WO2023133748A1 - 电池模块、电池、用电设备、制备电池的方法和设备 - Google Patents

电池模块、电池、用电设备、制备电池的方法和设备 Download PDF

Info

Publication number
WO2023133748A1
WO2023133748A1 PCT/CN2022/071720 CN2022071720W WO2023133748A1 WO 2023133748 A1 WO2023133748 A1 WO 2023133748A1 CN 2022071720 W CN2022071720 W CN 2022071720W WO 2023133748 A1 WO2023133748 A1 WO 2023133748A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
wall
insulating strip
battery cells
module
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/CN2022/071720
Other languages
English (en)
French (fr)
Inventor
侯羽佳
陈兴地
龙超
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 PCT/CN2022/071720 priority Critical patent/WO2023133748A1/zh
Priority to CN202280006533.3A priority patent/CN116325311B/zh
Priority to CN202223089558.0U priority patent/CN219658948U/zh
Publication of WO2023133748A1 publication Critical patent/WO2023133748A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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, in particular to a battery module, battery, electrical equipment, method and equipment for preparing the battery.
  • the embodiment of the present application provides a battery module, battery, electrical equipment, method and equipment for preparing the battery, which can limit the expansion space of the welding area of the battery cell when the battery cell expands, avoiding the failure of the welding area, thereby improving the safety of the battery performance.
  • a battery module including: N rows of battery cells, each row of battery cells in the N rows of battery cells includes a plurality of battery cells arranged along a first direction, and the N rows of battery cells
  • the battery cells are arranged along the second direction, the first direction is perpendicular to the second direction, and N is an integer greater than 1; an insulating strip, the insulating strip extends along the first direction, and the insulating strip is used for
  • the first wall connecting the battery cells the first wall is the wall with the largest surface area among the battery cells, the size of the insulating strip is smaller than the size of the first wall in the third direction, the The third direction is perpendicular to the first direction and the second direction, and the connection area between the insulating strip and the first wall includes a welding area of the first wall.
  • the insulating strip is connected to the first wall with the largest surface area of the battery cell, and the connection area between the insulating strip and the first wall includes the welding area of the first wall of the battery cell.
  • the insulating strip connected to the first wall can act as a stress member in the welding area of the first wall, limiting the expansion space of the welding area, so that the welding area will not be larger
  • the deformation of the welding area can avoid the failure of the welding area, thereby improving the safety performance of the battery.
  • the size of the insulating strip may be within 10mm.
  • the use of insulating strips of this size can not only act as a stress member, but also reduce the space occupied in the battery module and ensure the expansion space of the non-welding area.
  • the battery cells in the battery module include a housing with an opening; an end cover for closing the opening to accommodate the battery assembly; the first wall has the largest surface area in the housing.
  • the wall of the said end cover is welded and fixed with the said housing at the said opening to form the said welded area.
  • the end cover covers the housing to form a closed space for accommodating the battery assembly, and the welding area of the first wall of the battery cell is the area where the end cover and the housing are welded at the opening.
  • the wall with the largest surface area in the shell expands the most, and the insulating strip is arranged on the welding area on the wall, which can effectively protect the welding area between the end cover and the shell from large deformation.
  • the insulating strip covers the welding seam between the first wall and the end cover.
  • the insulating strip covers the welding seam between the first wall and the end cover, that is, the welding seam between the shell of the battery cell covered by the insulating strip and the opening of the end cover, which can further strengthen the protection of the insulating strip on the weld seam and prevent the weld seam from being damaged by the battery.
  • the expansion of the monomer fails.
  • the insulating strip protrudes from the end cover in the third direction.
  • the insulating strip protrudes from the end cover, that is, the insulating strip protrudes from the welding area between the end cover and the housing, which can better limit the expansion of the welding area.
  • the insulating strip includes a first connecting portion and a second connecting portion, the first connecting portion is used to connect to the first wall, and the second connecting portion is connected to the first The connecting portion is away from the end of the battery cell and extends along the second direction, the second connecting portion is used to cover at least part of the end cover.
  • the first connection part is connected to the first wall of the battery cell, the second connection part covers at least part of the end cap, and the first connection part and the second connection part are connected, so that the insulating strip can completely cover the welding between the first wall and the end cap area.
  • the insulating strips can be L-shaped or T-shaped, which can meet different assembly requirements in production according to the process grouping and design space requirements.
  • the second connecting portion is snugly connected to the end cover.
  • the second connection part is bonded and connected with the end cover, which can further strengthen the protection effect of the insulating strip on the welding area.
  • the insulating strip is connected to the first wall of the battery cell located on the outermost side in the second direction.
  • the cumulative expansion phenomenon of the battery cell located on the outermost side of the second direction is the most serious.
  • Setting an insulating strip on the first wall of the battery cell can better restrain the expansion of the welding area here and prevent welding.
  • the area has a large deformation, thereby improving the safety performance of the battery.
  • the battery module further includes N-1 separators, the separators extend along the first direction and are arranged between two adjacent rows of battery cells, and the separators It is fixedly connected with each battery cell in two adjacent rows of battery cells; wherein, the end of the separator in the first direction is provided with a fixing structure, and the separator is fixed by the fixing structure It is used for housing the battery module.
  • a separator is arranged between two adjacent rows of battery cells in the battery module, and the separator is fixedly connected to each battery cell in the two rows of battery cells, and a fixed structure is arranged at the end of the separator, and the separator It is fixed in the box by a fixed structure.
  • each battery cell in the battery is fixed to the box by the separator and the fixing structure, because each battery cell can transfer its load to the box, ensuring the structural strength of the battery; in this case, There is no need to set side panels on the outside of the battery module, and there is no need to set beams and other structures in the box, which can maximize the space utilization rate inside the battery, thereby increasing the energy density of the battery.
  • the fixing structure includes a fixing plate, and the fixing plate is fixedly connected to the end of the separator and fixed to the battery cells located at the end of the separator. connect.
  • the fixing plate is connected with the box body and the partition and at the same time is fixedly connected with the battery cells located at the end of the partition, which can enhance the fixing effect on the battery cells.
  • a battery including: the battery module of the above-mentioned first aspect and a box for accommodating the battery module.
  • a plurality of battery modules are arranged, and the plurality of battery modules are arranged along the second direction, there is a gap between two adjacent battery modules, and at least part of the insulating strips are arranged on within the gap.
  • each battery module has a corresponding expansion gap, and insulating strips are arranged in the module gap to protect the welding area of the battery cells on both sides of the gap, thereby ensuring the safety of the battery.
  • the insulating strip includes two first connecting parts and a third connecting part, the two first connecting parts are arranged opposite to each other along the second direction, and the two first connecting parts are respectively connected with For connecting the first walls of the battery cells of two adjacent battery modules; the third connecting portion is located between the two first connecting portions and is used for connecting the first connecting portions.
  • first connecting parts and second connecting parts form an insulating strip, wherein the two first connecting parts are arranged along the second direction, and the third connecting part is between the two first connecting parts and connects the two second connecting parts.
  • a connection part in the case of a relatively large gap between the modules, there is no need to arrange a thicker insulating strip.
  • the insulation strip can be U-shaped or H-shaped, which can meet different assembly requirements in production according to the process grouping and design space requirements.
  • the third connecting portion is located in the gap.
  • the two first connecting parts are respectively connected to the first walls of the battery cells of the two adjacent battery modules, and the third connecting part is located in the gap between the two first connecting parts, so that the two adjacent battery modules can be connected to each other.
  • the battery cells are connected together, so that the insulating strip can simultaneously restrain the expansion of the first wall welding area of the two battery cells, and improve the overall safety performance of the battery.
  • an electric device including the battery in any possible implementation manners of the first aspect and the second aspect, where the battery is used to provide electric energy.
  • a method for preparing a battery including: providing a battery module, the battery module including N rows of battery cells, each row of battery cells in the N rows of battery cells includes cells arranged along a first direction A plurality of battery cells, the N columns of battery cells are arranged along the second direction, the first direction is perpendicular to the second direction, and N is an integer greater than 1; an insulating strip, the insulating strip is arranged along the Extending in the first direction, the insulating strip is used to connect the first wall of the battery cell, and the first wall is the wall with the largest surface area in the battery cell.
  • the size of the insulating strip is smaller than the size of the first wall, the third direction is perpendicular to the first direction and the second direction, and the connection area between the insulating strip and the first wall includes the welding area of the first wall ; providing a box; accommodating the battery module in the box.
  • a device for preparing batteries including: providing a module for providing a battery module and a box, the battery module includes N rows of battery cells, and each row of batteries in the N rows of battery cells
  • the single cell includes a plurality of battery cells arranged along a first direction, the N columns of battery cells are arranged along a second direction, the first direction is perpendicular to the second direction, and N is an integer greater than 1;
  • the insulating strip the insulating strip extends along the first direction, the insulating strip is used to connect the first wall of the battery cell, the first wall is the wall with the largest surface area in the battery cell, and the third upwards, the dimension of the insulating strip is smaller than the dimension of the first wall, the third direction is perpendicular to the first direction and the second direction, and the connection area between the insulating strip and the first wall includes The welding area of the first wall; an installation module for accommodating the battery module in the box.
  • the insulating strip is connected to the first wall with the largest surface area of the battery cell, and the connection area between the insulating strip and the first wall includes the welding area of the first wall of the battery cell.
  • the insulating strip connected to the first wall can act as a stress member in the welding area of the first wall, limiting the expansion space of the welding area. Therefore, the technical solution of the embodiment of the present application prevents large deformation of the welding area, avoids failure of the welding area, and improves the safety performance of the battery.
  • Fig. 1 is a schematic structural view of a vehicle disclosed in an embodiment of the present application
