CN115956321A

CN115956321A - Battery, electric equipment, method and equipment for preparing battery

Info

Publication number: CN115956321A
Application number: CN202280005754.9A
Authority: CN
Inventors: 侯羽佳; 陈兴地; 王鹏
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2023-04-11
Anticipated expiration: 2042-01-13
Also published as: WO2023133747A1; CN115956321B; CN219203366U

Abstract

The embodiment of the application provides a battery (10), an electric device, a method (3000) for preparing the battery and a device (600). The battery (10) includes: a battery cell (20); the battery box comprises a box body (11), wherein the box body (11) comprises a first box body part (111) and a second box body part (112), the first box body part (111) covers the second box body part (112) to form a containing cavity for containing the battery monomer (20), and the battery monomer (20) is contained in the containing cavity; a fixing plate (300) for fixing the battery cell (20) to the second case portion (112); a first connector (400) for connecting the first tank part (111) and the fixing plate (300). According to the technical scheme, the performance of the battery can be improved.

Description

Battery, electric equipment, method and equipment for preparing battery

Technical Field

The application relates to the technical field of batteries, in particular to a battery, electric equipment, a method for preparing the battery and equipment.

Background

With the increasing environmental pollution, the new energy industry is receiving more and more attention. In the new energy industry, battery technology is an important factor regarding its development.

The development of battery technology requires consideration of various design factors, such as energy density, cycle life, safety performance, etc. The improvement of the energy density of the battery also puts higher demands on the light weight of the battery itself, and therefore, how to provide a battery with better performance is a problem to be solved urgently.

Disclosure of Invention

The application provides a battery, electric equipment, a method and equipment for preparing the battery, which can guarantee the structural strength of the battery, and therefore the performance of the battery can be improved.

In a first aspect, a battery is provided, comprising: a battery cell; the battery box comprises a box body, a battery box body and a battery box, wherein the box body comprises a first box body part and a second box body part, the first box body part covers the second box body part to form an accommodating cavity for accommodating the battery monomer, and the battery monomer is accommodated in the accommodating cavity; a fixing plate for fixing the battery cell to the second case portion; and the first connecting piece is used for connecting the first box body part and the fixing plate.

In the embodiment of the application, by providing the first box portion and the second box portion, the battery cell is accommodated in the accommodating cavity formed by the first box portion and the second box portion, and the battery cell is fixed to the second box portion through the fixing plate, and the first connecting member connects the first box portion and the fixing plate. Therefore, the first box body part, the second box body part and the single battery are connected through the first connecting piece to form a whole, so that collision and friction between the first box body part and the single battery and other parts are reduced, and the rigidity and the structural strength of the battery are improved.

In a possible implementation manner, the first connecting member includes a first connecting portion and a second connecting portion connected to each other, the first connecting portion is configured to be connected to a first wall of the first case portion, the first wall is configured to cover the battery cell and the fixing plate, and the second connecting portion is configured to be connected to the fixing plate.

The first connecting portion is connected with the first wall of the first tank portion, the second connecting portion is connected with the fixing plate, and the first connecting portion and the second connecting portion are connected with each other so that the first wall can be connected with the fixing plate. In this way, the entire first wall covering the battery cells and the fixing plate can form a fixed connection structure with the fixing plate.

In a possible implementation, a first face of the first connection portion facing the first wall is provided with a recess for storing an adhesive for adhering the first wall with the first face.

The concave portion is arranged on the first surface, facing the first wall, of the first connecting portion, the concave portion can store the adhesive, the first wall and the first surface are bonded together, and the connecting strength between the first connecting piece and the first box portion is improved.

In one possible implementation, a second face of the first connection portion, which is away from the first wall, abuts the battery cell.

The second surface of the first connecting part, which is far away from the first wall, is abutted to the single battery, and the single battery plays a supporting role for the first connecting part, so that the first connecting part is more tightly and firmly connected with the first wall.

