语“第一”、“第二”等仅用于描述目的，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。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。
在本申请实施例的描述中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
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。
申请人注意到，现有的电池内部通常包括多个电池单体，电池单体与电池单体之间需要设置多个连接片进行电连接，还需要设置一个较长的连接片用于形成总输出端。但是，此设置会造成电池内连接片排布结构复杂，且不利于加工装配，还会增加重量以及成本的问题。
为了实现能够提高电池整体的集成度以及能量密度，利于加工装配、降低重量以及成本的问题，申请人研究发现，可以对电池的结构及布置进行改进。
基于以上考虑，为了提高电池整体的集成度以及能量密度，并且，利于加工装配、降低重量以及成本的问题，申请人经过深入研究，设计了一种电池，包括箱体、电池组、汇流件以及两个输出件。电池组设置于箱体内，电池组的数量为两个以上并沿第一方向排列，每个电池组包括偶数个沿第二方向排列的电池单体，第二方向垂直于第一方向，电池单体包括相连的第一侧壁和第二侧壁，第一侧壁为电池单体的所有外壁中面积最大的壁，第一方向垂直于第一侧壁，相邻两个电池单体的第二侧壁沿第二方向相对设置；汇流件用于电连接相邻两个电池单体；两个输出件设置于第一方向的同一侧；其中，位于沿第一方向最外侧的电池组设置有两个输出端，两个输出端沿第二方向分布，两个输出件分别电连接于两个输出端，以与汇流件共同形成供电通路。
在这样的电池中，电池组设置于箱体内，以满足密封性要求。汇流件用于电连接相邻两个电池单体，位于沿第一方向最外侧的电池组设置有两个输出端，两个输出件设置于第一方向的同一侧，两个输出件分别电连接于两个输出端，以与汇流件共同形成供电通路，使得两个输出件以及两个输出端朝向同一侧，能够简化连接结构，提高箱体内空间利用率，利于加工装配，同时，能够避免采用一个较长的输出件横跨电池组的方式形成供电通路，利于降低重量以及成本，提高电池单体的紧凑度及能量密度。
本申请实施例描述的技术方案适用于使用电池的用电装置。
用电装置可以是车辆、手机、便携式设备、笔记本电脑、轮船、航 天器、电动玩具和电动工具等等。车辆可以是燃油汽车、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；航天器包括飞机、火箭、航天飞机和宇宙飞船等等；电动玩具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；电动工具包括金属切削电动工具、研磨电动工具、装配电动工具和铁道用电动工具，例如，电钻、电动砂轮机、电动扳手、电动螺丝刀、电锤、冲击电钻、混凝土振动器和电刨等等。本申请实施例对上述用电装置不做特殊限制。
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用电装置，还可以适用于所有包括使用电池的用电装置，但为描述简洁，下述实施例均以电动车辆为例进行说明。
请参阅图1，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000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1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池10为马达300供电，例如，用于车辆1000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100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
请参阅图2及图3，本申请实施例提供了一种电池100，包括箱体10、电池组20、汇流件30以及两个输出件40。电池组20设置于箱体10内，电池组20的数量为两个以上并沿第一方向X排列，每个电池组20包括偶数个第二方向Y排列的电池单体21，第二方向Y垂直于第一方向X，电池单体21包括相连的第一侧壁211和第二侧壁212，第一侧壁211为电池单体21的所有外壁中面积最大的壁，第一方向X垂直于第一侧壁211，相邻两个电池单体21的第二侧壁212沿第二方向Y相对设置。汇流件30 用于电连接相邻两个电池单体21。两个输出件40设置于第一方向X的同一侧。位于沿第一方向X最外侧的电池组21设置有两个输出端，两个输出端沿第二方向Y分布，两个输出件40分别电连接于两个输出端，以与汇流件30共同形成供电通路。
在本申请实施例中，第二方向Y垂直于第一方向X，可选地，第一方向X可以为箱体10的长度方向，相应的，第二方向Y为箱体10的宽度方向。当然，第一方向X还可以为箱体10的宽度方向，相应的，第二方向Y为箱体10的长度方向。