  • FIG. 2 is a schematic diagram of a battery according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram of a battery cell according to an embodiment of the present application.
  • Fig. 4 is a schematic diagram of a battery module according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a battery according to an embodiment of the present application.
  • Fig. 6 is a partial sectional view of A-A direction in Fig. 5;
  • FIG. 7 is a schematic diagram of a battery module according to an embodiment of the present application.
  • FIG. 8 is a schematic flow chart of a method for preparing a battery according to an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of a device for preparing a battery according to an embodiment of the present application.
  • first, second, third, etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. “Vertical” is not strictly vertical, but within the allowable range of error. “Parallel” is not strictly parallel, but within the allowable range of error.
  • connection should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. Disassembled connection, or integral connection; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.
  • 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.
  • the battery cell can be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square square battery cells and pouch battery cells, which are not limited in this embodiment of the present application.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • batteries mentioned in this application may include battery packs 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 cell includes a battery assembly and an electrolyte, and the battery 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 not coated with 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 without the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer.
  • 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.
  • 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 isolation film can be polypropylene (PP) or polyethylene (PE).
  • the battery assembly may be a winding structure or a laminated structure, which is not limited in the embodiment of the present application.
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series, in parallel or in parallel, and the hybrid connection refers to a mixture of series and parallel connections.
  • 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.
  • the insulating strip is connected to the first wall with the largest surface area of the battery cell, and the connection area between the insulating strip and the first wall includes the welding area of the first wall of the battery cell.
  • the insulating strip connected to the first wall can act as a stress member in the welding area of the first wall, limiting the expansion space of the welding area, so that the welding area will not be larger
  • the deformation of the welding area can avoid the failure of the welding area, thereby improving the safety performance of the battery.
  • 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 multiple 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 .
  • a plurality of battery cells 20 are placed in the case 11 after being connected in parallel, in series or in parallel.
  • the battery 10 may also include other structures, which will not be repeated here.
  • the battery 10 may also include a confluence part, which is used to realize electrical connection between 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 conduction means can also belong to the current-collecting part.
  • the number of battery cells 20 can be set to any value. Multiple 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 battery assemblies 22 , a casing 211 and an end cover 212 .
  • the housing 211 and the end cap 212 form the housing or battery compartment 21 .
  • 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 housing 211 depends on the combined shape of one or more battery assemblies 22.
  • the housing 211 can be a hollow cuboid or cube or cylinder, and one of the faces of the housing 211 has an opening so that one or more batteries can Assembly 22 may be placed within housing 211 .
  • 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 casing 211 can be a hollow cylinder, 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 housing 211 to form a closed cavity for placing the battery assembly 22 .
  • the casing 211 is filled with electrolyte, such as electrolytic solution.
  • the battery cell 20 may further include two electrode terminals 214 , and the two electrode terminals 214 may be disposed on the end cap 212 .
  • the end cap 212 is usually in the shape of a flat plate, and two electrode terminals 214 are fixed on the flat surface of the end cap 212, and the two electrode terminals 214 are positive electrode terminals 214a and negative electrode terminals 214b respectively.
  • Each 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 battery assembly 22 for electrically connecting the battery assembly 22 and the electrode terminal 214 .
  • each battery assembly 22 has a first tab 221a and a second tab 222a.
  • the polarities of the first tab 221a and the second tab 222a are opposite.
  • the first tab 221a is a positive tab
  • the second tab 222a is a negative tab.
  • the first tabs 221a of one or more battery assemblies 22 are connected to one electrode terminal through one connection member 23
  • the second tabs 222a of one or more battery assemblies 22 are connected to another electrode terminal through another connection member 23 .
  • the positive electrode terminal 214 a is connected to the positive electrode tab through one connection member 23
  • the negative electrode terminal 214 b is connected to the negative electrode tab through the other connection member 23 .
  • the battery assembly 22 can be set as single or multiple, as shown in FIG. 3 , the battery cell 20 is provided with four independent battery assemblies 22 .
  • a pressure relief mechanism 213 may also be provided on the battery cell 20 .
  • the pressure relief mechanism 213 is activated to release the internal pressure or temperature when the internal pressure or temperature of the battery cell 20 reaches a threshold.
  • the pressure relief mechanism 213 may be various possible pressure relief structures, which are not limited in this embodiment of the present application.
  • the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism configured to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold; and/or, the pressure relief mechanism 213 may be a pressure-sensitive pressure relief mechanism configured to rupture when the internal air pressure of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value.
  • FIG. 4 shows a schematic structural diagram of a battery module 100 according to an embodiment of the present application.
  • the battery module 100 includes N columns of battery cells 20 and insulating strips 103 , where N is an integer greater than 1.
  • Each row of battery cells 20 in the N rows of battery cells 20 includes a plurality of battery cells 20 arranged along a first direction, and the N rows of battery cells 20 are arranged along a second direction, and the first direction is perpendicular to the second direction.
  • the battery module 100 includes two rows of battery cells 20 and insulating strips 103, but this embodiment of the application is not limited to this, for example, the battery module 100 may also include 3 There are even more rows of battery cells 20 .
  • Each row of battery cells 20 in the N columns of battery cells 20 is arranged along a first direction, for example, a plurality of battery cells 20 in the x direction in FIG. 4 .
  • N columns of battery cells 20 are arranged along a second direction, for example, the y direction in FIG. 4 , and the first direction is perpendicular to the second direction.
  • the first direction is the direction in which the battery cells 20 are arranged in each row of battery cells 20
  • the second direction is the direction in which the battery cells 20 in N rows are arranged.
  • the insulating strip 103 extends along the first direction.
  • the insulating strip 103 is used to connect the first wall of the battery cell 20.
  • the first wall is the wall with the largest surface area in the battery cell 20.
  • the size of the insulating strip 103 is smaller than that of the first wall.
  • the third direction is perpendicular to the first direction and the second direction.
  • the insulating strip 103 includes the welding area of the first wall in the connection area of the first wall.
  • the third direction is the z direction in FIG. 4, and in the z direction in FIG. 4, the size of the insulating strip 103 is smaller than the size of the first wall, that is, the connection area between the insulating strip 103 and the first wall is not the first wall The entire area, but a partial area including the welded area of the first wall.
  • the insulating strip 103 is connected to the first wall of the battery cell 20 with the largest surface area, and the connection area between the insulating strip 103 and the first wall includes the welding area of the first wall of the battery cell 20 .
  • the insulating strip 103 connected to the first wall can serve as a stress member in the welding area of the first wall, limiting the expansion space of the welding area, so that the welding area will not be relatively tight.
  • the large deformation avoids the failure of the welding area, thereby improving the safety performance of the battery 10 .
  • adjacent battery cells 20 in N rows of battery cells 20 may be glued together, but this is not limited in this embodiment of the present application.
  • the fixing effect of the battery cells 20 can be enhanced through the fixing between adjacent battery cells 20 .
  • the dimension of the insulating strip 103 in the third direction may be within 10 mm.
  • the dimension of the insulating strip 103 in the third direction may be 2-8 mm.
  • the insulating strip 103 with this size can not only act as a stress member in the welding area, but also reduce the space occupied in the battery module 100 and ensure the expansion space of the non-welding area.
  • the battery cell 20 in the battery module 100 further includes a housing 211 with an opening and an end cover 212, and the end cover 212 closes the opening of the housing 211 to form a space for accommodating the battery assembly 22.
  • the wall with the largest surface area in the housing 211 is defined as the first wall, and the welding position of the end cover 212 at the opening and the housing 211 is defined as the welding area.
  • the shell 211 and the end cover 212 form a space to accommodate the battery assembly 22, so the wall with the largest surface area of the shell 211 is also the wall with the largest surface area of the battery cell 20, and the insulating strip 103 is fixed on the wall with the largest surface area of the shell 211, which is equivalent to is fixed on the wall of the battery cell 20 with the largest surface area.
  • the side wall with the largest surface area is often the part with the most serious expansion phenomenon and the largest expansion force compared with other walls.
  • the insulating strip 103 is arranged on the welding area on the wall, which can strengthen The insulating strip 103 protects the welding area.
  • the welding area between the end cover 212 and the housing 211 can be effectively protected from large deformation.
  • the battery cell 20 may be a rectangular parallelepiped battery cell 20 .
  • the rectangular parallelepiped battery cell 20 includes two opposite first side walls and two opposite second side walls, the area of the first side wall is larger than the area of the second side wall, that is, the first side wall is a wide side wall , the second side wall is a narrow side wall.
  • the first side wall with a larger area is used as the first wall, that is, the insulating strip 103 is disposed on the first side wall with a larger surface area.
  • the insulating strip 103 covers the welding seam between the first wall and the end cover 212 .
  • the insulating strip 103 covers the welding seam between the first wall and the end cap 212, that is, the insulating strip 103 covers the welding seam between the shell 211 of the battery cell 20 and the opening of the end cap 212, which can further strengthen the insulation strip 103 on the welding seam. protection against failure of the weld due to expansion of the battery cell 20 .
  • the insulating strip 103 may be fixedly connected to the battery cell 20 by means of adhesion.
  • the embodiment of the present application does not limit this.
  • the insulating strip 103 may be made of any insulating material, such as rubber or polycarbonate, which is not limited in this embodiment of the present application.
  • the insulating strip 103 protrudes from the end cap 212 in the third direction.
  • the insulating strip 103 protrudes from the end cover 212 , that is, the insulating strip 103 protrudes from the welding area between the end cover 212 and the housing 211 .
  • the insulating strip 103 protrudes from the end cover 212 in the third direction, it can better play the role of a stress member, and can better limit the expansion of the welding area.