In a possible implementation manner, the second connecting portion is provided with a clamping groove, and the second connecting portion is inserted into the fixing plate through the clamping groove to be connected with the fixing plate.

The clamping groove is formed in the second connecting portion, the second connecting portion can be connected with the fixing plate in an inserting mode through the clamping groove, and the second connecting portion is connected with the fixing plate. The connecting mode is simple and convenient, and the second connecting part and the fixing plate are easy to mount and dismount.

In a possible implementation manner, the clamping groove is further used for filling an adhesive so that the clamping groove is adhesively connected with the fixing plate.

Through filling the bonding agent in the draw-in groove, the second connecting portion can also bond with the fixed plate through the bonding agent in the draw-in groove, has further strengthened the joint strength between second connecting portion and the fixed plate.

In a possible implementation manner, a glue storage groove is formed in a side surface, facing the battery cell, of the second connecting portion, and the glue storage groove is used for storing a binder, so that when the second connecting portion is connected to the fixing plate, the binder in the glue storage groove overflows to bind the second connecting portion and the battery cell.

Glue storage grooves are formed in the side faces, facing the battery monomers, of the second connecting portions and used for storing adhesives, when the first connecting portions are connected to the fixing plate, the adhesives in the glue storage grooves overflow to bond the second connecting portions and the battery monomers, accordingly, the connecting strength between the second connecting portions and the battery monomers is increased, and the overall strength of the battery is further increased.

In a possible implementation manner, an end portion of the second connecting portion far away from the first connecting portion is provided with a cantilever, and the cantilever is obliquely arranged from the end portion to the first connecting portion to form the glue storage tank with an opening facing the first connecting portion.

The cantilever is arranged at the end part of the second connecting part far away from the first connecting part and inclines towards the first connecting part from the end part to form a glue storage groove with an opening towards the first connecting part, so that when the second connecting part is connected with the fixing plate, the cantilever is extruded towards the second connecting part, and therefore the adhesive in the glue storage groove overflows to bond the second connecting part and the single battery.

In a possible implementation manner, a through hole is provided on the cantilever, so that when the second connection portion is connected to the fixing plate, the adhesive in the adhesive storage tank overflows from the through hole to bond the second connection portion and the battery cell.

Through set up the through-hole on the cantilever, the adhesive that stores up in the gluey groove can spill over from the through-hole, has increased the bonding area between second connecting portion and the battery monomer, is favorable to making the bonding between second connecting portion and the battery monomer more firm.

In one possible implementation, the battery includes a battery module including: the battery cells in each of the N rows of the battery cells comprise a plurality of battery cells arranged along a first direction, the N rows of the battery cells are arranged along a second direction, N is an integer greater than 1, and the first direction is perpendicular to the second direction; the fixing plates extend along the first direction and are arranged between two adjacent rows of the single batteries, and the fixing plates are fixedly connected with each single battery in the two adjacent rows of the single batteries; and the end part of the fixing plate in the first direction is provided with a fixing structure, and the fixing plate is fixed on the second box body part through the fixing structure.

And a fixing plate is arranged between two adjacent rows of battery cells of the battery module and fixedly connected with each battery cell in the two rows of battery cells, a fixing structure is arranged at the end part of the fixing plate, and the fixing plate is fixed on the second box body part through the fixing structure. In this way, each single battery in the battery is fixed to the second box body part by the fixing plate and the fixing structure, so that each single battery can transmit the load of the single battery to the second box body part, and the structural strength of the battery is guaranteed; under the condition, the outer side of the battery module is not provided with a side plate, the middle part of the second box body part is not provided with a beam and other structures, the space utilization rate in the battery can be improved to a greater extent, and the energy density of the battery is improved.

In one possible implementation manner, the battery includes a plurality of the battery modules, the plurality of the battery modules are arranged along the second direction, and a gap is formed between adjacent battery modules.

