WO2023070290A1 - 电池单体、电池、用电设备、制造电池单体的方法和设备 - Google Patents

电池单体、电池、用电设备、制造电池单体的方法和设备 Download PDF

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Publication number
WO2023070290A1
WO2023070290A1 PCT/CN2021/126220 CN2021126220W WO2023070290A1 WO 2023070290 A1 WO2023070290 A1 WO 2023070290A1 CN 2021126220 W CN2021126220 W CN 2021126220W WO 2023070290 A1 WO2023070290 A1 WO 2023070290A1
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WO
WIPO (PCT)
Prior art keywords
bracket
battery cell
electrode assembly
battery
electrode
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/CN2021/126220
Other languages
English (en)
French (fr)
Inventor
林蹬华
陈新祥
郭志君
郑于炼
王鹏
金海族
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 PCT/CN2021/126220 priority Critical patent/WO2023070290A1/zh
Priority to EP21961673.7A priority patent/EP4333172A4/en
Priority to CN202180097327.3A priority patent/CN117203830A/zh
Priority to CN202123121059.0U priority patent/CN216529007U/zh
Publication of WO2023070290A1 publication Critical patent/WO2023070290A1/zh
Priority to US18/533,190 priority patent/US20240106084A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
    • H01M50/474—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H01M50/555—Window-shaped terminals
    • 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
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery cell, a battery, an electrical device, and a method and device for manufacturing a battery cell.
  • Energy saving and emission reduction is the key to the sustainable development of the automobile industry.
  • electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy saving and environmental protection.
  • battery technology is an important factor related to its development.
  • Batteries are installed in electrical equipment, for example, in vehicles.
  • the movement of electric equipment such as vehicles will cause a certain impact on the battery. If the stability of the battery cells in the battery is not good, the impact will have an adverse effect on the performance of the battery cells and may cause safety issues. Therefore, how to improve the internal structure of the battery cell to enhance its stability has become an urgent technical problem in battery technology.
  • the present application provides a battery cell, a battery, an electrical device, a method and equipment for manufacturing the battery cell, which improves the internal structure of the battery cell and improves the structural stability of the battery cell.
  • a battery cell comprising: a case with an opening; an electrode assembly accommodated in the case; an end cover covering the opening and having an electrode terminal; and a bracket provided with In the housing, the bracket and the electrode assembly are arranged along a first direction, the bracket and the end cap are arranged along a second direction, the first direction is perpendicular to the second direction, and the The bracket abuts against the electrode assembly in a first direction to limit the electrode assembly.
  • the housing of the battery cell is provided with an electrode assembly and a bracket arranged along a first direction, and the end cap of the battery cell covers the housing from a second direction to accommodate the bracket and the electrode assembly in the housing.
  • the bracket can make the structure of the battery cell more stable, and since the bracket and the electrode assembly are offset along the first direction, the electrode assembly can be limited to prevent the electrode assembly from moving in the first direction, and the battery cell is improved. structural stability.
  • a tab is provided at an end of the electrode assembly along the first direction, and the electrode terminal and the tab are provided along the second direction.
  • the electrode terminal and the tab of the electrode assembly are arranged along the second direction, and the electrode terminal and the tab can share the space in the second direction, which reduces the waste of space in the first direction, thereby making the structure of the battery cell more compact.
  • a receiving groove is provided on a side of the bracket facing the end cover, and the receiving groove is used to accommodate part of the tabs.
  • the bracket is provided with a receiving groove for accommodating the tabs, when the tabs are located in the receiving slots, the tabs and the bracket can share the space without taking up extra space, making the structure of the battery cell more compact and improving the battery life. Space utilization of battery cells.
  • an avoidance space is designed in the area corresponding to the receiving groove on the bracket to accommodate the part of the tab against the bracket, which can Avoid damage to the tabs and increase the service life of the battery cells.
  • the bracket further includes a blocking part, and the blocking part is used to isolate the tab from the housing in the first direction, so as to prevent the contact between the tab and the housing. Short.
  • the battery cell further includes: a connection member, the connection member is used to electrically connect the tab of the electrode assembly to the electrode terminal, and the connection member abuts against the electrode terminal.
  • the bracket is close to the end surface of the end cover.
  • the connecting member can not only realize the electrical connection between the tabs of the electrode assembly and the electrode terminals, but also abut against the end face of the bracket near the end cover from the second direction, thereby preventing the bracket from moving in the second direction and improving the battery life.
  • a protruding portion protruding toward the end cap is provided on the end surface of the bracket facing the end cap, and the protruding portion is used for isolating the connecting member from the the housing.
  • the raised part on the bracket can isolate the connecting member from the casing of the battery cell, so as to prevent overlapping between the connecting member and the casing, and improve the safety of the battery cell.
  • the battery cell further includes: a first insulator, disposed between the connection member and the end cover, for isolating the end cover and the connection member, so The first insulator is clamped and connected to the bracket.
  • the first insulator can isolate the end cover and the connecting member, avoid short-circuiting between the end cover and the connecting member, and improve the safety of the battery cell, and the first insulator is snapped and connected with the bracket, which can improve the safety of the internal structure of the battery cell. stability.
  • the first insulator is provided with buckles, and the bracket is provided with notches, and the buckles are engaged with the notches to engage the first insulators. connected to the bracket.
  • Connecting the buckle of the first insulator with the notch of the bracket not only enables the first insulator to be fixed on the bracket, but also allows the bracket to be flexibly disassembled.
  • avoidance holes are provided on the bracket, and the escape holes are arranged corresponding to the liquid injection holes of the battery cells and communicate with the interior of the battery cells.
  • the setting of the avoidance hole can prevent the support from affecting the liquid injection process of the battery cells.
  • the liquid injection hole is disposed on the first wall of the housing away from the end cover, so as to facilitate the liquid injection space required for the liquid injection process.
  • a battery including: the first aspect and the battery cell in any possible implementation manner of the first aspect.
  • an electric device including: the first aspect and the battery cell in any possible implementation manner of the first aspect, where the battery cell is used to provide electric energy.
  • a method for manufacturing a battery cell comprising: providing an electrode assembly; providing an end cover, the end cover is provided with an electrode terminal; providing a casing, the casing has an opening; providing a bracket; The bracket and the electrode assembly are arranged along a first direction, the bracket and the end cap are arranged along a second direction, the first direction is perpendicular to the second direction, and the bracket and the The electrode assembly abuts against in a first direction to limit the electrode assembly; the housing is covered with the end cover to form a cavity for accommodating the electrode assembly and the bracket.
  • a device for manufacturing battery cells including: providing a module for providing a housing, an electrode assembly, an end cover, and a bracket, the end cover is provided with an electrode terminal, and the housing
  • the body has an opening; the module is assembled, the bracket and the electrode assembly are arranged in a first direction, the bracket and the end cap are arranged in a second direction, and the first direction is perpendicular to the second direction , make the bracket abut against the electrode assembly in a first direction to limit the electrode assembly, cover the end cover on the opening to accommodate the electrode assembly and the bracket in In the space enclosed by the end cover and the housing.
  • Fig. 1 is a schematic structural view of a vehicle disclosed in an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of a battery disclosed in an embodiment of the present application.
  • Fig. 3 is an exploded view of a battery cell disclosed in an embodiment of the present application.
  • Fig. 4 is a top view of a battery cell disclosed in an embodiment of the present application.