  • the insulating strip 103 includes a first connecting portion 1031 and a second connecting portion 1032, the first connecting portion 1031 is used to connect with the first wall, and the second connecting portion 1032 is connected to the first connecting portion 1031 Extending away from the end of the battery cell 20 and along the second direction, the second connecting portion 1032 is used to cover at least part of the end cover 212 .
  • first connecting portion 1031 and the second connecting portion 1032 form a T-shaped insulating strip 103 .
  • the first connecting portion 1031 and the second connecting portion 1032 form an L-shaped insulating strip 103 .
  • the insulating strip 103 can play the role of a stress member, it can meet the purpose of different assembly requirements under different process group requirements and design space requirements through various parts forms, for example, when the insulating strip 103 is L-shaped It may be installed after the battery module 100 is assembled, which is not limited in this embodiment of the present application.
  • the first connecting part 1031 is connected to the first wall of the battery cell 20, the second connecting part 1032 covers at least part of the end cap 212, and the first connecting part 1031 and the second connecting part 1032 are connected, so that the insulating strip 103 can completely cover the second connecting part 212.
  • the welding area between one wall and the end cap 212 is not limited.
  • the second connecting portion 1032 in the insulating strip 103 is snugly connected to the end cap 212 of the battery cell 20 .
  • the first connecting portion 1031 of the insulating strip 103 is connected to the first wall of the battery cell 20, and the second connecting portion 1032 is attached and connected to the end cap 212 of the battery cell 20, so that the second connecting portion 1032 can serve as a force-bearing member in the welded area of the casing 211 and the end cover 212 in the battery cell 20 .
  • the protective effect of the insulating strip 103 on the welding area can be further enhanced.
  • the insulating strip 103 is connected to the first wall of the outermost battery cell 20 in the second direction.
  • the battery cells 20 bear different expansion forces due to different positions, and the cumulative expansion of the battery cells 20 on the outermost side in the second direction is the most severe.
  • the expansion of the welding area here can be better suppressed, preventing large deformation of the welding area here, thereby improving the reliability of the battery 10. safety performance.
  • the battery module 100 further includes N ⁇ 1 rows of separators 101 , and the N ⁇ 1 separators are arranged between the N rows of battery cells 20 . That is to say, the separator 101 is disposed inside the battery module 100 , and the separator 101 is not provided outside the battery module 100 . For example, one separator 101 is arranged between two rows of battery cells 20 , two separators 101 are arranged between three rows of battery cells 20 , and so on. Through such an arrangement, fewer separators can be used so that each battery cell 20 in the battery module 100 can be fixedly connected by the separator 101 .
  • the end of the partition 101 in the first direction is provided with a fixing structure 102 , and the partition is fixed to the box body 11 through the fixing structure 102 .
  • the fixing structures 102 are disposed at both ends of the partition 101 in the x direction.
  • the separator 101 is fixed to the box body 11 through the fixing structure 102 , thereby realizing fixing the battery module 100 to the box body 11 .
  • each battery cell 20 in the battery module 100 is fixedly connected by the separator 101 , and each battery cell 20 is fixedly connected to the box body 11 through the fixing structure 102 .
  • a separator 101 is provided between two adjacent rows of battery cells 20 of the battery module 100, and the separator 101 is fixedly connected to each battery cell 20 in the two rows of battery cells 20.
  • a fixing structure 102 is provided at an end of the partition 101 , and the partition 101 is fixed to the box body 11 through the fixing structure 102 .
  • each battery cell 20 in the battery module 100 is fixed to the box body 11 by the separator 101 and the fixing structure 102, so each battery cell 20 can transfer its load to the box body 11, ensuring the battery 10 Structural strength; in this case, the outside of the battery module 100 can no longer be provided with side panels, and the middle of the box body 11 does not need to be provided with structures such as beams, which can maximize the space utilization rate inside the battery module 100, thereby improving Energy density of the battery module 100 . Therefore, the technical solutions of the embodiments of the present application can improve the energy density of the battery module 100 while ensuring the safety performance of the battery module 100 , thereby improving the performance of the battery.
  • the separator 101 may be fixedly connected to each battery cell 20 in two adjacent rows of battery cells 20 by means of adhesion.
  • the separator 101 and each battery cell 20 in two adjacent columns of battery cells 20 can be bonded by structural adhesive 110 , but the embodiment of the present application This is not limited.
  • the separator 101 can be a metal plate, such as a steel plate or an aluminum plate, or a plastic plate, and the material of the separator 101 can also be a composite material, for example, other materials are coated on the surface of the metal plate.
  • the embodiment does not limit this.
  • the fixing structure 102 may include a fixing plate 104 .
  • the fixing plate 104 is fixedly connected to the end of the separator 101 , and is fixedly connected to the battery cell 20 located at the end of the separator 101 .
  • the fixing plate 104 can be vertically connected to the separator 101, and connected with the separator 101 respectively to two adjacent side walls of the rectangular parallelepiped battery cell 20, thereby further strengthening the stability of the battery cell. A fixed effect of 20.
  • the fixing plate 104 can be made of the same material as the partition plate 101, for example, metal, plastic or composite material.
  • the thickness of the fixing plate 104 may be the same as that of the partition plate 101 .
  • the material or thickness of the fixing plate 104 may also be different from that of the separator 101 , for example, the fixing plate 104 may be set with higher strength or thickness, but this is not limited in this embodiment of the present application.
  • connection mode between the separator 101 and the fixing plate 104 may be resistance welding, resistance riveting, locking bolt or clamping connection; the fixing plate 104 may also be connected by resistance welding, resistance riveting, locking bolt or clamping. and other connection methods are fixed to the box body, but this is not limited in this embodiment of the application.
  • the fixing plate 104 and the battery cell 20 may be fixedly connected by bonding, for example, bonding by structural glue, but this is not limited in this embodiment of the present application.
  • FIG. 5 is a schematic diagram of a battery 10 according to an embodiment of the present application.
  • the battery 10 includes a battery module 100 and a case 11 .
  • the case 11 is used to house the battery module 100 .
  • a plurality of battery modules 100 are arranged in the battery 10 along the second direction, there is a gap between two adjacent battery modules 100, and insulating strips 103 are at least partially arranged In the gap between the two battery modules 100 .
  • the battery 10 includes a plurality of battery modules 100, and each battery module 100 has a corresponding expansion area, so the welding seam between the casing 211 and the end cover 212 in each battery cell 20 may be damaged due to the expansion of the battery cell 20. And deformation.
  • the insulating strips 103 By arranging the insulating strips 103 in the gaps of different battery modules 100, the welding area of the battery cells 20 in multiple battery modules 100 can be protected, and the overall safety performance of the battery can be further improved.
  • the insulating strip 103 includes two first connecting parts 1031, and the two first connecting parts 1031 are arranged opposite to the battery cells 20 in the battery module 100 along the second direction.
  • the first wall further includes a third connecting portion 1033 , the third connecting portion 1033 is located between the two first connecting portions 1031 and connects the two first connecting portions 1031 .
  • the insulating strip 103 composed of two first connecting parts 1031 and a third connecting part 1033 can be H-shaped or U-shaped, or other shapes, as long as the insulating strip 103 can function as a force-bearing member to protect the battery cell.
  • the welding seam between the end cover 212 of the body 20 and the shell 211 will not have excessive deformation, which is not limited in this embodiment of the present application. In this way, in the case of a large module gap, there is no need to arrange a thick insulating strip 103 .
  • the assembly requirements of different batteries 10 can be met through various parts forms.
  • the third connection part 1033 is disposed in the gap between the two battery modules 100 .
  • the two first connecting parts 1031 are respectively connected to the first walls of the battery cells 20 of two adjacent battery modules 100, and the third connecting part 1033 is located in the gap between the two first connecting parts 1031, so that the two The battery cells 20 of adjacent battery modules 100 are connected together, so that the insulating strip 103 can restrain the expansion of the first wall welding area of the two battery cells 20 at the same time, and improve the overall safety performance of the battery 10 .
  • the embodiment of the present application also provides an electric device, and the electric device may include the battery 10 in the foregoing embodiments.
  • the electrical device may be a vehicle 1, a ship, or a spacecraft, etc., but this is not limited in this embodiment of the present application.
  • the battery 10 and the electrical device of the embodiment of the present application are described above, and the method and device for preparing the battery of the embodiment of the present application will be described below, and the parts that are not described in detail can be referred to the foregoing embodiments.
  • FIG. 8 shows a schematic flowchart of a method 300 for preparing a battery according to an embodiment of the present application. As shown in Figure 8, the method 300 may include:
  • the battery modules 100 include: N rows of battery cells 20, each row of battery cells 20 in the N rows of battery cells 20 includes a plurality of battery cells arranged along a first direction, and the N rows of battery cells 20
  • the battery cells are arranged along the second direction, the first direction is perpendicular to the second direction, N is an integer greater than 1; the insulating strip 103, the insulating strip 103 extends along the first direction, and the insulating strip 103 is used to connect the surface area of the battery cells 20
  • the largest wall, in the third direction, the size of the insulating strip 103 is smaller than the size of the first wall, the third direction is perpendicular to the first direction and the second direction, and the connection area between the insulating strip 103 and the first wall includes the welding of the first wall area.
  • FIG. 9 shows a schematic block diagram of a device 400 for preparing a battery according to an embodiment of the present application.
  • the device 400 for preparing a battery may include: a providing module 410 and an installing module 420 .
  • a module 410 is provided for providing the battery module 100 and the box body 11.
  • the battery module 100 includes: N rows of battery cells 20, each row of battery cells 20 in the N rows of battery cells 20 is arranged along a first direction, and the N rows of battery cells 20 are arranged in a first direction.
  • the cells 20 are arranged along the second direction, the first direction is perpendicular to the second direction, and N is an integer greater than 1; the insulating strip 103, the insulating strip 103 extends along the first direction, and the insulating strip 103 is used to connect the first of the battery cells 20
  • One wall, the first wall is the wall with the largest surface area in the battery cell 20, in the third direction, the size of the insulating strip 103 is smaller than the size of the first wall, the third direction is perpendicular to the first direction and the second direction, the insulating strip 103
  • the area of connection to the first wall includes a welded area of the first wall;
  • the installation module 420 is used for accommodating the battery module 100 in the box body 11 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请实施例提供一种电池模块(100)、电池(10)、用电设备、制备电池的方法(300)和设备(400)。该电池(10)包括：电池模块(100)和箱体(11)，电池模块(100)容纳于箱体(11)内；电池模块(100)包括：N列电池单体(20)，N列电池单体(20)中的每列电池单体(20)沿第一方向排列，N列电池单体(20)沿第二方向排列，N为大于1的整数；绝缘条(103)，绝缘条(103)沿第一方向延伸且设置电池单体(20)的第一壁之间，其中，绝缘条(103)在第三方向上的尺寸小于第一壁的尺寸，绝缘条(103)连接包括第一壁焊接区域的部分区域。本申请实施例的技术方案，可以抑制电池单体焊接区域的膨胀空间，提升电池的安全性能。