In one battery module, a fixing plate is arranged between two rows of battery cells, and a fixing plate is not arranged between adjacent battery modules. Therefore, on one hand, the fixing plates in the battery can be reduced as much as possible, and on the other hand, a certain gap can be formed between the adjacent battery modules to provide an expansion space for the battery cells.

In a possible implementation manner, the battery further includes a second connecting member, and a portion of the second connecting member is disposed in the gap and is used for connecting the first box portion and the battery cells on two sides of the gap.

By arranging the second connecting member in the gap, that is, between two adjacent battery modules, it is possible to further enhance the connection between the first case portion and the battery cell on the one hand, and also to isolate friction and collision between the two battery modules due to relative movement on the other hand.

In one possible implementation manner, the fixing structure includes an end plate, and the end plate is fixedly connected to the end portion of the fixing plate and fixedly connected to the battery cell located at the end portion of the fixing plate. In this way, the fixing effect on the battery cell can be further enhanced.

In one possible implementation, the battery further includes: a bus member for electrically connecting the battery cells; wherein a portion of the first connector is disposed between adjacent bus bars. Thus, the first connecting piece can play a role in isolating adjacent bus parts, and the risk of short circuit is reduced.

In a second aspect, an electrical device is provided, which includes the battery in the first aspect or any possible implementation manner of the first aspect, where the battery is configured to supply power to the electrical device.

In a third aspect, a method for preparing a battery is provided, comprising: providing a battery cell; providing a box body, wherein the box body comprises a first box body part and a second box body part, and the first box body part covers the second box body part to form a containing cavity for containing the single battery; providing a fixing plate; providing a first connecting piece; the single battery is accommodated in the accommodating cavity, the single battery is fixed to the second box body part through the fixing plate, and the first box body part and the fixing plate are connected through the first connecting piece.

In a fourth aspect, there is provided an apparatus for manufacturing a battery, comprising: the battery pack comprises a providing module, a battery cell, a box body, a fixing plate and a first connecting piece, wherein the box body comprises a first box body part and a second box body part, and the first box body part covers the second box body part to form a containing cavity for containing the battery cell; the mounting module is used for accommodating the single battery in the accommodating cavity, fixing the single battery on the second box body part through the fixing plate, and connecting the first box body part and the fixing plate through the first connecting piece.

According to the technical scheme, the first box body portion and the second box body portion are arranged, the single batteries are contained in the containing cavities formed by the first box body portion and the second box body portion, the single batteries are fixed to the second box body portion through the fixing plates, and the first connecting piece is connected with the first box body portion and the fixing plates. Like this, the first box portion and the second box portion and the battery monomer of battery lead to through first connecting piece connection formation a whole to reduce collision and friction between parts such as first box portion and battery monomer, promoted the rigidity and the structural strength of battery.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

FIG. 1 is a schematic view of a vehicle according to 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 according to an embodiment of the present application;

FIG. 5 is a schematic view of a first connector of an embodiment of the present application;

FIG. 6 is a cross-sectional view of the first connector of FIG. 5;

FIG. 7 is a schematic view of another first connector of an embodiment of the present application;

FIG. 8 is a cross-sectional view of the first connector of FIG. 7;

fig. 9 is a schematic view of a battery module according to an embodiment of the present application;

fig. 10 is an exploded schematic view of the battery module of fig. 9;

FIG. 11 is a schematic view of yet another first connector of an embodiment of the present application;

fig. 12 is a schematic flow chart of a method of making a battery according to one embodiment of the present application;

fig. 13 is a schematic block diagram of an apparatus for manufacturing a battery according to an embodiment of the present application.

In the drawings, the figures are not drawn to scale.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application and are not intended to limit the scope of the application, i.e., the application is not limited to the described embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. "vertical" is not strictly vertical but is within the tolerance of the error. "parallel" is not strictly parallel but within the tolerance of the error.