箱体10可以是单独的长方体或者圆柱体等简单立体结构，也可以是由长方体或者圆柱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10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。
箱体10用于容纳电池单体21，箱体10可以是多种结构，仅需保证密封性要求即可。
在电池100中，电池组20的数量为两个以上并沿第一方向X排列，每个电池组20包括偶数个沿第二方向Y排列的电池单体21。电池单体21可以是两个、四个、六个、八个、十个，也可以是多个，仅需保证电池单体21的数量为偶数个即可。若电池单体21为多个，沿第二方向Y，多个电池单体21之间可串联或并联或混联组成电池组20，多个电池组20再沿第一方向X串联或并联或混联形成一个整体，并容纳于箱体10内，混联是指多个电池单体21中既有串联又有并联。
本申请中，电池单体21可以包括锂离子电池单体21、钠离子电池单体21或镁离子电池单体21等，本申请实施例对此并不限定。电池单体21可呈扁平体、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21、方体方形电池单体21和软包电池单体21，本申请实施例对此也不限定。但为描述简洁，下述实施例均以方体方形电池单体21为例进行说明。
请参阅图2，电池单体21是指组成电池100的最小单元，电池单体 21包括有端盖组件201、壳体202和电极组件203。
端盖组件201是指盖合于壳体202的开口处以将电池单体21的内部环境隔绝于外部环境的部件。不限地，端盖组件201的形状可以与壳体202的形状相适应以配合壳体202。可选地，端盖201可以由具有一定硬度和强度的材质(如铝合金)制成，这样，端盖组件201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。端盖组件201上可以设置有如电极端子201a等的功能性部件。电极端子201a可以用于与电极组件203电连接，以用于输出或输入电池单体21的电能。在一些实施例中，端盖组件201上还可以设置有用于在电池单体21的内部压力或温度达到阈值时泄放内部压力的泄压机构。端盖组件201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，在端盖组件201的内侧还可以设置有绝缘件，绝缘件可以用于隔离壳体202内的电连接部件与端盖组件201，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202是用于配合端盖组件201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203、电解液(在图中未示出)以及其他部件。壳体202和端盖组件201可以是独立的部件，可以于壳体202上设置开口，通过在开口处使端盖组件201盖合开口以形成电池单体21的内部环境。不限地，也可以使端盖组件201和壳体202一体化，具体地，端盖组件201和壳体202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202的内部时，再使端盖组件201盖合壳体202。壳体202可以是多种形状和多种尺寸的，例如长方体形。具体地，壳体202的形状可以根据电极组件203的具体形状和尺寸大小来确定。壳体202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。
电极组件203是电池单体21中发生电化学反应的部件。壳体202内可以包含一个或更多个电极组件203。电极组件203主要由正极片和负极片卷绕或层叠放置形成，并且通常在正极片与负极片之间设有隔膜。正极 片和负极片具有活性物质的部分构成电极组件203的主体部，正极片和负极片不具有活性物质的部分各自构成极耳。正极极耳203a和负极极耳203b可以共同位于主体部的一端或是分别位于主体部的两端。在电池100的充放电过程中，正极活性物质和负极活性物质与电解液发生反应，极耳连接电极端子201a以形成电流回路。
请继续参阅图3，本申请实施例提供的电池100还包括汇流件30以及两个输出件40，其中，汇流件30用于电连接相邻两个电池单体21，两个输出件40设置于第一方向X的同一侧，位于沿第一方向X最外侧的电池组20设置有两个输出端，两个输出端沿第二方向Y分布，两个输出件40分别电连接于两个输出端，以与汇流件30共同形成供电通路。
通过此方式设置，使电池100的两个输出件40以及两个输出端朝向同一侧，能够简化连接结构，提高箱体10内空间利用率，利于加工装配，同时，能够避免采用一个较长的输出件40横跨电池组20的方式形成供电通路，利于降低重量以及成本，提高电池单体21的紧凑度及能量密度。
可选地，相邻两个电池单体21能够通过汇流件30实现电连接，可选地，汇流件30可以连接于相邻电池单体21上的电极端子201a，以实现同一电池组20中或者相邻两个电池组20中的多个电池单体21的串联或并联或混联。