Description

电池模块、电池、用电设备、制备电池的方法和设备 技术领域
本申请涉及电池技术领域，特别是涉及一种电池模块、电池、用电设备、制备电池的方法和设备。
背景技术
随着环境污染的日益加剧，新能源产业越来越受到人们的关注。在新能源产业中，电池技术是关乎其发展的一项重要因素。
在电池技术的发展中，安全问题也是一个不可忽视的问题。如何提升电池的安全性能，是电池技术中一个亟待解决的技术问题。
发明内容
本申请实施例提供了一种电池模块、电池、用电设备、制备电池的方法和设备，能够在电池单体膨胀时限制其焊接区域的膨胀空间，避免焊接区域失效，从而能够提升电池的安全性能。
第一方面，提供了一种电池模块，包括：N列电池单体，所述N列电池单体中的每列电池单体包括沿第一方向排列的多个电池单体，所述N列电池单体沿第二方向排列，所述第一方向垂直于所述第二方向，N为大于1的整数；绝缘条，所述绝缘条沿所述第一方向延伸，所述绝缘条用于连接所述电池单体的第一壁，所述第一壁为所述电池单体中表面积最大的壁，在第三方向上，所述绝缘条的尺寸小于所述第一壁的尺寸，所述第三方向垂直于所述第一方向和所述第二方向，所述绝缘条与所述第一壁的 连接区域包括所述第一壁的焊接区域。
在本申请实施例中，通过绝缘条与电池单体表面积最大的第一壁连接，绝缘条和第一壁的连接区域包括电池单体第一壁的焊接区域。这样，当电池单体在工作过程中膨胀时，连接在第一壁上的绝缘条可以充当第一壁的焊接区域的受力件，限制焊接区域的膨胀空间，使焊接区域不会发生较大的变形，避免焊接区域失效，从而能够提升电池的安全性能。
在一种可能的实施方式中，在第三方向上，绝缘条的尺寸可以在10mm以内。采用该尺寸的绝缘条，既可以充当受力件，又可以减小在电池模块中占用的空间，保证非焊接区域的膨胀空间。
在一种可能的实现方式中，电池模块中的电池单体包括壳体，具有开口；端盖，用于封闭所述开口以容纳电池组件；所述第一壁为所述壳体中表面积最大的壁，所述端盖在所述开口处与所述壳体焊接固定以形成所述焊接区域。
端盖盖合壳体形成密闭空间来容纳电池组件，电池单体第一壁的焊接区域为端盖在开口处与壳体所焊接的区域。电池单体工作时，壳体中表面积最大的壁膨胀力度最大，将绝缘条设置在该壁上的焊接区域，能够有效地保护端盖和壳体的焊接区域不会有较大的变形。
在一些可能的实现方式中，绝缘条覆盖所述第一壁与所述端盖的焊缝。
绝缘条覆盖第一壁与端盖的焊缝，也就是绝缘条包覆电池单体的壳体与端盖开口处的焊缝，可以进一步加强绝缘条对焊缝的保护，防止焊缝因为电池单体的膨胀而失效。
在一些可能的实现方式中，所述绝缘条在所述第三方向上凸出于所述端盖。
在第三方向上绝缘条凸出于端盖，即，绝缘条突出于端盖与壳体 的焊接区域，能够更好地限制焊接区域的膨胀。
在一些可能的方式中，所述绝缘条包括第一连接部和第二连接部，所述第一连接部用于与所述第一壁连接，所述第二连接部连接于所述第一连接部远离所述电池单体的端部并沿所述第二方向延伸，所述第二连接部用于覆盖至少部分所述端盖。
第一连接部连接电池单体的第一壁，第二连接部覆盖至少部分端盖，第一连接部和第二连接部连接，这样，绝缘条可以完全包覆第一壁与端盖的焊接区域。例如，绝缘条可以为L型或T型，根据工艺成组和设计空间要求，可以满足生产中不同装配要求。
在一些可能的方式中，所述第二连接部与所述端盖贴合连接。
第二连接部与端盖贴合连接，可以进一步加强绝缘条对焊接区域的保护效果。
在一些可能实施的方式中，所述绝缘条与位于所述第二方向最外侧的所述电池单体的所述第一壁连接。
在工作过程中，位于第二方向最外侧的电池单体的累积膨胀现象最严重，在此电池单体的第一壁上设置绝缘条，可以更好地抑制此处焊接区域的膨胀，防止焊接区域有较大的变形，进而提升电池的安全性能。
在一些可能实施的方式中，所述电池模块还包括N-1个隔板，所述隔板沿所述第一方向延伸且设置于相邻的两列电池单体之间，所述隔板与相邻的两列电池单体中的每个电池单体固定连接；其中，所述隔板在所述第一方向上的端部设置有固定结构，所述隔板通过所述固定结构固定于用于容纳所述电池模块的箱体。
在电池模块的相邻的两列电池单体之间设置隔板，该隔板与该两列电池单体中的每个电池单体固定连接，在隔板的端部设置固定结构，隔板通过固定结构固定于箱体中。这样，电池中的每个电池单体都被隔板和 固定结构固定于箱体，因为每个电池单体能够将其承载传递给箱体，保证了电池的结构强度；在这种情况下，电池模块外侧可以不再设置侧板，箱体中也不需要再设置梁等结构，可以较大限度地提升电池内部的空间利用率，从而提升电池的能量密度。
在一些可能的实施方式中，所述固定结构包括固定板，所述固定板与所述隔板的所述端部固定连接，且与位于所述隔板的所述端部的电池单体固定连接。
在上述方案中，固定板与箱体以及隔板连接的同时与位于隔板的端部的电池单体固定连接，可以增强对电池单体的固定效果。
第二方面，提供了一种电池，包括：上述第一方面的电池模块和用于容纳所述电池模块的箱体。
在一些可能的实施方式中，所述电池模块设置为多个，多个所述电池模块沿第二方向排列，相邻两个所述电池模块之间具有间隙，至少部分所述绝缘条设置于所述间隙内。
当存在多个电池模块时，每个电池模块间都有对应的膨胀间隙，绝缘条在模块间隙中布置，可以保护间隙两侧电池单体的焊接区域，从而保证电池的安全性。
在一些可能的实施方式中，所述绝缘条包括两个第一连接部和第三连接部，两个第一连接部沿所述第二方向相对设置，所述两个第一连接部分别用于连接相邻两个所述电池模块的所述电池单体的所述第一壁；第三连接部位于所述两个第一连接部之间并用于连接所述第一连接部。
两个相对设置的第一连接部和第二连接部组成绝缘条，其中，两个第一连接部沿第二方向设置，第三连接部在两个第一连接部之间并连接两个第一连接部，可以在模块间隙较大的情况下，不需要设置较厚的绝缘条。例如，绝缘条可以为U型或H型，根据工艺成组和设计空间要求，可 以满足生产中不同装配要求。
在一些可能的实施方式中，所述第三连接部位于所述间隙内。
两个第一连接部分别连接在两个相邻电池模块的电池单体的第一壁上，第三连接部位于两个第一连接部的间隙内，这样可以将两个相邻电池模块的电池单体连接在一起，使该绝缘条可以同时抑制这两个电池单体的第一壁焊接区域的膨胀，提高电池的整体安全性能。
第三方面，提供了一种用电设备，包括第一方面和第二方面的任意可能的实现方式中的电池，所述电池用于提供电能。
第四方面，提供了一种制备电池的方法，包括：提供电池模块，所述电池模块包括N列电池单体，所述N列电池单体中的每列电池单体包括沿第一方向排列的多个电池单体，所述N列电池单体沿第二方向排列，所述第一方向垂直于所述第二方向，N为大于1的整数；绝缘条，所述绝缘条沿所述第一方向延伸，所述绝缘条用于连接所述电池单体的第一壁，所述第一壁为所述电池单体中表面积最大的壁，在第三方向上，所述绝缘条的尺寸小于所述第一壁的尺寸，所述第三方向垂直于所述第一方向和所述第二方向，所述绝缘条与所述第一壁的连接区域包括所述第一壁的焊接区域；提供箱体；将所述电池模块容纳与所述箱体内。
第五方面，提供了一种制备电池的设备，包括：提供模块，用于提供电池模块和箱体，所述电池模块包括N列电池单体，所述N列电池单体中的每列电池单体包括沿第一方向排列的多个电池单体，所述N列电池单体沿第二方向排列，所述第一方向垂直于所述第二方向，N为大于1的整数；绝缘条，所述绝缘条沿所述第一方向延伸，所述绝缘条用于连接所述电池单体的第一壁，所述第一壁为所述电池单体中表面积最大的壁，在第三方向上，所述绝缘条的尺寸小于所述第一壁的尺寸，所述第三方向垂直于所述第一方向和所述第二方向，所述绝缘条与所述第一壁的连接区域 包括所述第一壁的焊接区域；安装模块，用于将所述电池模块容纳于所述箱体内。
本申请实施例的技术方案，通过绝缘条与电池单体表面积最大的第一壁连接，绝缘条和第一壁的连接区域包括电池单体第一壁的焊接区域。这样，当电池单体在工作过程中膨胀时，连接在第一壁上的绝缘条可以充当第一壁的焊接区域的受力件，限制焊接区域的膨胀空间。因此，本申请实施例的技术方案使焊接区域不会发生较大的变形，避免焊接区域失效，从而能够提升电池的安全性能。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例公开的一种车辆的结构示意图；
图2是本申请一实施例的电池的示意图；
图3是本申请一实施例的电池单体的示意图；
图4是本申请一实施例的电池模块的示意图；
图5是本申请一实施例的电池的示意图；
图6是图5中A-A向的局部剖视图；
图7是本申请一实施例的电池模块的示意图；
图8是本申请一实施例的制备电池的方法的示意性流程图；
图9是本申请一实施例的制备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，所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含；“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系， 表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提到的电池可以包括电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
电池单体包括电池组件和电解液，电池组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔离膜的材质可以为聚丙烯(PP)或聚乙烯(PE)等。此外，电池组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