The following description is given with the directional terms as they are used in the drawings and not intended to limit the specific structure of the present application. In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

The term "and/or" in this application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this application generally indicates that the former and latter related objects are in an "or" relationship.

In the present application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in an encapsulation manner: the cylindrical battery monomer, the square battery monomer and the soft package battery monomer are not limited in the embodiment of the application.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery pack or the like. Batteries generally include a case for enclosing one or more battery cells. The box can avoid liquid or other foreign matters to influence the charging or discharging of battery monomer.

The battery monomer comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive plate, a negative plate and an isolating membrane. The battery cell mainly depends on metal ions moving between the positive plate and the negative plate to work. The positive plate comprises a positive current collector and a positive active substance layer, wherein the positive active substance layer is coated on the surface of the positive current collector, the current collector which is not coated with the positive active substance layer protrudes out of the current collector which is coated with the positive active substance layer, and the current collector which is not coated with the positive active substance layer is used as a positive pole lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece includes negative current collector and negative pole active substance layer, and the negative pole active substance layer coats in the surface of negative current collector, and the mass flow body protrusion in the mass flow body of coating the negative pole active substance layer of uncoated negative pole active substance layer, the mass flow body of uncoated negative pole active substance layer is as negative pole utmost point ear. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the fuse is not fused when a large current is passed, the number of the positive electrode tabs is multiple and the positive electrode tabs are stacked together, and the number of the negative electrode tabs is multiple and the negative electrode tabs are stacked together. The material of the isolation film can be polypropylene (PP), polyethylene (PE) or the like. In addition, the electrode assembly may have a winding structure or a lamination structure, and the embodiment of the present application is not limited thereto.

In order to meet different power requirements, a battery may include a plurality of battery cells, wherein the plurality of battery cells may be connected in series or in parallel or in series-parallel, and the series-parallel refers to a mixture of series connection and parallel connection. Alternatively, a plurality of battery cells may be connected in series or in parallel or in series-parallel to form a battery module, and a plurality of battery modules may be connected in series or in parallel or in series-parallel to form a battery. That is to say, a plurality of battery cells may directly constitute a battery, or may be first constituted into a battery module, and then the battery module is constituted into a battery. The battery is further arranged in the electric equipment to provide electric energy for the electric equipment.

The development of battery technology should take into consideration various design factors such as energy density, cycle life, discharge capacity, charge and discharge rate, safety, etc. In order to increase the energy density of the battery, a higher demand is placed on weight reduction, and therefore, the material used for the upper cover of the battery itself has no structural load-bearing capacity. However, when the battery is subjected to vibration, impact, or the like during movement, the upper cover may be deformed, broken, or the like due to its low rigidity.

In view of this, the embodiment of the present application provides a battery, which includes a battery cell, a case, a fixing plate and a first connecting member. The box includes first box portion and second box portion, and first box portion lid closes the chamber that holds that second box portion formed to hold this battery monomer, and battery monomer holds in this holds the chamber, fixes battery monomer at the second box portion through the fixed plate, connects first box portion and fixed plate through first connecting piece. In this way, the first case portion is connected to the fixing plate in the second case portion by the first connecting member, so that the first case portion, the second case portion, and the battery cell accommodated in the case are connected to form one body. Therefore, the load acting on the first box body part can be transmitted to the whole battery, damage caused by low structural strength of the first box body part is avoided, and friction and collision between the first box body part and a battery monomer and other parts are also avoided; moreover, the battery is integrated, and the overall structural strength of the battery is improved.

The technical scheme described in the embodiment of the application is applicable to various devices using batteries, such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships, spacecrafts and the like, and the spacecrafts comprise airplanes, rockets, space shuttles, spacecrafts and the like.

It should be understood that the technical solutions described in the embodiments of the present application are not limited to be applied to the above-described devices, but may also be applied to all devices using batteries, and for brevity of description, the following embodiments are all described by taking an electric vehicle as an example.