  • Fig. 5 is a partial cross-sectional view of the battery cell in Fig. 4 along the B-B direction;
  • Fig. 6 is a partial cross-sectional view of the battery cell in Fig. 4 along the F-F direction;
  • Fig. 7 is a partial cross-sectional view of the battery cell in Fig. 4 along the C-C direction;
  • Fig. 8 is a schematic diagram of the positional relationship between the connecting member and the bracket disclosed in an embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a first insulating member disclosed in an embodiment of the present application.
  • Fig. 10 is a schematic diagram of the assembly of the first insulator and the bracket disclosed in an embodiment of the present application;
  • Fig. 11 is a schematic flowchart of a method for manufacturing a battery according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a device for manufacturing batteries according to an embodiment of the present application.
  • a battery refers to a physical module including one or more battery cells to provide electrical energy.
  • the battery mentioned in this application may include a battery module or a battery pack, and the like.
  • Batteries generally include a case for enclosing one or more battery cells. The box can prevent liquid or other foreign objects from affecting the charging or discharging of the battery cells.
  • the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, which are not limited in the embodiments of the present application.
  • a battery cell may also be referred to as a battery cell.
  • the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator.
  • a battery cell works primarily by moving metal ions between the positive and negative plates.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector without the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer.
  • the current collector coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector coated with the negative electrode active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon. In order to ensure that a large current is passed without fusing, the number of positive pole tabs is multiple and stacked together, and the number of negative pole tabs is multiple and stacked together.
  • the material of the diaphragm can be polypropylene (Polypropylene, PP) or polyethylene (Polyethylene, PE).
  • the electrode assembly may be a wound structure or a laminated structure, which is not limited in the embodiment of the present application.
  • multiple battery cells in the battery can be connected in series, parallel or mixed, where the mixed connection refers to a mixture of series and parallel.
  • multiple battery cells can be connected in series, parallel or mixed to form a battery module, and then multiple battery modules can be connected in series, parallel or mixed to form a battery. That is to say, multiple battery cells can directly form a battery, or form a battery module first, and then form a battery from the battery module.
  • the battery is further arranged in the electric device to provide electric energy for the electric device.
  • a signal transmission component may also be included.
  • the signal transmission component can be used to transmit signals such as the voltage and/or temperature of the battery cells.
  • the signal transmission component may include a confluence part, which is used to realize electrical connection among a plurality of battery cells, such as parallel connection, series connection or hybrid connection.
  • the bus component can realize the electrical connection between the battery cells by connecting the electrode terminals of the battery cells.
  • the bus member may be fixed to the electrode terminal of the battery cell by welding.
  • the bussing part transmits the voltage of the battery cells, and a higher voltage will be obtained after multiple battery cells are connected in series.
  • the electrical connection formed by the bussing part can also be called a "high voltage connection".
  • the signal transmission assembly may also include a sensor device for sensing the state of the battery cell, for example, the sensor device may be used to measure and transmit sensor signals such as temperature and state of charge of the battery cell.
  • the electrical connection member in the battery may include a current flow component and/or a sensor device.
  • Bus components and sensing devices can be encapsulated in an insulating layer to form a signal transmission assembly.
  • the signal transmission component can be used to transmit the voltage of the battery cell and/or the sensing signal.
  • the signal transmission component does not have an insulating layer at the connection with the electrode terminal of the battery cell, that is, the insulating layer has an opening here, so as to be connected with the electrode terminal of the battery cell.
  • the present application provides a technical solution.
  • the structure of the battery cell is made more stable, and by offsetting the bracket against the electrode assembly, the position of the electrode assembly is realized at the same time.
  • the structural stability of the battery cell is improved.
  • batteries such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include Airplanes, rockets, space shuttles and spaceships, etc.
  • FIG. 1 it is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application.
  • the vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or Extended range cars, etc.
  • a motor 40 , a controller 30 and a battery 10 can be arranged inside the vehicle 1 , and the controller 30 is used to control the battery 10 to supply power to the motor 40 .
  • the battery 10 may be provided at the bottom or front or rear of the vehicle 1 .
  • the battery 10 can be used for power supply of the vehicle 1 , for example, the battery 10 can be used as an operating power source of the vehicle 1 , for a circuit system of the vehicle 1 , for example, for starting, navigating and running power requirements of the vehicle 1 .
  • the battery 10 can not only be used as an operating power source for the vehicle 1 , but can also be used as a driving power source for the vehicle 1 , replacing or partially replacing fuel oil or natural gas to provide driving power for the vehicle 1 .
  • the battery 10 may include a plurality of battery cells.
  • FIG. 2 which is a schematic structural diagram of a battery 10 according to an embodiment of the present application, the battery 10 may include a plurality of battery cells 20 .
  • the battery 10 may further include a box body 11 , the inside of which is a hollow structure, and a plurality of battery cells 20 are accommodated in the box body 11 .
  • the box body 11 may include two parts, here referred to as a first part 111 and a second part 112 respectively, and the first part 111 and the second part 112 are fastened together.
  • the shapes of the first part 111 and the second part 112 can be determined according to the combined shape of a plurality of battery cells 20 , and at least one of the first part 111 and the second part 112 has an opening.
  • both the first part 111 and the second part 112 can be hollow cuboids and only one face is an opening face, the opening of the first part 111 and the opening of the second part 112 are arranged oppositely, and the first part 111 and the opening of the second part 112 are arranged oppositely.
  • the second parts 112 are interlocked to form the box body 11 with a closed chamber. For another example, different from what is shown in FIG.
  • only one of the first part 111 and the second part 112 may be a hollow cuboid with an opening, while the other may be a plate to cover the opening.
  • the second part 112 is a hollow cuboid with only one face as an open face
  • the first part 111 is a plate-shaped example, so the first part 111 is covered at the opening of the second part 112 to form a box with a closed chamber , the cavity can be used to accommodate a plurality of battery cells 20 .
  • a plurality of battery cells 20 are combined in parallel, in series or in parallel and placed in the box 11 formed by fastening the first part 111 and the second part 112 .
  • the battery 10 may also include other structures, which will not be repeated here.
  • the battery 10 may further include a confluence component (not shown in the figure), which is used to realize electrical connection among a plurality of battery cells 20 , such as parallel connection, series connection or mixed connection.
  • the current-combining component can realize the electrical connection between the battery cells 20 by connecting the electrode terminals of the battery cells 20 .
  • the bus member may be fixed to the electrode terminal of the battery cell 20 by welding. The electric energy of the plurality of battery cells 20 can be further drawn out through the box through the conductive mechanism.
  • the conductive mechanism may also belong to the busbar.
  • the number of battery cells 20 can be set to any value.
  • a plurality of battery cells 20 can be connected in series, in parallel or in parallel to achieve greater capacity or power. Since the number of battery cells 20 included in each battery 10 may be large, for the convenience of installation, the battery cells 20 may be arranged in groups, and each group of battery cells 20 constitutes a battery module. The number of battery cells 20 included in the battery module is not limited and can be set according to requirements.
  • a battery may include a plurality of battery modules, which may be connected in series, in parallel or in parallel.
  • the battery cell 20 includes one or more electrode assemblies 22 , a casing 211 and an end cap 212 .
  • the housing 211 and end cap 212 form an enclosure or battery compartment.
  • the walls of the casing 211 and the end caps 212 are called the walls of the battery cell 20 , wherein for the rectangular parallelepiped battery cell 20 , the walls of the casing 211 include a bottom wall and four side walls.