为了满足不同的电力需求，电池可以包括多个电池单体，其中，多个电池单体之间可以串联或并联或混联，混联是指串联和并联的混合。可选地，多个电池单体可以先串联或并联或混联组成电池模块，多个电池 模块再串联或并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块再组成电池。电池再进一步设置于用电设备中，为用电设备提供电能。
随着电池技术的发展，在追求高能量密度和放电容量以及长时间的循环寿命和充放电倍率的同时，对电池安全性能的考虑也不能忽略。其中，电池单体在工作过程中膨胀时，其焊接区域可能会发生较大的变形，导致焊接区域失效，给电池带来很大的安全隐患。
鉴于此，本申请实施例提供了一种技术方案，通过绝缘条与电池单体表面积最大的第一壁连接，绝缘条和第一壁的连接区域包括电池单体第一壁的焊接区域。这样，当电池单体在工作过程中膨胀时，连接在第一壁上的绝缘条可以充当第一壁的焊接区域的受力件，限制焊接区域的膨胀空间，使焊接区域不会发生较大的变形，避免焊接区域失效，从而能够提升电池的安全性能。
本申请实施例描述的技术方案均适用于各种使用电池的装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。
应理解，本申请实施例描述的技术方案不仅仅局限适用于上述所描述的设备，还可以适用于所有使用电池的设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部可以设置马达40，控制器30以及电池10，控制器30用来控制电池10为马达40的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1提 供驱动动力。
为了满足不同的使用电力需求，电池10可以包括多个电池单体。例如，如图2所示，为本申请一个实施例的一种电池10的结构示意图，电池10可以包括多个电池单体20。电池10还可以包括箱体11，箱体11内部为中空结构，多个电池单体20容纳于箱体11内。例如，多个电池单体20相互并联或串联或混联组合后置于箱体11内。
可选地，电池10还可以包括其他结构，在此不再一一赘述。例如，该电池10还可以包括汇流部件，汇流部件用于实现多个电池单体20之间的电连接，例如并联或串联或混联。具体地，汇流部件可通过连接电池单体20的电极端子实现电池单体20之间的电连接。进一步地，汇流部件可通过焊接固定于电池单体20的电极端子。多个电池单体20的电能可进一步通过导电机构穿过箱体而引出。可选地，导电机构也可属于汇流部件。
根据不同的电力需求，电池单体20的数量可以设置为任意数值。多个电池单体20可通过串联、并联或混联的方式连接以实现较大的容量或功率。由于每个电池10中包括的电池单体20的数量可能较多，为了便于安装，可以将电池单体20分组设置，每组电池单体20组成电池模块。电池模块中包括的电池单体20的数量不限，可以根据需求设置。电池可以包括多个电池模块，这些电池模块可通过串联、并联或混联的方式进行连接。
如图3所示，为本申请一个实施例的一种电池单体20的结构示意图，电池单体20包括一个或多个电池组件22、壳体211和端盖212。壳体211和端盖212形成外壳或电池盒21。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根据一个或多个电池组件22组合后的形状而定，例如，壳体211可以为中空的长方体或正方体或圆柱体，且壳体211的其中一个面具有开口以便一个或多个电池组件22可以放置于壳体211内。例如，当壳体211为中空的长方体或正方体时，壳体211的其中一个平面为开口面，即该平面不具有壁体而使得壳体211内外相通。当壳体211可以为中空的圆柱体时，壳体211的端面为开口面，即该端面不具有壁体而使得壳 体211内外相通。端盖212覆盖开口并且与壳体211连接，以形成放置电池组件22的封闭的腔体。壳体211内填充有电解质，例如电解液。
该电池单体20还可以包括两个电极端子214，两个电极端子214可以设置在端盖212上。端盖212通常是平板形状，两个电极端子214固定在端盖212的平板面上，两个电极端子214分别为正电极端子214a和负电极端子214b。每个电极端子214各对应设置一个连接构件23，或者也可以称为集流构件23，其位于端盖212与电池组件22之间，用于将电池组件22和电极端子214实现电连接。
如图3所示，每个电池组件22具有第一极耳221a和第二极耳222a。第一极耳221a和第二极耳222a的极性相反。例如，当第一极耳221a为正极极耳时，第二极耳222a为负极极耳。一个或多个电池组件22的第一极耳221a通过一个连接构件23与一个电极端子连接，一个或多个电池组件22的第二极耳222a通过另一个连接构件23与另一个电极端子连接。例如，正电极端子214a通过一个连接构件23与正极极耳连接，负电极端子214b通过另一个连接构件23与负极极耳连接。
在该电池单体20中，根据实际使用需求，电池组件22可设置为单个，或多个，如图3所示，电池单体20内设置有4个独立的电池组件22。
电池单体20上还可设置泄压机构213。泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力或温度。
泄压机构213可以为各种可能的泄压结构，本申请实施例对此并不限定。例如，泄压机构213可以为温敏泄压机构，温敏泄压机构被配置为在设有泄压机构213的电池单体20的内部温度达到阈值时能够熔化；和/或，泄压机构213可以为压敏泄压机构，压敏泄压机构被配置为在设有泄压机构213的电池单体20的内部气压达到阈值时能够破裂。
图4示出了本申请一个实施例的电池模块100的结构示意图。如图4所示，电池模块100包括N列电池单体20和绝缘条103，N为大于1的整数。N列电池单体20中的每列电池单体20包括沿第一方向排列的多个电池单体20，N列电池单体20沿第二方向排列，第一方向垂直于第二方 向。
本申请附图中，以N为2为例说明，即电池模块100包括两列电池单体20和绝缘条103，但本申请实施例对此并不限定，例如，电池模块100也可以包括3列甚至更多列的电池单体20。
N列电池单体20中的每列电池单体20沿第一方向，例如，图4中的x方向排列的多个电池单体20。N列电池单体20沿第二方向排列，例如，图4中的y方向，第一方向垂直于第二方向。换句话说，第一方向为每列电池单体20中电池单体20排列的方向，第二方向为N列电池单体20排列的方向。
绝缘条103沿第一方向延伸，绝缘条103用于连接电池单体20的第一壁，第一壁为电池单体20中表面积最大的壁，在第三方向上绝缘条103的尺寸小于第一壁的尺寸，第三方向与第一方向、第二方向垂直。绝缘条103在第一壁的连接区域包括第一壁的焊接区域。
例如，第三方向为图4中的z方向，在图4中的z方向上，绝缘条103的尺寸小于第一壁的尺寸，即绝缘条103与第一壁的连接区域并不是第一壁的全部区域，而是包括第一壁的焊接区域的部分区域。
通过绝缘条103与电池单体20表面积最大的第一壁连接，绝缘条103和第一壁的连接区域包括电池单体20第一壁的焊接区域。这样，当电池单体20在工作过程中膨胀时，连接在第一壁上的绝缘条103可以充当第一壁焊接区域的受力件，限制焊接区域的膨胀空间，使焊接区域不会发生较大的变形，避免焊接区域失效，从而能够提升电池10的安全性能。
可选地，N列电池单体20中相邻的电池单体20间可以粘连，但本申请实施例对此并不限定。通过相邻电池单体20间的固定可以增强电池单体20的固定效果。
可选地，绝缘条103在第三方向上的尺寸可以在10mm以内，例如，在本申请一个实施例中，绝缘条103在第三方向上的尺寸可以为2-8mm。采用该尺寸的绝缘条103既可以充当焊接区域的受力件，也可以减小在电池模块100中占用的空间，保证非焊接区域的膨胀空间。
在本申请一些实施例中，电池模块100中的电池单体20还包括具 有开口的壳体211和端盖212，端盖212封闭壳体211的开口形成空间来容纳电池组件22。在此处，将壳体211中表面积最大的壁限定为第一壁，并且将端盖212在开口处与壳体211的焊接位置限定为焊接区域。
壳体211和端盖212形成空间来容纳电池组件22，因此壳体211表面积最大的壁也就是电池单体20表面积最大的壁，绝缘条103被固定在壳体211表面积最大的壁上，相当于被固定在电池单体20表面积最大的壁上。在电池单体20的使用过程中，其表面积最大的侧壁较其他的壁而言往往是膨胀现象最严重、膨胀力最大的部分，将绝缘条103设置在该壁上的焊接区域，可以加强绝缘条103对焊接区域的保护。
通过在壳体211的表面积最大的壁上设置绝缘条103，能够有效地保护端盖212和壳体211的焊接区域不会有较大的变形。
可选地，电池单体20可以为长方体型电池单体20。长方体型电池单体20包括两个相对的第一侧壁和两个相对的第二侧壁，第一侧壁的面积大于第二侧壁的面积，即，第一侧壁为宽面侧壁，第二侧壁为窄面侧壁。在本实施例中，将面积较大的第一侧壁作为第一壁，也就是将绝缘条103设置在表面积较大的第一侧壁上。
在本申请的一些实施例中，绝缘条103覆盖第一壁与端盖212的焊缝。
绝缘条103覆盖第一壁与端盖212的焊缝，也就是绝缘条103包覆电池单体20的壳体211与端盖212开口处的焊缝，可以进一步加强绝缘条103对焊缝的保护，防止焊缝因为电池单体20的膨胀而失效。
可选地，绝缘条103与电池单体20之间可以通过粘连的方式固定连接。本申请实施例对此并不限定。