For example, as shown in fig. 1, which is a schematic structural diagram of a vehicle 1 according to an embodiment of the present disclosure, the vehicle 1 may be a fuel-oil vehicle, a gas-fired vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid electric vehicle, or an extended range vehicle. The vehicle 1 may be provided with a motor 40, a controller 30 and a battery 10 inside, and the controller 30 is used for controlling the battery 10 to supply power to the motor 40. For example, the battery 10 may be provided at the bottom or the head or tail of the vehicle 1. The battery 10 may be used for power supply of the vehicle 1, for example, the battery 10 may be used as an operation power source of the vehicle 1 for a circuit system of the vehicle 1, for example, for power demand for operation in starting, navigation, and running of the vehicle 1. In another embodiment of the present application, the battery 10 may be used not only as an operation power source of the vehicle 1 but also as a driving power source of the vehicle 1 instead of or in part of fuel or natural gas to provide driving power to the vehicle 1.

In order to meet different power usage requirements, the battery 10 may include a plurality of battery cells. For example, as shown in fig. 2, the battery 10 may include a plurality of battery cells 20 for a structural schematic diagram of the battery 10 according to an embodiment of the present disclosure. The battery 10 may further include a case 11, the inside of the case 11 is a hollow structure, and the plurality of battery cells 20 are accommodated in the case 11. For example, a plurality of battery cells 20 are disposed in the case 11 in parallel or in series or in a combination of series and parallel.

Optionally, the battery 10 may also include other structures, which are not described in detail herein. For example, the battery 10 may further include a bus member 12, and the bus member 12 is used to electrically connect a plurality of battery cells 20, such as in parallel or in series-parallel. Specifically, the bus member 12 may achieve electrical connection between the battery cells 20 by connecting electrode terminals of the battery cells 20. Further, the bus bar member 12 may be fixed to the electrode terminals of the battery cells 20 by welding. The electric energy of the plurality of battery cells 20 can be further led out through the case 11 by the conductive mechanism. Alternatively, the current conducting means can also belong to the bus bar part 12.

The number of the battery cells 20 may be set to any number according to various power requirements. A plurality of battery cells 20 may be connected in series, parallel, or series-parallel to achieve greater capacity or power. Since the number of the battery cells 20 included in each battery 10 may be large, the battery cells 20 may be arranged in groups for convenience of installation, each group of the battery cells 20 constituting the battery module 50. The number of the battery cells 20 included in the battery module 50 is not limited and may be set as required. The battery may include a plurality of battery modules 50, and the battery modules 50 may be connected in series, parallel, or series-parallel.

As shown in fig. 3, which is a schematic structural diagram of a battery cell 20 according to an embodiment of the present disclosure, the battery cell 20 includes one or more electrode assemblies 22, a case 211, and a cover plate 212. The housing 211 and the cover 212 form an outer case or battery case 21. The walls of the housing 211 and the cover plate 212 are referred to as the walls of the battery cell 20, wherein for a cuboid battery cell 20, the walls of the housing 211 include a bottom wall and four side walls. The case 211 is determined according to the shape of one or more electrode assemblies 22 after combination, for example, the case 211 may be a hollow rectangular parallelepiped, or a square, or a cylinder, and one of the faces of the case 211 has an opening so that one or more electrode assemblies 22 can be placed in the case 211. For example, when the housing 211 is a hollow rectangular parallelepiped or square, one of the planes of the housing 211 is an open plane, i.e., the plane has no wall body so that the housing 211 communicates inside and outside. When the housing 211 may be a hollow cylinder, an end surface of the housing 211 is an open surface, that is, the end surface has no wall body so that the housing 211 communicates with the inside and the outside. The cap plate 212 covers the opening and is connected with the case 211 to form a closed cavity in which the electrode assembly 22 is placed. The case 211 is filled with an electrolyte, such as an electrolytic solution.