  • the casing 211 depends on the combined shape of one or more electrode assemblies 22.
  • the casing 211 can be a hollow cuboid, cube, or cylinder, and the cuboid battery cell 20 can be further adjusted by adjusting its length and thickness. Blade-shaped battery cells 20 are formed.
  • One of the surfaces of the casing 211 has an opening so that one or more electrode assemblies 22 can be placed in the casing 211.
  • the housing 211 is a hollow cuboid, cube, or blade shape
  • one of the planes of the housing 211 is an open surface, that is, the plane does not have a wall so that the inside and outside of the housing 211 communicate.
  • the end surface of the casing 211 is an open surface, that is, the end surface does not have a wall so that the inside and outside of the casing 211 communicate.
  • the end cap 212 covers the opening and is connected with the casing 211 to form a closed cavity for placing the electrode assembly 22 .
  • the casing 211 is filled with electrolyte, such as electrolytic solution.
  • the battery cell 20 may further include an electrode terminal 214 which may be disposed on the end cap 212 .
  • the end cap 212 is usually in the shape of a flat plate, and the electrode terminal 214 is fixed on the flat surface of the end cap 212.
  • the electrode terminal 214 can be a positive electrode terminal or a negative electrode terminal.
  • the electrode terminal 214 is correspondingly provided with a connection member 23 , or also called a current collecting member 23 , which is located between the end cap 212 and the electrode assembly 22 , and is used for electrically connecting the electrode assembly 22 and the electrode terminal 214 .
  • Each electrode assembly 22 has a tab 221, which can be a first tab 221a or a second tab 221b, and the polarities of the first tab 221a and the second tab 221b are opposite.
  • the tab 221 of the electrode assembly 22 may be connected to the electrode terminal 214 through the connection member 23 .
  • the electrode terminal 214 may be a positive terminal; when the tab 221 is a negative tab, the electrode terminal 214 may be a negative terminal.
  • one or more electrode assemblies 22 may be provided according to actual usage requirements. For example, as shown in FIG. 3 , one electrode assembly 22 is provided in the battery cell 20 .
  • the plurality of battery cells 20 included in the battery 10 in the embodiment of the present application may be arranged and arranged in any direction in the box 11 .
  • a plurality of battery cells 20 may be arranged and installed in the box according to the thickness direction of the battery cells 20 .
  • Two battery cells 20 are taken as an example in FIG. 2 .
  • the battery 10 may include other numbers of battery cells 20 .
  • FIG. 4 is a top view of the end cover 212 side of the battery cell 20
  • FIG. 5 is a partial cross-sectional view of the battery cell 20 in FIG. 4 along the B-B direction
  • FIG. 6 is a partial cross-sectional view of the battery cell 20 in FIG. 4 along the F-F direction.
  • the casing 211 has an opening
  • the electrode assembly 22 is accommodated in the casing 211
  • the end cap 212 covers the opening.
  • Electrode terminals 214 are also disposed on the end cap 212 . As shown in FIG.
  • the battery cell 20 further includes a bracket 24, which is arranged in the housing 211, the bracket 24 and the electrode assembly 22 are arranged along the first direction X, and the bracket 24 and the end cap 212 are arranged along the second direction Y. It is set that the first direction X is perpendicular to the second direction Y. Wherein, the bracket 24 abuts against the electrode assembly 22 in the first direction X to limit the electrode assembly 22 .
  • the bracket 24 can be an insulating bracket, for example, so as to limit the electrode assembly 22 and prevent the electrode assembly 22 from short-circuiting with other components in the battery cell 20 .
  • the aforementioned arrangement of the bracket 24 and the electrode assembly 22 along the first direction X may mean that all or part of the electrode assembly 22 and the bracket 24 are arranged along the first direction X.
  • the bracket 24 and part of the electrode assembly 22 are aligned along the first direction X, the bracket 24 and the part of the electrode assembly 22 abut in the first direction X, and the electrode assembly 22 can still be limited.
  • the electrode assembly 22 includes an electrode body 222 and a tab 221 .
  • the bracket 24 and the electrode body 222 are arranged along the first direction X, while the tab 221 is not arranged along the first direction X with the bracket 24 , but partially overlaps with the bracket 24 .
  • the electrode assembly 22 includes a first pole piece, a second pole piece and a spacer, the polarity of the first pole piece and the second pole piece are opposite, and the spacer is used for insulating and isolating the first pole piece and the second pole piece.
  • the first pole piece includes a first coated area coated with the first active material layer and a first uncoated area not coated with the first active material layer
  • the second pole piece includes a first coated area coated with the second active material layer.
  • the electrode body 222 includes a first coated area, a second coated area and a separator
  • the tab 211 includes a first uncoated area and a second uncoated area
  • the first uncoated area may be a first tab
  • the second uncoated region may be a second tab
  • the polarity of the first tab and the second tab are opposite.
  • the electrode assembly 22 can be flat, and the outer surface of the electrode assembly 22 includes two flat surfaces arranged along the second direction Y; or, the electrode assembly 22 can be a wound structure, the first pole piece and The second pole piece is wound around the winding axis to form a winding structure, and the winding axis is consistent with the first direction X; alternatively, the electrode assembly 22 can be a laminated structure, with multiple first pole pieces and multiple second poles The sheets are alternately stacked along the second direction Y; or, the electrode assembly 22 adopts a stacked sheet structure, the first pole piece is bent continuously and includes multiple stacked sections and multiple bent sections, multiple stacked sections and multiple second pole pieces The pole pieces are stacked alternately along the second direction Y, and each bent section is used to connect two adjacent stacked sections.
  • the bracket 24 and the electrode assembly 22 are aligned in the first direction X, which may mean that the bracket 24 and the electrode body 222 are aligned in the first direction X.
  • the tab 221 of the electrode assembly 22 and the bracket 24 may at least partially overlap in the second direction Y.
  • the end cover 212 may be, for example, the wall with the largest area among the walls of the battery cell 20 .
  • the electrode assembly includes a flat surface along the second direction Y, the flat surface of the electrode assembly 22 is substantially parallel to the end cover 212 .
  • the electrode assembly 22 and the bracket 24 arranged along the first direction X are arranged in the casing 211 of the battery cell 20, and the end cap 212 of the battery cell is covered with the casing 211 in the second direction Y, so that the bracket 24 and the electrode assembly 22 are accommodated in the casing 211, so that the structure of the battery cell 20 is more stable. And because the bracket 24 and the electrode assembly 22 are offset along the first direction X, the electrode assembly 22 can be limited, preventing the electrode assembly 22 from moving in the first direction X, and improving the structural stability of the battery cell 20 .
  • a tab 221 is provided at the end of the electrode assembly 22 along the first direction X, and the electrode terminal 214 of the battery cell 20 is connected to the tab 221 of the electrode assembly 22 along the second direction. Y settings. In this way, the electrode terminal 214 and the tab 221 can share the space in the second direction Y, which reduces the waste of space in the first direction X, thereby making the structure of the battery cell 20 more compact.
  • the electrode terminals 214 on the end cap 212 may protrude along the second direction Y, for example, and protrude from the electrode lead-out hole 2121 of the end cap 212 .
  • a receiving groove 241 is provided on a side of the bracket 24 facing the end cover 212 , and the receiving groove 241 is used to accommodate a part of the tab 221 .
  • the bracket 24 is provided with a receiving groove 241 for accommodating the tab 221 .