可选地，绝缘条103可以为任意绝缘材料，例如橡胶或聚碳酸酯等材质，本申请实施例对此并不限定。
在本申请的一些实施例中，绝缘条103在第三方向上凸出于端盖212。
在第三方向上绝缘条103凸出于端盖212，即，绝缘条103突出于端盖212与壳体211的焊接区域。通过在第三方向上使绝缘条103凸出 于端盖212，可以使其更好的发挥受力件的作用，能够更好地限制焊接区域的膨胀。
在本申请的一些实施例中，绝缘条103包括第一连接部1031和第二连接部1032，第一连接部1031用于与第一壁连接，第二连接部1032连接于第一连接部1031远离电池单体20的端部并沿第二方向延伸，第二连接部1032用于覆盖至少部分端盖212。
可选地，第一连接部1031与第二连接部1032形成T字型绝缘条103。
可选地，如图4所示，第一连接部1031与第二连接部1032形成L型绝缘条103。
绝缘条103只要在能发挥充当受力件作用的前提下，可以通过多种零件形式，在不同工艺成组要求和设计空间要求下满足不同装配要求的目的，例如当绝缘条103形状呈L型时可以在电池模块100装配后再进行安装，本申请实施例对此不对限定。
第一连接部1031连接电池单体20的第一壁，第二连接部1032覆盖至少部分端盖212，第一连接部1031和第二连接部1032连接，这样，绝缘条103可以完全包覆第一壁与端盖212的焊接区域。
在本申请的一些实施例中，绝缘条103中的第二连接部1032与电池单体20的端盖212贴合连接。
如图4所示，绝缘条103的第一连接部1031连接在电池单体20的第一壁上，第二连接部1032与电池单体20的端盖212贴合连接，这样第二连接部1032可以充当电池单体20中壳体211与端盖212焊接区域的受力件。
通过将绝缘条103的第一连接部1031与电池单体20的第一壁连接，第二连接部1032与端盖212贴合连接，可以进一步加强绝缘条103对焊接区域的保护效果。
在本申请的一些实施例中，绝缘条103与位于第二方向最外侧的电池单体20的第一壁连接。
电池模块100中，电池单体20因所处于不同位置所承受的膨胀力 也有所不同，第二方向最外侧的电池单体20的累计膨胀最严重。通过在第二方向最外侧的电池单体20的第一壁上连接绝缘条103，可以更好地抑制此处焊接区域的膨胀，防止此处焊接区域有较大的变形，进而提升电池10的安全性能。
在本申请的一些实施例中，电池模块100还包括N-1列个隔板101，N-1个隔板设置于N列电池单体20之间。也就是说，隔板101设置于电池模块100的内部，电池模块100的外侧不再设置隔板101。例如，两列电池单体20之间设置一个隔板101，三列电池单体20之间设置两个隔板101，以此类推。通过这样的设置可以利用较少的隔板使得电池模块100中的每个电池单体20均可以被隔板101固定连接。
隔板101在第一方向上的端部设置有固定结构102，隔板通过固定结构102固定于箱体11。请继续参见图4，固定结构102设置于隔板101在x方向上的两端。隔板101通过固定结构102固定于箱体11，进而实现将电池模块100固定于箱体11。如上所述，电池模块100中的每个电池单体20均被隔板101固定连接，再通过固定结构102可以实现每个电池单体20与箱体11的固定连接。
在上述方案中，在电池模块100的相邻的两列电池单体20之间设置隔板101，该隔板101与该两列电池单体20中的每个电池单体20固定连接，在隔板101的端部设置固定结构102，隔板101通过固定结构102固定于箱体11。这样，电池模块100中的每个电池单体20都被隔板101和固定结构102固定于箱体11，因而每个电池单体20能够将其载荷传递到箱体11，保障了电池10的结构强度；在这种情况下，电池模块100外侧可以不再设置侧板，箱体11中部也不需要再设置梁等结构，可以较大限度地提升电池模块100内部的空间利用率，从而提升电池模块100的能量密度。因此，本申请实施例的技术方案能够在提升电池模块100的能量密度的同时保障电池模块100的安全性能，从而能够提升电池的性能。
可选地，隔板101与相邻的两列电池单体20中的每个电池单体20之间可以通过粘接的方式固定连接。例如，在本申请一个实施例中，如图6所示，隔板101与相邻的两列电池单体20中的每个电池单体20可以 通过结构胶110粘接，但本申请实施例对此并不限定。
可选地，隔板101可以为金属板，例如，可以为钢板或铝板，也可以为塑料板，隔板101的材料还可以为复合材料，例如，在金属板表面涂覆其他材料，本申请实施例对此并不限定。
在本申请的一些实施例中，固定结构102可以包括固定板104。固定板104与隔板101的端部固定连接，且与位于隔板101的端部的电池单体20固定连接。例如，对于长方体型电池单体20，固定板104可以垂直连接于隔板101，并与隔板101分别连接长方体型电池单体20的两个相邻的侧壁，从而进一步加强对电池单体20的固定效果。
可选地，固定板104可以采用与隔板101相同的材料，例如，金属、塑料或复合材料。固定板104的厚度也可以与隔板101相同。固定板104的材料或厚度也可以与隔板101不同，例如，固定板104可以采用更高强度或厚度的设置，但本申请实施例对此并不限定。
可选地，隔板101与固定板104之间的连接方式可以是电阻焊接、电阻铆接、锁螺栓或卡接等连接方式；固定板104也可以通过电阻焊接、电阻铆接、锁螺栓或卡接等连接方式固定到箱体上，但本申请实施例对此并不限定。
可选地，固定板104与电池单体20之间可以通过粘接的方式固定连接，例如，通过结构胶粘接，但本申请实施例对此并不限定。
图5是本申请一个实施例的电池10的示意图。如图5所示，电池10包括电池模块100和箱体11。箱体11用于容纳电池模块100。
在本申请一些实施例中，如图5和图6所示，多个电池模块100在电池10中沿第二方向排列，相邻两个电池模块100之间具有间隙，绝缘条103至少部分设置在两个电池模块100之间的间隙中。
电池10包含多个电池模块100，每个电池模块100间都有相应的膨胀区域，因此每个电池单体20中壳体211与端盖212的焊缝均可能会因为电池单体20的膨胀而变形。通过在不同电池模块100的间隙中布置绝缘条103，可以保护多个电池模块100中电池单体20的焊接区域，进一步提高电池的整体安全性能。
在本申请的一些实施例中，如图7所示，绝缘条103包括两个第一连接部1031，两个第一连接部1031沿第二方向相对设置在电池模块100中的电池单体20的第一壁上，还包括一个第三连接部1033，第三连接部1033位于两个第一连接部1031之间并连接两个第一连接部1031。
由两个第一连接部1031和一个第三连接部1033组成的绝缘条103可以为H型或U型，也可以为其它形状，只要绝缘条103能发挥充当受力件的作用，保护电池单体20的端盖212和壳体211之间的焊缝不会有过大的变形，本申请实施例对此不对限定。这样，在模块间隙较大的情况下，不需要设置较厚的绝缘条103。
在不同的工艺成组要求和设计要求下，通过多种零件形式，可以达到不同电池10装配的要求。
在本申请的一些实施例中，第三连接部1033被设置在两个电池模块100的间隙内。
两个第一连接部1031分别连接在两个相邻电池模块100的电池单体20的第一壁上，第三连接部1033位于两个第一连接部1031的间隙内，这样可以将两个相邻电池模块100的电池单体20连接在一起，使该绝缘条103可以同时抑制这两个电池单体20的第一壁焊接区域的膨胀，提高电池10的整体安全性能。
应理解，本申请各实施例中相关部分可以相互参考，为了简洁不再赘述。
本申请实施例还提供了一种用电设备，该用电设备可以包括前述实施例中的电池10。可选地，该用电设备可以为车辆1、船舶或航天器等，但本申请实施例对此并不限定。
上文描述了本申请实施例的电池10和用电设备，下面将描述本申请实施例的制备电池的方法和设备，其中未详细描述的部分可参见前述各实施例。
图8示出了本申请一个实施例的制备电池的方法300的示意性流程图。如图8所示，该方法300可以包括：
310，提供多个电池模块100，电池模块100包括：N列电池单体 20，N列电池单体20中的每列电池单体20包括沿第一方向排列的多个电池单体，N列电池单体沿第二方向排列，第一方向垂直于第二方向，N为大于1的整数；绝缘条103，绝缘条103沿第一方向延伸，绝缘条103用于连接电池单体20中表面积最大的壁，在第三方向上，绝缘条103的尺寸小于第一壁的尺寸，第三方向垂直于第一方向和第二方向，绝缘条103与第一壁的连接区域包括第一壁的焊接区域。
320，提供箱体11；
330，将电池模块100容纳于箱体11内，其中，隔板101通过固定结构102固定于箱体11。
图9示出了本申请一个实施例的制备电池的设备400的示意性框图。如图9所示，制备电池的设备400可以包括：提供模块410和安装模块420。
提供模块410，用于提供电池模块100和箱体11，电池模块100包括：N列电池单体20，N列电池单体20中的每列电池单体20沿第一方向排列，N列电池单体20沿第二方向排列，第一方向垂直于第二方向，N为大于1的整数；绝缘条103，绝缘条103沿第一方向延伸，绝缘条103用于连接电池单体20的第一壁，第一壁为电池单体20中表面积最大的壁，在第三方向上，绝缘条103的尺寸小于第一壁的尺寸，第三方向垂直于第一方向和第二方向，绝缘条103与第一壁的连接区域包括第一壁的焊接区域；
安装模块420，用于将电池模块100容纳于箱体11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 (16)