The battery cell 20 may further include two electrode terminals 214, and the two electrode terminals 214 may be disposed on the cap plate 212. The cap plate 212 is generally in the shape of a flat plate, and two electrode terminals 214 are fixed to the flat surface of the cap plate 212, the two electrode terminals 214 being a positive electrode terminal 214a and a negative electrode terminal 214b, respectively. One connecting member 23, which may also be referred to as a current collecting member 23, is disposed at each of the electrode terminals 214, between the cap plate 212 and the electrode assembly 22, for electrically connecting the electrode assembly 22 and the electrode terminals 214.

As shown in fig. 3, each electrode assembly 22 has a first tab 221a and a second tab 222a. The first tab 221a and the second tab 222a have opposite polarities. For example, when the first tab 221a is a positive electrode tab, the second tab 222a is a negative electrode tab. The first tabs 221a of the one or more electrode assemblies 22 are connected to one electrode terminal through one connecting member 23, and the second tabs 222a of the one or more electrode assemblies 22 are connected to the other electrode terminal through the other connecting member 23. For example, the positive electrode terminal 214a is connected to the positive electrode tab through one connecting member 23, and the negative electrode terminal 214b is connected to the negative electrode tab through the other connecting member 23.

In the battery cell 20, the electrode assembly 22 may be provided singly or in plurality according to actual use requirements, and as shown in fig. 3, 4 independent electrode assemblies 22 are provided in the battery cell 20.

The battery cell 20 may further include a pressure relief mechanism 213. The pressure relief mechanism 213 is activated to relieve the internal pressure or temperature of the battery cell 20 when the internal pressure or temperature reaches a threshold value.

The pressure relief mechanism 213 may be any of various possible pressure relief structures, which are not limited in the embodiments of the present application. For example, the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism configured to be able to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value; and/or, pressure relief mechanism 213 may be a pressure sensitive pressure relief mechanism configured to rupture when the internal air pressure of battery cell 20 in which pressure relief mechanism 213 is disposed reaches a threshold value.

Fig. 4 is a schematic diagram of a battery 10 according to an embodiment of the present application. Fig. 5 is a schematic view of a first connector according to an embodiment of the present application. Fig. 6 is a cross-sectional view of the first connector of fig. 5. Fig. 7 is a schematic view of another first connector according to an embodiment of the present application. Fig. 8 is a sectional view of the first connector of fig. 7. Fig. 9 is a schematic view of a battery module according to an embodiment of the present application. Fig. 10 is an exploded schematic view of the battery module of fig. 9. As shown in fig. 4 to 10, the battery 10 includes a battery cell 20, a case 11, a fixing plate 300, and a first coupling member 400. The box body 11 includes a first box body portion 111 and a second box body portion 112, the first box body portion 111 covers the second box body portion 112 to form a containing cavity for containing the battery unit 20, and the battery unit 20 is contained in the containing cavity. The fixing plate 300 is used to fix the battery cell 20 to the second case portion 112. The first connector 400 is used to connect the first tank portion 111 and the fixing plate 300.

The housing 11 may have various structures. In some embodiments, the case 11 may include a first case portion 111 and a second case portion 112, and the first case portion 111 and the second case portion 112 cover each other to define a receiving cavity for receiving the battery cell 20. The second tank portion 112 may be a hollow structure with one open end, the first tank portion 111 may be a plate-shaped structure, and the first tank portion 111 covers the open side of the second tank portion 112, so that the first tank portion 111 and the second tank portion 112 jointly define an accommodating cavity. The first casing section 111 and the second casing section 112 may be both hollow structures with one side open, and the open side of the first casing section 111 may cover the open side of the second casing section 112. Of course, the first and

second casing portions

111 and 112 may be various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

The fixing plate 300 is used to fix the battery cell 20 to the second case portion 112. In some embodiments, the fixing plate 300 may be directly or indirectly fixedly connected to the battery cell 20 and the second housing portion 112, so that the fixing plate 300, the battery cell 20, and the second housing portion 112 form a whole. The fixing plate 300, the battery cell 20, and the second case portion 112 may be connected by bonding, welding, riveting, clamping, etc., as long as the three can be connected with each other, which is not limited in the embodiment of the present application.