位于沿第一方向X最外侧的电池组20设置有两个输出端，以保证两个输出件40能够设置于第一方向的同一侧，以简化结构，提高箱体10内空间利用率。
可选地，汇流件30可以采用铝、铜或者铁等中任一种材料制成。
可选地，输出件40可以采用铝、铜或者铁等中任一种材料制成。
可选地，输出件40可以通过冲压工艺一体成型，还可以浇筑一体成型。
两个输出端沿第二方向Y分布，使得两个输出件40在第二方向Y上间隔分布，避免相邻输出件40发生接触而发生短路等安全问题，保证电池100的安全性能。
每个电池组20包括的电池单体21的数量为偶数个，可选地，如图 5所示，每个电池组20包括的电池单体21可设置为4个，当然，如图4所示，也可以设置为6个，如图6所示，还可以设置为8个。
通过此方式设置，使汇流件30电连接相邻两个电池单体21之后，能够保证两个输出端形成在第一方向X最外侧的电池组20上沿第二方向Y分布，从而保证两个输出件40设置于第一方向X的同一侧，以避免采用一个较长的输出件40横跨电池组20的方式形成供电通路，利于降低重量以及成本，提高电池单体21的紧凑度及能量密度。
本申请实施例提供的电池100，通过设置两个输出件40，将其分别电连接于两个输出端，两个输出端位于沿第一方向X最外侧的电池组20且沿第二方向Y分布，使得两个输出件40设置于第一方向X的同一侧，能够简化连接结构，提高箱体10内空间利用率，利于加工装配，同时，能够避免采用一个较长的输出件40横跨电池组20的方式形成供电通路，利于降低重量以及成本，提高电池100的集成度及能量密度。
本申请实施例提供的电池100，采用上述结构形式，在成型时，可以先将偶数个电池单体21的第二侧壁212沿第二方向Y相对设置以形成电池组20，多个电池组20沿第一方向X排列，利用汇流件30将相邻两个电池单体21电连接且在沿第一方向X最外侧的电池组20形成两个输出端，两个输出端沿第二方向Y分布，再设置两个输出件40分别电连接于两个输出端，以与汇流件30共同形成供电通路。通过此成型方式，能够避免采用一个较长的输出件40横跨电池组20的方式形成供电通路，利于降低重量以及成本，提高电池100的集成度及能量密度，且能够简化连接结构，提高箱体10内空间利用率。
请参阅图2至图6，在一些实施例中，汇流件30包括多个第一汇流件31和多个第二汇流件32，第一汇流件31用于沿第一方向X电连接相邻两个电池单体21，第二汇流件32用于沿第二方向Y电连接相邻两个电池单体21。
通过此方式设置，能够使汇流件30有规律的进行装配，提高装配效率，并且，能够保证在第一方向X最外侧的电池组20上形成两个输出端的有效性，从而保证两个输出件40设置于第一方向X的同一侧。
可选地，第一汇流件31可电连接第一方向X上相邻电池单体21上的电极端子201a，以实现同一电池组20中多个电池单体21的串联或并联或混联。第二汇流件32可电连接第二方向Y上相邻电池单体21上的电极端子201a，以实现相邻两个电池组20中多个电池单体21的串联或并联或混联。
请继续参阅图2至图6，在一些实施例中，第二汇流件32用于电连接位于沿第一方向X最外侧的电池组20中的相邻的两个电池单体21。
通过此方式设置，除位于沿第一方向X最外侧的电池组20中的相邻电池单体21，其余的电池单体21均由第一汇流件31进行连接，能够使得沿第一方向X最外侧的电池组20形成两个输出端，从而保证两个输出件50设置于第一方向X的同一侧的有效性。
在一些实施例中，两个输出端分别设置于最外侧的电池组20中位于第二方向端部的两个电池单体21上。
通过此方式设置，能够保证两个输出件40设置于第一方向X同一侧的有效性，从而能够简化连接结构，提高箱体10内空间利用率，利于加工装配。
并且，能够减小两个输出件40的长度，利于降低重量以及成本，提高电池100的集成度度及能量密度。
在一些实施例中，电池100还包括限位件50，限位件50固定连接于箱体10内并与电池单体21的第一侧壁211抵接，限位件50用于限制电池单体21在第一方向X形变。
通过设置限位件50，以限制电池单体21在第一方向X形变，以保护电池单体21的运行安全，从而保证了电池100的安全性能。并且，能够对电池组20提供定位，利于利于电池组20准确、快速地安装于箱体10内预设位置上，避免安装时发生偏移导其他部件无法准确安装，提高了安装效率以及安装精度，从而保证电池100具有良好品质。
可选地，限位件50与箱体10可以呈一体成型结构，通过弯折、冲压等工艺形成。当然，限位件50与箱体10还可以分开提供，再通过焊接、粘接等方式连接为一体。
可选地，限位件50的数量可以为一个、两个，当然，还可以设置为多个。
限位件50能限制电池单体21在第一方向X膨胀形变，以保护电池单体21的运行安全，从而保证了电池100的安全性能。
在一些实施例中，在箱体10的高度方向Z，可以将限位件50的高度尺寸与电池单体21的高度尺寸的比值设置在2/3至11/10之间，且包括2/3、11/10两个端值，既能满足结构强度作用以及抵抗膨胀效果，又能节省空间、提高空间利用率。
请继续参阅图3至图6，在一些实施例中，电池100还包括输出件底座60，输出件底座60设置于限位件50并用于支撑输出件40。可选地，输出件底座60包括绝缘材料。