  • the tab 221 is located in the slot 241 , the tab 221 and the bracket 24 can share space without taking up extra space.
  • the structure of the battery cell 20 is made more compact, and the space utilization rate of the battery cell 20 is improved.
  • part of the tab 221 may be damaged, for example, the gathered portion 2211 of the tab 221 may be damaged.
  • the first direction X there is a width difference between the area on the bracket 24 that abuts against the electrode assembly 22 and the area corresponding to the receiving groove 241 on the bracket 24, so that there is a gap between the bracket 24 and the electrode assembly.
  • a avoidance space 242 is formed between 22, and the avoidance space 242 is used to accommodate part of the tab 221.
  • the avoidance space 242 is located between the bracket 24 and the electrode assembly 22 in the first direction X, and the gathered portion 2211 of the tab 221 is housed inside it, thereby avoiding damage to the gathered portion 2211 of the tab 221 . damage and improve the service life of the battery cell 20.
  • the bracket 24 further includes a blocking portion 246 for isolating the tab 221 and the housing in the first direction X.
  • the blocking portion 246 may be located on a side of the bracket 24 close to the housing 211 in the first direction X, so as to prevent a short circuit between the tab 221 and the housing 211 .
  • two ends of the bracket 24 along the third direction and the blocking portion 246 are disposed around the receiving groove 241 .
  • FIG. 7 is a partial cross-sectional view of the battery cell 20 in FIG. It is used to electrically connect the tab 221 of the electrode assembly 22 with the electrode terminal 214 .
  • the connecting member 23 can abut against an end surface of the bracket 24 close to the end cover 212 .
  • the connecting member 23 can not only realize the electrical connection between the tab 221 of the electrode assembly 22 and the electrode terminal 214, but also abut against the end surface of the bracket 24 close to the end cover 212 in the second direction Y, so as to prevent the bracket 24 from The movement in the second direction Y improves the structural stability of the battery cell 20 .
  • the connecting member 23 can abut against the two ends of the bracket 24 along the third direction Z, and the first direction X and the second direction Y are perpendicular to the third direction Z. , this way can further improve the stability of the bracket 24 in the battery cell 20 .
  • openings 231 corresponding to the electrode terminals 214 may be provided on the connecting member 23, and the electrode terminals 214 pass through the corresponding openings 231, and finally protrude from the ends. Cover 212.
  • a protruding portion 243 protruding toward the end cap 212 is provided on the end surface of the bracket 24 facing the end cap 212 , and the protruding portion 243 is used for isolating the connecting member 23 and the housing 211 .
  • the protruding portion 243 is located on the side of the bracket 24 close to the housing 211 in the first direction X, and surrounds the part of the connecting member 23 that may be in contact with the housing 211, so that the connection The isolation between the member 23 and the casing 211 of the battery cell 20 can prevent short circuit between the connecting member 23 and the casing 211 and improve the safety of the battery cell 20 .
  • the battery cell 20 further includes a first insulator 25 disposed between the connection member 23 and the end cap 212 for isolating the end cap 212 from the connection. member 23, thereby avoiding a short circuit between the end cover 212 and the connecting member 23, and improving the safety of the battery cell.
  • the first insulator 25 and the bracket 24 may be connected, for example, by clamping or the like.
  • FIG. 9 and FIG. 10 show a possible structure of the first insulator 25 .
  • the first insulator 25 is provided with buckles 251 .
  • the bracket 24 is provided with a notch 244 , and the buckle 251 on the first insulator 25 is engaged with the notch 244 on the bracket 24 to realize the locking between the first insulator 25 and the bracket 24 . connection.
  • This clamping manner not only realizes the fixing between the first insulating member 25 and the bracket 24 , but also facilitates the flexible disassembly of the bracket 24 .
  • the buckle 251 of the first insulator 25 protrudes along the second direction Y, and the buckle 251 can be put into the notch 244 from the first direction X, so as to be snapped together with the notch 244 in the second direction Y, so as to The bracket 24 is fixed to the first insulator 25 .
  • openings 252 corresponding to the electrode terminals 214 may be provided on the first insulator 25 to pass through the electrode terminals 214 .
  • the battery cell 20 further includes a sealing ring 26 for forming a seal between the electrode terminal 214 and the end cover 212 .
  • the sealing ring 26 can be ring-shaped, for example, and is inserted into the electrode terminal 214 from the second direction Y.
  • the battery cell 20 further includes a second insulating member 27 for isolating the end cap 212 from the riveting block 28 .
  • the riveting block 28 is used for fixing the electrode terminal 214 protruding from the end cover 212 .
  • an opening 271 corresponding to the electrode terminal 214 may be disposed on the second insulating member 27 , and the electrode terminal 214 passes through the corresponding opening 271 to be connected to the riveting block 28 .
  • the bracket 24 is provided with an avoidance hole 245 , and the avoidance hole 245 is arranged corresponding to the liquid injection hole of the battery cell 20 and communicates with the interior of the battery cell 20 .
  • the setting of the avoidance hole can prevent the support from affecting the liquid injection process of the battery cells.
  • the liquid injection hole 245 may be provided, for example, on the housing 211 away from the first wall 2111 of the end cover 222 , and the housing 211 is located away from the first wall 2111 of the end cover 222 . Less, convenient for the liquid injection space required for the liquid injection process.
  • the present application also provides a battery 10, which includes the battery cells 20 in the foregoing embodiments.
  • An embodiment of the present application also provides an electric device, which may include the battery cell 20 in each of the foregoing embodiments, so as to provide electric energy for the electric device.
  • the powered device may be a vehicle, ship or spacecraft.
  • the battery 10 of the foregoing embodiment By arranging the battery 10 of the foregoing embodiment in the electrical equipment, since the battery cell 20 in the battery 10 is provided with a bracket, and the bracket is opposed to the electrode assembly, the structure of the battery cell is more stable, and the opposite electrode is realized.
  • the limitation of components improves the structural stability of battery cells.
  • FIG. 11 shows a schematic flowchart of a method 300 for manufacturing a battery according to an embodiment of the present application. As shown in Figure 11, the method 300 may include:
  • Step 310 providing the electrode assembly 22;
  • Step 320 providing the end cover 212, the end cover 212 is provided with the electrode terminal 214;
  • Step 330 providing the casing 211, the casing 211 has an opening;
  • Step 340 providing the bracket 24;
  • Step 350 arrange the bracket 24 and the electrode assembly 22 along the first direction X, arrange the bracket 24 and the end cap 212 along the second direction Y, the first direction X is perpendicular to the second direction Y, and make the bracket 24 and the electrode assembly 22 offset in the first direction X to limit the position of the electrode assembly 22;
  • Step 360 Cover the casing 211 and the end cap 212 to form a cavity for accommodating the electrode assembly 22 and the bracket 24 .
  • step 330 and step 340 can be exchanged, and the order of step 340 and step 320 can also be exchanged.
  • FIG. 12 shows a schematic block diagram of an apparatus 400 for manufacturing a battery according to an embodiment of the present application.
  • the equipment 400 for manufacturing batteries may include:
  • the providing module 410 is used to provide the housing 211, the electrode assembly 22, the end cover 212 and the bracket 24, the end cover 212 is provided with the electrode terminal 214, and the housing 211 has an opening;
  • Assembly module 420 the assembly module 420 is used to arrange the bracket 24 and the electrode assembly 22 along the first direction X, the bracket 24 and the end cap 212 to arrange along the second direction Y, the first direction X is perpendicular to the second direction Y, And make the bracket 24 and the electrode assembly 22 contact in the first direction X to limit the electrode assembly 22, and cover the end cover 212 on the opening of the housing 211 to accommodate the electrode assembly 22 and the bracket 24 in the end cover 212 and the cavity enclosed by the housing 211.