  1. 一种电池模块(100)，其特征在于，包括：
    N列电池单体(20)，所述N列电池单体(20)中的每列电池单体(20)包括沿第一方向排列的多个电池单体(20)，所述N列电池单体(20)沿第二方向排列，所述第一方向垂直于所述第二方向，N为大于1的整数；
    绝缘条(103)，所述绝缘条(103)沿所述第一方向延伸，所述绝缘条(103)用于连接所述电池单体(20)的第一壁，所述第一壁为所述电池单体(20)中表面积最大的壁，在第三方向上，所述绝缘条(103)的尺寸小于所述第一壁的尺寸，所述第三方向垂直于所述第一方向和所述第二方向，所述绝缘条(103)与所述第一壁的连接区域包括所述第一壁的焊接区域。
  2. 根据权利要求1所述的电池模块(100)，其特征在于，所述电池单体(20)包括：
    壳体(211)，具有开口；
    端盖(212)，用于封闭所述开口以容纳电池组件(22)；
    所述第一壁为所述壳体(211)中表面积最大的壁，所述端盖(212)在所述开口处与所述壳体(211)焊接固定以形成所述焊接区域。
  3. 根据权利要求2所述的电池模块(100)，其特征在于，所述绝缘条(103)覆盖所述第一壁与所述端盖(212)的焊缝。
  4. 根据权利要求2或3所述的电池模块(100)，其特征在于，所述绝缘条(103)在所述第三方向上凸出于所述端盖(212)。
  5. 根据权利要求2至4任一项所述的电池模块(100)，其特征在于，所述绝缘条(103)包括第一连接部(1031)和第二连接部(1032)，所 述第一连接部(1031)用于与所述第一壁连接，所述第二连接部(1032)连接于所述第一连接部(1031)远离所述电池单体(20)的端部并沿所述第二方向延伸，所述第二连接部用于覆盖至少部分所述端盖(212)。
  6. 根据权利要求5所述的电池模块(100)，其特征在于，所述第二连接部(1031)与所述端盖(212)贴合连接。
  7. 根据权利要求1至6任一项所述的电池模块(100)，其特征在于，所述绝缘条(103)与位于所述第二方向最外侧的所述电池单体(20)的所述第一壁连接。
  8. 根据权利要求1至7中任一项所述的电池模块(100)，其特征在于，所述电池模块(100)还包括：
    N-1个隔板(101)，所述隔板(101)沿所述第一方向延伸且设置于相邻的两列电池单体(20)之间，所述隔板(101)与相邻的两列电池单体(20)中的每个电池单体(20)固定连接；
    其中，所述隔板(101)在所述第一方向上的端部设置有固定结构(102)，所述隔板(101)通过所述固定结构(102)固定于用于容纳所述电池模块(100)的箱体(11)。
  9. 根据权利要求8所述的电池模块(100)，其特征在于，所述固定结构(102)包括固定板(104)，所述固定板(104)与所述隔板(101)的所述端部固定连接，且与位于所述隔板(101)的所述端部的电池单体(20)固定连接。
  10. 一种电池(10)，其特征在于，包括：
    如权利要求1至9任一项所述的电池模块(100)；
    箱体(11)，用于容纳所述电池模块(100)。
  11. 根据权利要求10所述的电池(10)，其特征在于，所述电池模块(100)设置为多个，多个所述电池模块(100)沿所述第二方向排列，相 邻两个所述电池模块(100)之间具有间隙，至少部分所述绝缘条(103)设置于所述间隙内。
  12. 根据权利要求10或11所述的电池(10)，其特征在于，所述绝缘条(103)包括：
    两个第一连接部(1031)，沿所述第二方向相对设置，所述两个第一连接部(1031)分别用于连接相邻两个所述电池模块(100)的所述电池单体(20)的所述第一壁；
    第三连接部(1033)，位于所述两个第一连接部(1031)之间并用于连接所述两个第一连接部(1031)。
  13. 根据权利要求12所述的电池(10)，其特征在于，所述第三连接部(1033)位于所述间隙内。
  14. 一种用电设备，其特征在于，包括权利要求1至13中任一项所述的电池(10)，所述电池(10)用于提供电能。
  15. 一种制备电池的方法(300)，其特征在于，包括：
    提供电池模块(100)，所述电池模块(100)包括N列电池单体(20)，所述N列电池单体(20)中的每列电池单体(20)包括沿第一方向排列的多个电池单体(20)，所述N列电池单体(20)沿第二方向排列，所述第一方向垂直于所述第二方向，N为大于1的整数；绝缘条(103)，所述绝缘条(103)沿所述第一方向延伸，所述绝缘条(103)用于连接所述电池单体(20)的第一壁，所述第一壁为所述电池单体(20)中表面积最大的壁，在第三方向上，所述绝缘条(103)的尺寸小于所述第一壁的尺寸，所述第三方向垂直于所述第一方向和所述第二方向，所述绝缘条(103)与所述第一壁的连接区域包括所述第一壁的焊接区域；
    提供箱体(11)；
    将所述电池模块(100)容纳于所述箱体(11)内。
  16. 一种制备电池的设备(400)，其特征在于，包括：
    提供模块，用于提供电池模块(100)和箱体(11)，所述电池模块(100)包括N列电池单体(20)，所述N列电池单体(20)中的每列电池单体(20)包括沿第一方向排列的多个电池单体(20)，所述N列电池单体(20)沿第二方向排列，所述第一方向垂直于所述第二方向，N为大于1的整数；绝缘条(103)，所述绝缘条(103)沿所述第一方向延伸，所述绝缘条(103)用于连接所述电池单体(20)的第一壁，所述第一壁为所述电池单体(20)中表面积最大的壁，在第三方向上，所述绝缘条(103)的尺寸小于所述第一壁的尺寸，所述第三方向垂直于所述第一方向和所述第二方向，所述绝缘条(103)与所述第一壁的连接区域包括所述第一壁的焊接区域；
    安装模块，用于将所述电池模块(100)容纳于所述箱体(11)内。
PCT/CN2022/071720 2022-01-13 2022-01-13 电池模块、电池、用电设备、制备电池的方法和设备 Ceased WO2023133748A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2022/071720 WO2023133748A1 (zh) 2022-01-13 2022-01-13 电池模块、电池、用电设备、制备电池的方法和设备
CN202280006533.3A CN116325311B (zh) 2022-01-13 2022-01-13 电池模块、电池、用电设备、制备电池的方法和设备
CN202223089558.0U CN219658948U (zh) 2022-01-13 2022-11-21 电池模块、电池和用电设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/071720 WO2023133748A1 (zh) 2022-01-13 2022-01-13 电池模块、电池、用电设备、制备电池的方法和设备