通过此方式设置，便于限位件50的安装和固定，也能避免发生接触短路，从而保证电池100的安全性能。
可选地，输出件底座60的数量可以设置为一个，两个，当然，还可以设置为多个。
在一些实施例中，限位件50上设置有容纳槽51，输出件底座60至少部分伸入容纳槽51内。
容纳槽51能够对输出件底座60起到限位作用，防止其发生位移导致电池100出现安全问题，同时，还能起到定位作用，便于安装输出件底座60，提高制作效率。
可选地，容纳槽51的数量可以为一个、两个，当然，还可以设置为多个。可选地，容纳槽51的形状可以设置与输出件底座60相匹配的形状，并使容纳槽51刚好能够放入输出件底座60，以对其进行限位，防止发生位移。
可选地，容纳槽51与输出件底座60之间的数量可以一一对应，也可以为多对一设置，即多个输出件底座60可以设置在同一个容纳槽51内。
示例性地，限位件50上设置有两个以上容纳槽51，两个及以上的容纳槽51间隔设置。
可选地，容纳槽51可以采用冲压成型，即能在限位件50上快速的形成容纳槽51，工艺简单，同时，还能节约材料，利于实现轻量化设计。
在一些实施例中，限位件50沿第二方向Y延伸，并在第二方向Y的两端与箱体10固定连接。
通过此方式设置，能够提高箱体10整体的结构强度，提高抵抗电池单体21膨胀的能力，保证安全性能。
在一些实施例中，限位件50抵接于最外侧的电池组20中的电池单体21的第一侧壁211。
通过此方式设置，能够对电池组20提供定位，利于安装效率及安装精度，从而保证电池10具有良好品质。
可选地，限位件50的数量为一个，并抵接于一组最外侧的电池组20中的电池单体21的第一侧壁211。
可选地，限位件50的数量为两个，并抵接于两组最外侧的电池组20中的电池单体21的第一侧壁211。
在一些可选地实施例中，将限位件50设置为板状结构的形式，利于减少限位件50布置空间，使箱体10能够容纳更多的电池单体21，提升箱体10内部空间利用率。
示例性的，限位件50在第二方向Y上的各个部分的横截面积都相同，利于生产制作，节省箱体10内部空间。并且，利于使限位件50的每个部分都与各电池单体21的第一侧壁211紧密贴合，以提高支撑及保护作用，提升箱体10内部空间利用率。
限位件50与电池单体21的第一侧壁211抵接，能够限制电池单体21在第一方向X上的形变，当电池单体21在充放电工作发生膨胀时，能够对电池单体21起到缓冲以及提供与膨胀力方向相反的作用力，利于提高电池单体21的运行安全，从而保证电池100的安全可靠，同时，能够对电池组20提供压紧力以实现限位固定的作用，保证电池100具有良好品质。
并且，限位件50设置于箱体10内并与电池单体21抵接设置，还能减少端板以及连接件等，利于提高安装效率及安装精度，从而简化制备工艺，降低制作成本及电池100整体重量，实现轻量化设计。
此外，通过此方式设置，限位件50还能作为箱体10的结构件以满足结构强度需求，集成度高，且使限位件50与电池单体21更加相互贴合，利于提高紧凑程度，提高箱体10空间利用率。
通过将第一侧壁211设置为电池单体21中所有外壁中面积最大的壁，以使限位件50能够更好地对电池单体21进行限位固定、抵抗膨胀形变以及提高结构强度的作用，从而更好的保证电池100的安全性能。
示例性的，限位件50可以设置为两个，两个限位件50分别设置于箱体10与电池单体21的第一侧壁211之间并抵接于第一侧壁211，既能实现对电池单体21的限位固定以及抵抗膨胀力作用，还能避免电池单体21与箱体10接触，防止发生电连接或者热失控现象，同时，限位件50还能为电池单体21提供支撑、保护作用，提升结构强度。
本申请实施例提供的电池100，采用上述结构形式，在成型时，可以先将同一组电池组20的各电池单体21的第二侧壁212相对设置并以此将相邻两个电池单体21的第二侧壁212相连接，以形成包括两个以上沿箱体10的第二方向Y分布的电池单体21的电池组20。然后，利用工具夹紧电池组20将其放入箱体10内沿第一方向X间隔设置的限位件50之间，撤销工具，电池组20中每个电池单体21反弹压紧限位件50，以使限位件50与电池单体21的第一侧壁211抵接，再封闭箱体10以完成电池100的制备。通过此成型方式，能够在满足限位固定及抵抗膨胀形变的需求下，提高箱体10空间利用率、实现轻量化设计，且制备简单、利于成型，降低成本。
在一些实施例中，限位件50内设置有多个沿第二方向Y贯穿的腔体。
可选地，多个腔体可以设置为在第一方向X上间隔分布，当然，还可设置为在高度方向Z上间隔分布。
可选地，在高度方向Z上，多个腔体可以设置为一列，当然，还可以设置多列。
示例性的，多个腔体设置为在高度方向Z上间隔分布且设置为一列，以减小限位件50在第一方向X上的延伸长度，使箱体10内具有更多 的空间容纳更多的电池单体21，利于提升电池100的能量密度。
通过在限位件50内设置有多个沿第二方向Y贯穿的腔体，当电池单体21充放电发生膨胀时，腔体内空间在第一方向X上利于被压缩以使限位件50能够在限制电池单体21的形变，缓冲并吸收电池单体21的膨胀力，从而保证电池单体21的安全性能。