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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)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请实施例提供一种电池单体、电池、用电设备、制造电池单体的方法和设备。所述电池单体包括：壳体，具有开口；电极组件，容纳于所述壳体内；端盖，盖合所述开口，并设置有电极端子；以及，支架，设置于所述壳体内，所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，所述支架与所述电极组件在第一方向上相抵，以对所述电极组件进行限位。该支架能够使电池单体的结构更加稳固，并且由于该支架与电极组件沿第一方向相抵，因此能够对电极组件进行限位，防止电极组件在第一方向上窜动，提升了电池单体的结构稳定性。

Description

电池单体、电池、用电设备、制造电池单体的方法和设备 技术领域
本申请涉及电池技术领域，特别是涉及一种电池单体、电池、用电设备、制造电池单体的方法和设备。
背景技术
节能减排是汽车产业可持续发展的关键。在这种情况下，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。而对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
电池安装于用电设备，例如，安装于车辆。车辆等用电设备的运动会对电池造成一定的冲击，若电池中的电池单体的稳定性不佳，则该冲击会对电池单体的性能产生不利影响且可能会引发安全问题。因此，如何改善电池单体的内部结构，以提升其稳定性，成为电池技术中的一个亟待解决的技术问题。
发明内容
本申请提供一种电池单体、电池、用电设备、制造电池单体的方法和设备，改善了电池单体的内部结构，提升了电池单体的结构稳定性。
第一方面，提供了一种电池单体，包括：壳体，具有开口；电极组件，容纳于所述壳体内；端盖，盖合所述开口，并设置有电极端子；以及，支架，设置于所述壳体内，所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，所述支架与所述电极组件在第一方向上相抵，以对所述电极组件进行限位。
基于该技术方案，电池单体的壳体内设置有沿第一方向排列的电极组件和支架，电池单体的端盖从第二方向盖合壳体，以将支架和电极组件容纳于壳体内。该支架能够使电池单体的结构更加稳固，并且由于该支架与电极组件沿第一方向相抵，因此能 够对电极组件进行限位，防止电极组件在第一方向上窜动，提升了电池单体的结构稳定性。
在一种可能的实现方式中，所述电极组件沿所述第一方向的端部设置有极耳，所述电极端子与所述极耳沿所述第二方向设置。
电极端子与电极组件的极耳沿第二方向设置，电极端子与极耳可以共用第二方向上的空间，减少了第一方向上空间的浪费，从而使电池单体的结构更加紧凑。
在一种可能的实现方式中，所述支架朝向所述端盖的一侧设置有容纳槽，所述容纳槽用于容纳部分所述极耳。
由于该支架上设置有用于容纳极耳的容纳槽，当极耳位于该容纳槽内时，极耳与支架可以共用空间，而不占用多余的空间，使电池单体的结构更加紧凑，提高了电池单体的空间利用率。
在一种可能的实现方式中，在所述第一方向上，所述支架上与所述电极组件相抵的区域与所述支架上所述容纳槽对应的区域之间具有宽度差，以在所述支架与所述电极组件之间形成避让空间，所述避让空间用于容纳部分所述极耳。
当该支架与电极组件沿第一方向相抵时，可能会对部分极耳造成损伤，为此，在支架上该容纳槽对应的区域设计避让空间，以容纳极耳上与支架相抵的部分，可以避免对极耳造成损伤，提高电池单体的使用寿命。
在一种可能的实现方式中，所述支架还包括阻挡部，所述阻挡部用于在所述第一方向上隔离所述极耳与所述壳体，从而防止极耳与壳体之间短接。
在一种可能的实现方式中，所述电池单体还包括：连接构件，所述连接构件用于将所述电极组件的极耳与所述电极端子电连接，所述连接构件抵接于所述支架靠近所述端盖的端面。
连接构件不仅可以实现电极组件的极耳和电极端子之间的电连接，还可以从第二方向抵接在支架的靠近端盖的端面，从而防止支架在第二方向上窜动，提升了电池单体的结构稳定性。
在一种可能的实现方式中，所述支架的朝向所述端盖的端面上，设置有朝向所述端盖凸出的凸起部，所述凸起部用于隔离所述连接构件和所述壳体。
支架上的凸起部可以将连接构件与电池单体的壳体隔离，以防止连接构件与壳体之间的搭接，提高电池单体的安全性。
在一种可能的实现方式中，所述电池单体还包括：第一绝缘件，设置于所述连接构件与所述端盖之间，用于隔离所述端盖和所述连接构件，所述第一绝缘件与所述支架卡接连接。
第一绝缘件能够隔离端盖和连接构件，避免端盖和连接构件之间的短接，提高电池单体的安全性，第一绝缘件与支架卡接连接，可以提高电池单体内部结构的稳定性。
在一种可能的实现方式中，所述第一绝缘件上设置有卡扣，所述支架上设置有缺口，所述卡扣与所述缺口卡接，以将所述第一绝缘件卡接连接在所述支架上。
将第一绝缘件的卡扣与支架的缺口卡接，不仅能够使第一绝缘件固定在支架上，还使支架能够灵活拆卸。
在一种可能的实现方式中，所述支架上设置有避让孔，所述避让孔与所述电池单体的注液孔对应设置且与所述电池单体的内部连通。
避让孔的设置能够避免支架对电池单体的注液过程造成影响。
在一种可能的实现方式中，所述注液孔设置于所述壳体远离所述端盖的第一壁，方便注液过程需要的注液空间。
第二方面，提供了一种电池，包括：第一方面和第一方面的任意可能的实现方式中的电池单体。
第三方面，提供了一种用电设备，包括：第一方面和第一方面的任意可能的实现方式中的电池单体，所述电池单体用于提供电能。
第四方面，提供了一种制造电池单体的方法，包括：提供电极组件；提供端盖，所述端盖设置有电极端子；提供壳体，所述壳体具有开口；提供支架；将所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，并使所述支架与所述电极组件在第一方向上相抵，以对所述电极组件进行限位；将所述壳体与所述端盖盖合，以形成容纳将所述电极组件和所述支架的腔体。
第五方面，提供了一种制造电池单体的设备，包括：提供模块，所述提供模块用于提供壳体、电极组件、端盖以及支架，所述端盖设置有电极端子，所述壳体具有开口；组装模块，将所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，使所述支架与所述电 极组件在第一方向上相抵，以对所述电极组件进行限位，将所述端盖盖合于所述开口以将所述电极组件、所述支架容纳于所述端盖与所述壳体围成的空间内。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例公开的一种车辆的结构示意图；
图2是本申请一实施例公开的一种电池的结构示意图；
图3是本申请一实施例公开的一种电池单体的爆炸图；
图4是本申请一实施例公开的一种电池单体的俯视图；
图5是图4中的电池单体沿B-B方向的局部剖面图；
图6是图4中的电池单体沿F-F方向的局部剖面图；
图7为图4中的电池单体沿C-C方向的局部剖面图；
图8是本申请一实施例公开的连接构件与支架的位置关系的示意图；
图9是本申请一实施例公开的第一绝缘件的结构示意图；
图10是本申请一实施例公开的第一绝缘件与支架的组装示意图；
图11是本申请一实施例的一种制造电池的方法的示意性流程图；
图12是本申请一实施例的一种制造电池的设备的示意性框图；