Publications (1)

Publication Number Publication Date
WO2023133748A1 true WO2023133748A1 (zh) 2023-07-20

Family

ID=86822590

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/071720 Ceased WO2023133748A1 (zh) 2022-01-13 2022-01-13 电池模块、电池、用电设备、制备电池的方法和设备

Country Status (2)

Country Link
CN (2) CN116325311B (zh)
WO (1) WO2023133748A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI819481B (zh) 2016-11-16 2023-10-21 美商易諾維公司 具有可壓縮陰極之三維電池
CN116325311B (zh) * 2022-01-13 2025-07-29 宁德时代新能源科技股份有限公司 电池模块、电池、用电设备、制备电池的方法和设备
CN116598728B (zh) * 2023-07-19 2023-10-27 宁德时代新能源科技股份有限公司 电池单体及其制备方法、电池和用电设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2588555Y (zh) * 2002-12-04 2003-11-26 春兰(集团)公司 一种电动车镍氢电池组结构
JP2009134937A (ja) * 2007-11-29 2009-06-18 Sanyo Electric Co Ltd バッテリシステム
DE102011077292A1 (de) * 2011-06-09 2012-12-13 Sb Limotive Company Ltd. Gehäuse für eine galvanische Zelle
JP2018049740A (ja) * 2016-09-21 2018-03-29 株式会社豊田自動織機 電池モジュール

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102507879B1 (ko) * 2015-11-16 2023-03-07 삼성에스디아이 주식회사 이차 전지 모듈
CN208014778U (zh) * 2018-03-30 2018-10-26 宁德时代新能源科技股份有限公司 电池箱体以及电池箱
CN209249577U (zh) * 2018-12-30 2019-08-13 宁德时代新能源科技股份有限公司 一种电池模块及电池包
CN116325311B (zh) * 2022-01-13 2025-07-29 宁德时代新能源科技股份有限公司 电池模块、电池、用电设备、制备电池的方法和设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2588555Y (zh) * 2002-12-04 2003-11-26 春兰(集团)公司 一种电动车镍氢电池组结构
JP2009134937A (ja) * 2007-11-29 2009-06-18 Sanyo Electric Co Ltd バッテリシステム
DE102011077292A1 (de) * 2011-06-09 2012-12-13 Sb Limotive Company Ltd. Gehäuse für eine galvanische Zelle
JP2018049740A (ja) * 2016-09-21 2018-03-29 株式会社豊田自動織機 電池モジュール

Also Published As

Publication number Publication date
CN219658948U (zh) 2023-09-08
CN116325311B (zh) 2025-07-29
CN116325311A (zh) 2023-06-23

Similar Documents

Publication Publication Date Title
CN216872137U (zh) 电池和用电设备
EP4148876B1 (en) Battery, electrical device, and method and device for preparing battery
CN219658948U (zh) 电池模块、电池和用电设备
CN219067027U (zh) 电池和用电设备
CN216872134U (zh) 电池和用电设备
US20240421435A1 (en) Battery cell, battery module, battery, and electric apparatus
US20230275287A1 (en) Battery, power consumption device, and method and device for producing battery
US12212013B2 (en) Battery, electric apparatus, and method and apparatus for manufacturing battery
WO2023159487A1 (zh) 电池、用电设备、制备电池的方法和设备
WO2023155211A1 (zh) 电池、用电设备、制备电池的方法和设备
CN219163609U (zh) 电池和用电设备
KR102951182B1 (ko) 배터리, 전기 장치, 배터리 제조 방법 및 장치
WO2023123048A1 (zh) 电池、用电设备、制备电池的方法和设备
CN223487094U (zh) 电池单体、电池装置及用电装置
WO2026000733A1 (zh) 电池单体、电池及用电装置
WO2024055311A1 (zh) 电池单体、电池及用电设备
WO2023082192A1 (zh) 电池单体、电池、用电装置、制备电池的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22919413

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22919413

Country of ref document: EP

Kind code of ref document: A1

WWG Wipo information: grant in national office

Ref document number: 202280006533.3

Country of ref document: CN