并且，腔体的设置设置还能减小限位件50的重量，降低成本，从而实现轻量化设计，同时能够提高电池100整体的能量密度。
在一些实施例中，设置为板状结构体的限位件50的数量可设置为两个，两个板状结构体在第一方向X上间隔分布，电池组20夹持于两个板状结构体之间。
示例性的，板状结构体的限位件50设置为两个并在第一方向X上间隔分布，电池组20夹持于两个板状结构体之间，即板状结构体位于电池组20与箱体10的内壁之间，板状结构体抵接于第一侧壁211设置，两个板状结构体可分别用于在箱体10的第一方向X上限定电池单体21的形变，能够更好地满足限位固定以及抵抗膨胀的需求，更好地保证电池100得安全性能。
请继续参阅图3至图7，在一些实施例中，沿第一方向X，相邻两个电池组20之间设置有分隔部70，分隔部70与相邻两个电池组20中各电池单体21的第一侧壁211抵接。
通过此方式设置，使得分隔部70能够实现提高结构强度、抵抗膨胀力中的至少一者的作用。
可选地，分隔部70与相邻两个电池组20中各电池单体21的第一侧壁211抵接，其能够作为箱体10的结构件对电池单体21进行支撑，提高结构强度，并且，分隔部70还可用于抵抗抵接设置的电池单体21的膨胀力，从而保证电池100的安全性能。
在一些实施例中，可以将分隔部70在高度方向Z上的高度尺寸与电池单体21的高度尺寸的比值设置在2/3至11/10之间，且包括2/3、11/10两个端值，既能满足结构强度作用以及抵抗膨胀效果，又能节省空间、提高空间利用率。
进一步地，可选地，分隔部70还可以用于对抵接的电池单体21进行热管理，以保证电池单体21处于合适的温度范围内，从而保证电池100的安全性能。
此外，分隔部70还能够防止第一方向X上相邻两组电池组20的电池单体21直接接触，发生短路等问题。
可选地，电池组20的数量为两个，当然，还可以设置为多个。
同样的，分隔部70的数量可以设置为一个，当电池组20的数量设为两个时，两个电池组20之间夹持有一个分隔部70。当然，分隔部70还可以设置为多个，当电池组20的数量设置为多个时，每相邻两个电池组20之间均夹持有一个分隔部70。
可选地，两个以上电池组20沿第一方向X分布，每个电池组20包括两个以上沿箱体10的第二方向Y分布的电池单体21，分隔部70能够防止第一方向X上相邻两组电池组20的电池单体21直接接触，发生短路等问题。
在一些实施例中，分隔部70与相邻两个电池组20中各电池单体21的第一侧壁211粘接固定。
通过此方式设置，使分隔部70与各电池单体21的连接更加牢固，且连接稳定性好，从而保证电池100的安全可靠。并且，利用粘接的方式将分隔部70与各电池单体21连接一体，可以使得分隔部70与电池组20的各电池单体21粘接为一体后再整体装入箱体10内，利于电池100的装配成组，还能使相邻电池组20设置的更加紧凑，以提升箱体10空间利用效率。
此外，利用粘接的方式，利于降低耗材以及总体重量，利于实现电池100的轻量化设计。进一步地，还能简化制作工艺、提高生产效率以及装配效率。
可选地，分隔部70与第一侧壁211之间可设置有连接胶层，以使分隔部70与各电池单体21粘接固定。
可选地，连接胶层可以包括导热结构胶，不仅粘接效果好，还具有导热功能、耐老化、耐疲劳、耐腐蚀等特性，能够提高电池单体21与分 隔部70的连接强度以及热管理效率，使电池单体21与分隔部70之间热量传递的更加迅速。当然，连接胶层还包括双面胶等。
在一些实施例中，分隔部70用于调节电池单体21的温度，分隔部70内设置有介质流道。
可选地，可以将分隔部70可设置为换热板，换热板夹持于相邻两组电池组20之间并与第一侧壁211连接，通过此设置，以调节其相接触的电池单体21的温度，实现电池单体21的热管理需求，同时，由于第一侧壁211为电池单体21的所有外壁中面积最大的壁，能够增大换热板与电池单体21的接触面积，利于提高对电池单体21的热管理效率。
每个电池单体21可以具有两个第一侧壁211，即每个电池单体21的两个第一侧壁211分别与分隔部70连接，以更好的提高热管理效率，保证电池单体21的温度稳定。
热管理应理解为，分隔部70与电池单体21之间的热量可以在两者之间进行传递。比如，分隔部70直接与电池单体21接触，以实现接触式换热，或者分隔部70与电池单体21之间设置导热结构(如导热胶)进行换热。具体地，通过分隔部70对电池单体21散热降温或者加热，控制电池单体21的温度在合适范围内，提升电池单体21的使用寿命以及安全性能。并且，当某一个电池单体21出现热失控时，热失控电池单体21产生的热量会被与其接触的分隔部70带走，降低热失控电池单体21温度，避免相邻电池单体21也出现热失控问题，从而保证了电池单体21的安全性能。
可选地，相邻两个电池组20之间均夹持有分隔部70，可以理解为，一个分隔部70能够作用于两组电池组20并与其进行热量交换，一个电池组20能够与两个分隔部70进行热量交换，利于提升热管理效率，提高电池单体21的安全可靠性。
分隔部70内设置有介质流道，以使换热介质(如水、空气、相变材料等)能够在介质流道中流通以电池单体21进行热量交换，以使分隔部70完成对电池单体21的热管理。