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具 有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。
本申请中，电池是指包括一个或多个电池单体以提供电能的物理模块。例如，本申请中所提到的电池可以包括电池模块或电池包等。电池一般包括用于封装一个或 多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
在一些实施例中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。在一些实施方式中，电池单体也可称之为电芯。
电池单体包括电极组件和电解液，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔膜的材质可以为聚丙烯(Polypropylene，PP)或聚乙烯(Polyethylene，PE)等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
为了满足不同的电力需求，电池中的多个电池单体之间可以串联、并联或混联，其中混联是指串联和并联的混合。在一些实施例中，多个电池单体可以先串联、并联或混联组成电池模块，多个电池模块再串联、并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块再组成电池。电池再进一步设置于用电设备中，为用电设备提供电能。
在电池的箱体中，还可以包括信号传输组件。信号传输组件可以用于传输电池单体的电压和/或温度等信号。该信号传输组件可以包括汇流部件，该汇流部件用于实现多个电池单体之间的电连接，例如并联、串联或混联。汇流部件可通过连接电池单体的电极端子实现电池单体之间的电连接。在一些实施例中，汇流部件可通过焊接固定于电池单体的电极端子。汇流部件传输电池单体的电压，多个电池单体串联后会得到较高的电压，相应地，汇流部件形成的电连接也可称为“高压连接”。
除了汇流部件外，该信号传输组件还可以包括用于感测电池单体的状态的传感 器件，例如，该传感器件可以用于测量以及传输电池单体的温度、荷电状态等传感信号。在本申请实施例中，电池内的电连接构件可以包括汇流部件和/或传感器件。
汇流部件和传感器件可以封装在绝缘层中，形成信号传输组件。相应地，信号传输组件可用于传输电池单体的电压和/或传感信号。信号传输组件在与电池单体的电极端子的连接处没有绝缘层，即，在此处绝缘层具有开孔，从而与电池单体的电极端子连接。
电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、循环寿命、放电容量、充放电倍率等性能参数。另外，还需要考虑电池单体的结构稳定性。
鉴于此，本申请提供了一种技术方案，通过在电池单体中设置支架，使电池单体的结构更加稳固，并且通过将该支架与电极组件相抵，同时实现了对电极组件的限位，提升了电池单体的结构稳定性。
本申请实施例描述的技术方案均适用于各种使用电池的装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。
应理解，本申请实施例描述的技术方案不仅仅局限适用于上述所描述的装置，还可以适用于所有使用电池的装置，但为描述简洁，下述实施例均以车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部可以设置马达40，控制器30以及电池10，控制器30用来控制电池10为马达40的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1提供驱动动力。
电池10可以包括多个电池单体。例如，如图2所示，为本申请一个实施例的一种电池10的结构示意图，电池10可以包括多个电池单体20。电池10还可以包括箱体11，箱体11内部为中空结构，多个电池单体20容纳于箱体11内。如图2所示，箱体11可以包括两部分，这里分别称为第一部分111和第二部分112，第一部分111和第二 部分112扣合在一起。第一部分111和第二部分112的形状可以根据多个电池单体20组合的形状而定，第一部分111和第二部分112中至少一个具有一个开口。例如，如图2所示，第一部分111和第二部分112均可以为中空长方体且各自只有一个面为开口面，第一部分111的开口和第二部分112的开口相对设置，并且第一部分111和第二部分112相互扣合形成具有封闭腔室的箱体11。再例如，不同于图2所示，第一部分111和第二部分112中可以仅有一个为具有开口的中空长方体，而另一个为板状，以盖合开口。例如，这里以第二部分112为中空长方体且只有一个面为开口面，第一部分111为板状为例，那么第一部分111盖合在第二部分112的开口处以形成具有封闭腔室的箱体，该腔室可以用于容纳多个电池单体20。多个电池单体20相互并联、串联或混联组合后置于第一部分111和第二部分112扣合后形成的箱体11内。
在一些实施例中，电池10还可以包括其他结构，在此不再一一赘述。例如，该电池10还可以包括汇流部件(图中未示出)，汇流部件用于实现多个电池单体20之间的电连接，例如并联、串联或混联。具体地，汇流部件可通过连接电池单体20的电极端子实现电池单体20之间的电连接。进一步地，汇流部件可通过焊接固定于电池单体20的电极端子。多个电池单体20的电能可进一步通过导电机构穿过箱体而引出。在一些实施例中，导电机构也可属于汇流部件。
根据不同的电力需求，电池单体20的数量可以设置为任意数值。多个电池单体20可通过串联、并联或混联的方式连接以实现较大的容量或功率。由于每个电池10中包括的电池单体20的数量可能较多，为了便于安装，可以将电池单体20分组设置，每组电池单体20组成电池模块。电池模块中包括的电池单体20的数量不限，可以根据需求设置。电池可以包括多个电池模块，这些电池模块可通过串联、并联或混联的方式进行连接。
作为示例，如图3所示，为本申请一个实施例的一种电池单体20的结构示意图，电池单体20包括一个或多个电极组件22、壳体211和端盖212。壳体211和端盖212形成外壳或电池盒。壳体211的壁以及端盖212均称为电池单体20的壁，其中对于长方体型电池单体20，壳体211的壁包括底壁和四个侧壁。壳体211根据一个或多个电极组件22组合后的形状而定，例如，壳体211可以为中空的长方体、正方体、圆柱体，长方体型的电池单体20可以进一步通过调整其长度和厚度，形成刀片状的电池单体20。壳体211的其中一个面具有开口以便一个或多个电极组件22可以放置于壳体 211内。例如，当壳体211为中空的长方体、正方体、或者刀片型时，壳体211的其中一个平面为开口面，即该平面不具有壁体而使得壳体211内外相通。当壳体211可以为中空的圆柱体时，壳体211的端面为开口面，即该端面不具有壁体而使得壳体211内外相通。端盖212覆盖开口并且与壳体211连接，以形成放置电极组件22的封闭的腔体。壳体211内填充有电解质，例如电解液。
电池单体20还可以包括电极端子214，电极端子214可以设置在端盖212上。端盖212通常是平板形状，电极端子214固定在端盖212的平板面上，电极端子214可以为正电极端子或者负电极端子。电极端子214对应设置一个连接构件23，或者也可以称为集流构件23，其位于端盖212与电极组件22之间，用于将电极组件22和电极端子214实现电连接。
每个电极组件22具有极耳221，极耳221可以为第一极耳221a或者第二极耳221b，第一极耳221a和第二极耳221b的极性相反。例如，当第一极耳221a为正极极耳时，第二极耳221b为负极极耳。如图3所示，电极组件22的极耳221可以通过连接构件23与电极端子214连接。当极耳221为正极极耳时，电极端子214可以是正极端子；当极耳221为负极极耳时，电极端子214可以是负极端子。