通过上述设置，分隔部70还能够作为箱体10的结构件提高电池 100整体的结构强度，从而取消设置在箱体10内部的横纵梁，集成度高、降低成本、提高箱体10空间利用率，实现轻量化设计。并且，由于第一侧壁211为电池单体21的所有外壁中面积最大的壁，分隔部70能够更好的与电池单体21进行热量交换，提高热管理效率。此外，通过将分隔部70夹持于相邻两组电池组20之间，还能避免在碰撞、振动等工况条件下分隔部70出现损坏甚至漏液的情况，利于提高分隔部70的使用寿命及安全可靠，从而提高对电池单体21的热管理效率，进一步保证电池100的安全性能。
请参阅图8，在一些实施例中，电池100还包括联通道71、进管72以及出管73，各分隔部70的介质流道通过联通道71连通，进管72以及出管73与同一分隔部70的介质流道连通。
可选地，联通道71、进管72以及出管73可以设置在分隔部70沿第二方向Y延伸的同一侧，当然，也可以分别设置在分隔部70沿第二方向Y延伸的两侧。
可选地，进管72的延伸方向与出管73的延伸方向可以相同，也可以不相同。
可选地，一个分隔部70的介质流道沿第二方向Y延伸的两侧均设置有联通道71，每个分隔部70的介质流道两侧的联通道71依次连接并分别连接于进管72以及出管73，便于组装以及更换，灵活性更强。
并且，通过对联通道71、进管72以及出管73任意搭配，以适用于各种数量的分隔部70，利于提高灵活性及通用性。
可选地，分隔部70沿第二方向Y延伸的两侧可设置有连接件，以与联通道71连接，提高连接强度。
通过此方式设置，使得各分隔部70的介质流道仅通过一个进管72以及一个出管73即可满足对换热介质的需求，减小空间占用率，并且能够简化进管72以及出管73结构，利于装配以及更换，且可适用于不同数量的分隔部70的换热介质供应，提高灵活性及通用性。
在一些实施例中，箱体10上设置有通孔，进管72以及出管73分别通过通孔延伸出箱体10。
通过此方式设置，将进管72以及出管73的一端延伸至箱体10的外面，进管72能够与外部提供换热介质的设备连接，利于获取换热介质并输送至分隔部70，出管73能够与外部储存换热介质的设备连接，以排出与电池单体21进行热交换的换热介质，利于换热介质的获取以及排除，同时能够减少换热介质在箱体10内的泄漏风险，从而保证电池100的安全可靠。
可选地，外部提供换热介质的设备与存换热介质的设备可设置为同一设备，当然，也可以是单独的两个设备。
请继续参阅图3，在一些实施例中，箱体10包括顶盖11、底盖12以及容纳框13，底盖12以及顶盖11在箱体10的高度方向Z上相对设置于容纳框13的两端，限位件50分别与容纳框13以及顶盖11和底盖12中的至少一者连接。
顶盖11、底盖12以及容纳框13共同围合成容纳电池单体21的箱体10，以保证密封性要求。
可选地，容纳框13可以具有开口10a，可选地，容纳框13可以一侧设有开口10a，即容纳框13与顶盖11及底盖12中的一者一体成型，另一者封闭此开口10a并以容纳框13连接以围合形成箱体10，对电池组20进行密封保护。当然，容纳框13还可以两侧均设有开口10a，使用顶盖11与底盖12分别将两个开口10a封闭设置并与容纳框13连接并围合形成箱体10，以对电池组20进行密封保护。
为提高容纳框13与顶盖11及底盖12连接后的密封性，容纳框13与顶盖11或与底盖12之间可以设置密封件，比如，密封胶、密封圈等。
可选地，顶盖11、底盖12与容纳框13可以通过螺栓、热熔自攻螺接(Flowdrill Screws，FDS)、粘接以及焊接等方式进行连接，本申请对此不做限定。
可选地，顶盖11或者底盖12可以由具有一定高硬度和高强度的材质(如铝合金)制成，不易发生形变，具备更高的结构强度，以提升安全性能。
可选地，底盖12与容纳框13可以呈一体成型结构，当然，底盖 12与容纳框13还可以分开提供，再通过焊接、粘接等方式连接为一体。
示例性的，底盖12与容纳框13可拆卸连接，能够降低成本，且当出现损坏等问题时易于底盖12或者容纳框13的更换。
可选地，底盖12与容纳框13可以采用相同的材料制成，当然，还能采用不同的材料制成。
可选地，底盖12可以由具有一定高硬度和高强度的材质(如铝合金)制成，不易发生形变，具备更高的结构强度，以提升安全性能。
在一些实施例中，底盖12可以采用比容纳框13的材料更具有强度的材料制成，利于吸收外界的碰撞力以达到对电池100的缓冲作用，防止振动、撞击等时电池100出现变形失效，以提高电池100的安全性及可靠性，进一步提高电池100整体的结构强度，以适应多种工况条件。
可选地，底盖12还可以设有加强筋结构，能够更好的提高电池100的结构强度。
通过将限位件50分别与容纳框13以及顶盖11和底盖12中的至少一者连接，能够根据不同需求设置电池100整体的结构，提高通用性。
可选地，限位件50可以连接于容纳框13以及底盖12，当然，还可以连接于容纳框13以及顶盖11，当然，还可以连接于容纳框13、顶盖11以及底盖12。
示例性的，限位件50连接于容纳框13以及底盖12，且限位件50与顶盖11间隔设置，在装配成型时，可以先将电池单体21、限位件50与容纳框13以及底盖12连接，再将顶盖11盖合形成密封空间的箱体10。
示例性的，限位件50与顶盖11间隔设置，可选地，顶盖11的至少部分能够在高度方向Z上背离电池单体21凹陷以形成凹部，凹部与限位件50之间存在间隙，当发生碰撞、振动等其他工况条件时，此间隙能够提供缓冲作用，利于更好的对限位件50及电池单体21进行支撑以及保护，以提升安全性及可靠性。
在一些实施例中，箱体10还包括连接座14，连接座14沿第二方向Y凸出于容纳框13设置，连接座14用于将电池100安装于用电装置。
通过设置连接座14，利于电池100整体在其所应用的用电装置中 的连接固定，例如固定在车辆1000底盘等，提高连接稳定性，连接的更加牢固，同时，避免连接失效导致电池100出现安全风险问题，保证电池100的安全可靠性能。
可选地，连接座14沿第二方向Y凸出于容纳框13的一侧设置，当然，容纳框13沿第二方向Y的两侧均设置有凸出的连接座14。
请继续参阅图2及图3，在一些实施例中，电池单体21包括电极端子201a，沿高度方向Z，电池单体21背离电极端子201a的表面与顶盖11或底盖12连接。
通过此方式设置，以使电池单体21能够立式放置于箱体10内，或者，倒置放置于箱体10内，能够提高电池100制作成型的可选择性。
可选地，沿高度方向Z，电池单体21背离电极端子201a的表面与底盖12连接。可以理解为，电池单体21立式放置于箱体10内，即电极端子201a靠近顶盖11设置，使得电池单体21在装配至用电装置如车辆1000上时，电池单体21的电极端子201a朝上，避免电池100整体在遇到颠簸或者振动时，电极端子201a与底盖12刮擦导致泄压机构等结构损坏，从而保证电池100的安全性能。
可选地，沿高度方向Z，电池单体21背离电极端子201a的表面与顶盖11连接。可以理解为，电池单体21倒置放置于箱体10内，使得电池单体21在装配至用电装置如车辆1000上时，可以倒置放置，使得电池单体21的电极端子201a朝下，提高箱体10在高度方向Z上的空间利用率，并保证驾驶人员的人身安全。
在一些实施例中，电池100还包括缓冲件，缓冲件沿高度方向Z设置于电极端子201a与顶盖11或底盖12之间。
通过设置缓冲件，使得电池100整体在遇到颠簸或者振动时，可以通过缓冲件给电池单体21的电极端子201a提供缓冲，避免其与顶盖11或底盖12刮擦导致泄压机构等结构损坏，从而保证电池100的安全性能。
第二方面，本申请实施例提供了一种用电装置，包括前述任一实施方式中的电池100，电池100用于提供电能，使得用电装置能够正常运行。
请参阅图9，第三方面，本申请实施例提供了一种电池100的成型方法，包括如下步骤：
S100、提供偶数个电池单体21，电池单体21包括第一侧壁211以及第二侧壁212，第一侧壁211为电池单体21的所有外壁中面积最大的壁；
S200、将多个电池单体21分组，每组包括偶数个电池单体21，将同一组的各电池单体21的第二侧壁212相对设置，以形成两个以上电池组20；
S300、将两个以上电池组20层叠并整体放置于箱体10内。
S400、将各组电池组20的电池单体21通过汇流件30电连接；
S500、提供两个输出件40，将两个输出件40设置于第一方向X的同一侧，两个输出件40分别电连接于位于沿第一方向X最外侧的电池组20设置的两个输出端，两个输出端沿第二方向Y分布，以与汇流件30共同形成供电通路。
在步骤S100中，所提供的电池单体21可以为上述各实施例体积的电池单体21中的一者。
在步骤S200中，将多个电池单体21分组，每组包括偶数个电池单体21。可选地，每组可以包括四个电池单体21、六个电池单体21、八个电池单体21，本申请对此不作限定，仅需保证每组包括的电池单体21的数量为偶数个即可。
在步骤S300中，可以将两个以上电池组20作为整体一同放入箱体10内，可选地，可以利用工具夹紧电池组20将其放入箱体10内后，撤销工具，电池组20中每个电池单体21反弹压箱体10，以使其与箱体10过盈配合，封闭箱体10以完成电池100的制备。通过此成型方式，能够提高连接强度以及电池单体21间的紧凑性，提高箱体10空间利用率、实现轻量化设计，且制备简单、利于成型，降低成本。
在步骤S400中，汇流件30可以电连接同一组电池组20中相邻两个电池单体21，当然，还可以电连接相邻两组电池组20的相邻两个电池单体21。
可选地，在步骤S500中，两个以上输出件40设置于电池100在第一方向X的同一侧，且分别电连接于位于沿第一方向X最外侧的电池组20设置的两个输出端，两个输出端沿第二方向Y分布，以与汇流件30共同形成供电通路，通过此成型方式，能够避免采用一个较长的输出件40横跨电池组20的方式形成供电通路，利于降低重量以及成本，提高电池100的集成度及能量密度，且能够简化连接结构，提高箱体10内空间利用率。
可选地，两个输出端可以分别设置于最外侧的电池组20中位于第二方向Y端部的两个电池单体21上，利于减小两个输出件40的长度，从而降低重量以及成本，提高电池100的集成度度及能量密度。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