在电池单体20中，根据实际使用需求，电极组件22可设置为单个或多个，例如，如图3所示，电池单体20内设置有1个电极组件22。
应理解，本申请实施例中的电池10包括的多个电池单体20在箱体11内可以沿任意方向排列和摆放。例如，可以将多个电池单体20按照电池单体20的厚度方向排列安装在箱体内。图2中以两个电池单体20为例，在实际应用中，电池10中可以包括其他数量的电池单体20。
图4为电池单体20端盖212侧的俯视图，图5为图4中的电池单体20沿B-B方向的局部剖视图，图6为图4中的电池单体20沿F-F方向的局部剖视图。如图4-5所示，在电池单体20中，壳体211具有开口，电极组件22容纳于壳体211中，端盖212盖合该开口。端盖212上还设置有电极端子214。如图5所示，电池单体20还包括支架24，支架24设置于壳体211内，支架24与电极组件22沿第一方向X排列设置，支架24与端盖212沿第二方向Y排列设置，第一方向X垂直于第二方向Y。其中，支架24与电极组件22在第一方向X上相抵，以对电极组件22进行限位。
支架24例如可以是绝缘支架，以在对电极组件22限位的同时，避免电极组件 22与电池单体20中的其他部件短接。
上述的支架24与电极组件22沿第一方向X排列设置，可以是指全部或者部分电极组件22与支架24在第一方向X上排列设置。当支架24与部分电极组件22沿第一方向X排列设置时，支架24与部分电极组件22在第一方向X相抵，仍能够实现对电极组件22的限位。
在一种实现方式中，如图6所示，电极组件22包括电极主体222和极耳221。支架24与电极主体222沿第一方向X排列设置，而极耳221没有与支架24沿第一方向X排列设置，而是与支架24部分重叠。电极组件22包括第一极片、第二极片和隔离件，第一极片和第二极片的极性相反，隔离件用于将第一极片和第二极片绝缘隔离。其中，第一极片包括涂覆有第一活性物质层的第一涂覆区和未涂覆第一活性物质层的第一未涂覆区，第二极片包括涂覆有第二活性物质层的第二涂覆区和未涂覆第二活性物质层的第二未涂覆区。电极主体222包括第一涂覆区、第二涂覆区和隔离件，极耳211包括第一未涂覆区和第二未涂覆区，第一未涂覆区可以是第一极耳，第二未涂覆区可以是第二极耳，第一极耳和第二极耳极性相反。
在一些实施例中，电极组件22可以为扁平状，电极组件22的外表面包括沿第二方向Y设置的两个扁平面；或者，电极组件22可以为卷绕式结构，第一极片和第二极片绕卷绕轴线卷绕并形成卷绕结构，卷绕轴线与第一方向X一致；或者，电极组件22可以为叠片式结构，多个第一极片和多个第二极片沿第二方向Y交替层叠；再或者，电极组件22采用叠片式结构，第一极片连续弯折且包括多个层叠段和多个折弯段，多个层叠段和多个第二极片沿第二方向Y交替层叠，各折弯段用于连接相邻的两个层叠段。
基于上述的电极组件22的结构，支架24与电极组件22在第一方向X上排列设置，可以是指支架24与电极主体222沿第一方向X排列设置。这时，如图6所示，电极组件22的极耳221和支架24可以在第二方向Y上至少部分重叠。
端盖212例如可以是电池单体20的壁中面积最大的壁，当电极组件包括沿第二方向Y设置的扁平面时，电极组件22的扁平面与端盖212大致平行。
在电池单体20的壳体211内设置沿第一方向X排列的电极组件22和支架24，并将电池单体的端盖212与壳体211在第二方向Y相盖合，以将支架24和电极组件22容纳于壳体211内，从而使电池单体20的结构更加稳固。并且由于支架24与电极组件 22沿第一方向X相抵，能够对电极组件22进行限位，防止电极组件22在第一方向X上窜动，提升了电池单体20的结构稳定性。
在一种实现方式中，如图6所示，电极组件22沿第一方向X的端部设置有极耳221，电池单体20的电极端子214与电极组件22的极耳221沿第二方向Y设置。这样，电极端子214与极耳221可以共用第二方向Y上的空间，减少了第一方向X上空间的浪费，从而使电池单体20的结构更加紧凑。
端盖212上的电极端子214例如可以沿第二方向Y凸起，并从端盖212的电极引出孔2121伸出。
在一种实现方式中，如图6所示，支架24朝向端盖212的一侧设置有容纳槽241，容纳槽241用于容纳部分极耳221。
如图6所示，支架24上设置有用于容纳极耳221的容纳槽241，当极耳221位于该容纳槽241内时，极耳221与支架24可以共用空间，而不占用多余的空间，使电池单体20的结构更加紧凑，提高了电池单体20的空间利用率。
当支架24与电极组件222沿第一方向X相抵时，可能会对部分极耳221造成损伤，例如对极耳221的收拢部分2211造成损伤。为此，在一种实现方式中，在第一方向X上，支架24上与电极组件22相抵的区域与支架24上容纳槽241对应的区域之间具有宽度差，以在支架24与电极组件22之间形成避让空间242，避让空间242用于容纳部分极耳221。这样，通过在支架24上该容纳槽241对应的区域设计避让空间242，以容纳极耳221上与支架24相抵的部分，可以避免对极耳221造成损伤，提高电池单体20的使用寿命。
例如，如图6所示，避让空间242在第一方向X上位于支架24与电极组件22之间，其内部容纳有极耳221的收拢部分2211，从而避免对极耳221的收拢部分2211造成损伤，提高电池单体20的使用寿命。
在一种实现方式中，支架24还包括阻挡部246，阻挡部246用于在第一方向X上隔离极耳221与壳体。例如，阻挡部246可以位于支架24在第一方向X上靠近壳体211的一侧，从而防止极耳221与壳体211之间短接。
在一些实施例中，支架24沿第三方向的两个端部以及阻挡部246围绕容纳槽241设置。
在一种实现方式中，如图6和图7所示，其中图7为图4中的电池单体20沿C- C方向的局部剖视图，电池单体20还包括连接构件23，连接构件23用于将电极组件22的极耳221与电极端子214电连接。连接构件23可以抵接于支架24靠近端盖212的端面。
这样，连接构件23不仅可以实现电极组件22的极耳221和电极端子214之间的电连接，还可以在第二方向Y抵接在支架24的靠近端盖212的端面，以防止支架24在第二方向Y上窜动，提升了电池单体20的结构稳定性。
在一种实现方式中，如图8所示，连接构件23可以抵接于支架24沿第三方向Z的两个端部，第一方向X、第二方向Y与第三方向Z两两垂直，该方式可以进一步提高支架24在电池单体20中的稳定性。
在一种实现方式中，如图7和图8所示，连接构件23上可以设置有与电极端子214对应的开孔231，电极端子214穿过对应的开孔231，最终凸出设置在端盖212上。
在一种实现方式中，支架24的朝向端盖212的端面上，设置有朝向端盖212凸出的凸起部243，凸起部243用于隔离连接构件23和壳体211。例如，如图7和图8所示，凸起部243位于支架24在第一方向X上靠近壳体211的一侧，并包围连接构件23上可能与壳体211接触的部分，从而将连接构件23与电池单体20的壳体211之间隔离，能够防止连接构件23与壳体211之间短接，提高了电池单体20的安全性。
在一种实现方式中，如图7所示，电池单体20还包括第一绝缘件25，第一绝缘件25设置于连接构件23与端盖212之间，用于隔离端盖212和连接构件23，从而避免端盖212和连接构件23之间的短接，提高电池单体的安全性。第一绝缘件25与支架24例如可以通过卡接等方式连接。