最后应说明的是：以上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，或者对其中部分技术特征进行等同替换，但这些修改或者替换，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精神和范围。

Claims (18)

  1. 一种电池，包括：
    箱体；
    电池组，设置于所述箱体内，所述电池组的数量为两个以上并沿第一方向排列，每个所述电池组包括偶数个沿第二方向排列的电池单体，所述第二方向垂直于所述第一方向，所述电池单体包括相连的第一侧壁和第二侧壁，所述第一侧壁为所述电池单体的所有外壁中面积最大的壁，所述第一方向垂直于所述第一侧壁，相邻两个所述电池单体的所述第二侧壁沿所述第二方向相对设置；
    汇流件，用于电连接相邻两个所述电池单体；
    两个输出件，设置于所述第一方向的同一侧；
    其中，位于沿所述第一方向最外侧的所述电池组设置有两个输出端，两个所述输出端沿所述第二方向分布，两个所述输出件分别电连接于两个所述输出端，以与所述汇流件共同形成供电通路。
  2. 根据权利要求1所述的电池，其中，所述汇流件包括多个第一汇流件和多个第二汇流件，所述第一汇流件用于沿所述第一方向电连接相邻两个所述电池单体，所述第二汇流件用于沿所述第二方向电连接相邻两个所述电池单体。
  3. 根据权利要求2所述的电池，其中，所述第二汇流件用于电连接位于沿所述第一方向最外侧的所述电池组中的相邻的两个所述电池单体。
  4. 根据权利要求1至3任意一项所述的电池，其中，两个所述输出端分别设置于所述最外侧的所述电池组中位于所述第二方向端部的两个所述电池单体上。
  5. 根据权利要求1至4任意一项所述的电池，其中，所述电池还包括限 位件，所述限位件固定连接于所述箱体内并与所述电池单体的所述第一侧壁抵接，所述限位件用于限制所述电池单体在所述第一方向形变。
  6. 根据权利要求5所述的电池，其中，所述电池还包括输出件底座，所述输出件底座设置于所述限位件并用于支撑所述输出件。
  7. 根据权利要求5或6所述的电池，其中，所述限位件沿所述第二方向延伸，并在所述第二方向的两端与所述箱体连接。
  8. 根据权利要求5至7任意一项所述的电池，其中，所述限位件抵接于所述最外侧的所述电池组中的所述电池单体的所述第一侧壁。
  9. 根据权利要求8所述的电池，其中，所述限位件内设置有多个沿所述第二方向贯穿的腔体。
  10. 根据权利要求1至9任意一项所述的电池，其中，沿所述第一方向，相邻两个所述电池组之间设置有分隔部，所述分隔部与相邻两个所述电池组中各所述电池单体的所述第一侧壁抵接。
  11. 根据权利要求10所述的电池，其中，所述分隔部与相邻两个所述电池组中各所述电池单体的所述第一侧壁粘接固定。
  12. 根据权利要求10所述的电池，其中，所述分隔部用于调节所述电池单体的温度，所述分隔部内设置有介质流道。
  13. 根据权利要求12所述的电池，其中，所述电池还包括联通道、进管以及出管，各所述分隔部的所述介质流道通过所述联通道连通，所述进管以及所述出管与同一所述分隔部的所述介质流道连通。
  14. 根据权利要求1至13任意一项所述的电池，其中，所述箱体包括顶盖、底盖以及容纳框，所述底盖以及所述顶盖在所述箱体的高度方向上相对设置于所述容纳框的两端，所述限位件分别与所述容纳框以及所述顶盖和所述底盖中的至少一者连接。
  15. 根据权利要求14所述的电池，其中，所述箱体还包括连接座，所 述连接座沿所述第二方向凸出于所述容纳框设置，所述连接座用于将所述电池安装于用电装置。
  16. 根据权利要求14所述的电池，其中，所述电池单体包括电极端子，沿所述高度方向，所述电池单体背离所述电极端子的表面与所述顶盖或所述底盖连接。
  17. 一种用电装置，其中，包括如权利要求1至16任意一项所述的电池，所述电池用于提供电能。
  18. 一种电池的成型方法，包括：
    提供偶数个电池单体，所述电池单体包括第一侧壁以及第二侧壁，第一侧壁为所述电池单体的所有外壁中面积最大的壁；
    将多个所述电池单体分组，每组包括偶数个所述电池单体，将同一组的各所述电池单体的第二侧壁相对设置，以形成两个以上电池组；
    将两个以上所述电池组层叠并整体放置于箱体内；
    将各组所述电池组的所述电池单体通过汇流件电连接；
    提供两个输出件，将两个所述输出件设置于第一方向的同一侧，两个所述输出件分别电连接于位于沿所述第一方向最外侧的所述电池组设置的两个输出端，两个所述输出端沿第二方向分布，以与所述汇流件共同形成供电通路。
PCT/CN2022/111365 2022-08-10 2022-08-10 电池、用电装置以及电池的成型方法 Ceased WO2024031418A1 (zh)

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