图9和图10示出了第一绝缘件25的一种可能的结构，如图9，第一绝缘件25上设置有卡扣251。如图10所示，支架24上设置有缺口244，第一绝缘件25上的卡扣251与支架24上的缺口244之间卡接，以实现第一绝缘件25与支架24之间的卡接连接。这种卡接方式，不仅实现了第一绝缘件25与支架24之间的固定，还便于支架24的灵活拆卸。
具体地，第一绝缘件25的卡扣251沿第二方向Y凸起，可以将卡扣251从第一方向X放入缺口244，从而在第二方向Y与缺口244卡接在一起，以将支架24与第一绝缘件25固定。
第一绝缘件25上例如可以设置有与电极端子214对应的开孔252，以通过电极 端子214。
在一种实现方式中，如图7所示，电池单体20还包括密封圈26，用于在电极端子214与端盖212之间形成密封。密封圈26例如可以为环状，并从第二方向Y套入电极端子214。
在一种实现方式中，如图7所示，电池单体20还包括第二绝缘件27，用于隔离端盖212和铆接块28。铆接块28用于固定凸出设置于端盖212上的电极端子214。第二绝缘件27上例如可以设置有与电极端子214对应的开孔271，电极端子214穿过对应的开孔271以连接至铆接块28。
在一种实现方式中，如图7所示，支架24上设置有避让孔245，避让孔245与电池单体20的注液孔对应设置，且与电池单体20的内部连通。避让孔的设置能够避免支架对电池单体的注液过程造成影响。
在一种实现方式中，如图7所示，注液孔245例如可以设置于壳体211远离端盖222的第一壁2111，壳体211远离端盖222的第一壁2111的设置的部件少，方便注液过程需要的注液空间。
本申请还提供了一种电池10，电池10包括前述各实施例中的电池单体20。
本申请一个实施例还提供了一种用电设备，该用电设备可以包括前述各实施例中的电池单体20，以用于为该用电设备提供电能。在一些实施例中，用电设备可以为车辆、船舶或航天器。
通过在用电设备中设置前述实施例的电池10，由于电池10中的电池单体20中设置有支架，且该支架与电极组件相抵，因此使电池单体的结构更加稳固，并实现对电极组件的限位，提升了电池单体的结构稳定性。
上文描述了本申请实施例的电池和用电设备，下面将描述本申请实施例的制造电池的方法和设备，其中未详细描述的部分可参见前述各实施例。
图11示出了本申请一个实施例的制造电池的方法300的示意性流程图。如图11所示，该方法300可以包括：
步骤310：提供电极组件22；
步骤320：提供端盖212，端盖212设置有电极端子214；
步骤330：提供壳体211，壳体211具有开口；
步骤340：提供支架24；
步骤350：将支架24与电极组件22沿第一方向X排列设置，支架24与端盖212沿第二方向Y排列设置，第一方向X垂直于第二方向Y，并使支架24与电极组件22在第一方向X上相抵，以对电极组件22进行限位；
步骤360：将壳体211与端盖212盖合，以形成容纳电极组件22和支架24的腔体。
应理解，上述步骤仅仅为示意，在实际的装配过程中，上述各个步骤的顺序可以根据实际需求进行相应的调整。例如，步骤330和步骤340的顺序可以交换，步骤340和步骤320的顺序也可以交换。
图12示出了本申请一个实施例的制造电池的设备400的示意性框图。如图12所示，制造电池的设备400可以包括：
提供模块410，提供模块410用于提供壳体211、电极组件22、端盖212以及支架24，端盖212设置有电极端子214，壳体211具有开口；
组装模块420，组装模块420用于将使支架24与电极组件22沿第一方向X排列设置，支架24与端盖212沿第二方向Y排列设置，第一方向X垂直于第二方向Y，并使支架24与电极组件22在第一方向X上相抵，以对电极组件22进行限位，将端盖212盖合于壳体211的开口，以将电极组件22、支架24容纳于端盖212与壳体211围成的腔体内。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (15)

  1. 一种电池单体，包括：
    壳体，具有开口；
    电极组件，容纳于所述壳体内；
    端盖，盖合所述开口，并设置有电极端子；以及，
    支架，设置于所述壳体内，所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，所述支架与所述电极组件在第一方向上相抵，以对所述电极组件进行限位。
  2. 根据权利要求1所述的电池单体，其中，所述电极组件沿所述第一方向的端部设置有所述极耳，所述电极端子与所述极耳沿所述第二方向设置。
  3. 根据权利要求2所述的电池单体，其中，所述支架朝向所述端盖的一侧设置有容纳槽，所述容纳槽用于容纳部分所述极耳。
  4. 根据权利要求3所述的电池单体，其中，在所述第一方向上，所述支架上与所述电极组件相抵的区域与所述支架上所述容纳槽对应的区域之间具有宽度差，以在所述支架与所述电极组件之间形成避让空间，所述避让空间用于容纳部分所述极耳。
  5. 根据权利要求1至4中任一项所述的电池单体，其中，所述支架还包括阻挡部，所述阻挡部用于在所述第一方向上隔离所述电极组件的极耳与所述壳体。
  6. 根据权利要求1至5中任一项所述的电池单体，其中，所述电池单体还包括：
    连接构件，所述连接构件用于将所述电极组件的极耳与所述电极端子电连接，所述连接构件抵接于所述支架靠近所述端盖的端面。
  7. 根据权利要求6所述的电池单体，其中，所述支架的朝向所述端盖的端面上设置有朝向所述端盖凸出的凸起部，所述凸起部用于隔离所述连接构件和所述壳体。
  8. 根据权利要求6或7所述的电池单体，其中，所述电池单体还包括：
    第一绝缘件，设置于所述连接构件与所述端盖之间，用于隔离所述端盖和所述连接构件，所述第一绝缘件与所述支架卡接连接。
  9. 根据权利要求8所述的电池单体，其中，
    所述第一绝缘件上设置有卡扣，所述支架上设置有缺口，所述卡扣与所述缺口卡接，以将所述第一绝缘件卡接连接在所述支架上。
  10. 根据权利要求1至9中任一项所述的电池单体，其特征在于，所述支架上设置有避让孔，所述避让孔与所述电池单体的注液孔对应设置且与所述电池单体的内部连通。
  11. 根据权利要求10所述的电池单体，其中，所述注液孔设置于所述壳体远离所述端盖的第一壁。
  12. 一种电池，其中，包括：根据权利要求1至11中任一项所述的电池单体。
  13. 一种用电设备，其中，包括：根据权利要求1至11中任一项所述的电池单体，所述电池单体用于提供电能。
  14. 一种制造电池单体的方法，其中，包括：
    提供电极组件；
    提供端盖，所述端盖设置有电极端子；
    提供壳体，所述壳体具有开口；
    提供支架；
    将所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，并使所述支架与所述电极组件在第一方向上相抵，以对所述电极组件进行限位；
    将所述壳体与所述端盖盖合，以形成容纳所述电极组件和所述支架的腔体。
  15. 一种制造电池单体的设备，其中，包括：
    提供模块，所述提供模块用于提供壳体、电极组件、端盖以及支架，所述端盖设置有电极端子，所述壳体具有开口；
    组装模块，所述组装模块用于：
    将所述支架与所述电极组件沿第一方向排列设置，所述支架与所述端盖沿第二方向排列设置，所述第一方向垂直于所述第二方向，并使所述支架与所述电极组件在第一方向上相抵，以对所述电极组件进行限位；以及，
    将所述端盖盖合于所述开口，以将所述电极组件、所述支架容纳于所述端盖与所述壳体围成的腔体内。
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