The first connector 400 is used to connect the first tank portion 111 and the fixing plate 300, and the first connector 400 may be fixedly connected to both the first tank portion 111 and the fixing plate 300, so that the first tank portion 111, the first connector 400 and the fixing plate 300 form a whole. The three can be connected by bonding, welding, riveting, clamping and the like, and the embodiment of the application does not limit the connection.

In the embodiment of the present application, the first case portion 111 is connected to the fixing plate 300 in the second case portion 112 by the first connector 400, and the battery cell 20 is fixed to the second case portion by the fixing plate 300, so that the first case portion 111, the second case portion 112, and the battery cell 20 accommodated in the accommodating cavity are connected to form a whole by the first connector 400, that is, the battery 10 is a whole. In this way, when the battery 10 is carried or the battery 10 is subjected to a collision, the load acting on the first case portion 111 can be transmitted to the entire battery 10, thereby avoiding the loss due to the low structural strength of the first case portion 111 itself, and also avoiding the friction and collision between the first case portion 111 and the battery cell 20 and other parts in the battery 10; also, the battery 10 is formed as a single body, improving the overall structural strength of the battery 10.

As shown in fig. 5 and 6, the first connector 400 includes a first connection portion 401 and a second connection portion 402 connected to each other, and the first connection portion 401 is used to connect with the first wall of the first tank portion 111. The first wall is used to cover the battery cell 20 and the fixing plate 300, and the second connection part 402 is used to be connected with the fixing plate 300.

The first connector 400 includes a first connection portion 401 and a second connection portion 402 connected to each other. Alternatively, in an embodiment of the present application, the first connection portion 401 and the second connection portion 402 may be perpendicular to each other, and the first connection portion 401 and the second connection portion 402 may also form a T shape.

Optionally, the first connection portion 401 and the second connection portion 402 may be in a strip shape or a cross shape, and the structure of the first connection portion 401 may be specifically set as required, which is not limited in this embodiment of the application.

Alternatively, in an embodiment of the present application, when the first connection part 401 and the second connection part 402 have a cross shape, a portion of the second connection part 402 extending in the second direction may be inserted between adjacent battery cells 20 of the same column of battery cells 20, and a portion of the second connection part 402 extending in the first direction may be fixedly connected to the fixing plate 300.

The first connecting portion 401 is for connecting with a first wall of the first case portion 111 for covering the battery cell 20 and the fixing plate 300. In some embodiments, the first casing portion 111 is a hollow structure with one side open. For example, the first tank portion 111 includes a first side surface 111a, a second side surface 111b adjacent to the first side surface, a third side surface 111c disposed opposite to the first side surface, a fourth side surface 111d disposed opposite to the second side surface, and a top surface 111e. The first wall of the first tank portion 111 is the inner side of the top surface 111e, i.e., on the side of the top surface 111e that is open toward the first tank portion 111. In other embodiments, the first tank portion 111 may also be a plate-shaped structure, the second tank portion 112 may be a hollow structure with one side open, and the first wall may be a side of the first tank portion 111 open to the second tank portion 112.

The first connection portion 401 is connected to the first wall of the first housing portion 111, the second connection portion 402 is connected to the fixing plate 300, and the first connection portion 401 and the second connection portion 402 are connected to each other, so that the first wall and the fixing plate 300 are connected. In this way, the entire first wall covering the battery cells 20 and the fixing plate 300 can form a fixed coupling structure with the fixing plate 300.

In some embodiments, a first face 401a of the first connection portion 401 facing the first wall is provided with a recess 4011, the recess 4011 being for storing an adhesive for adhering the first wall with the first face 401a.

The first face 401a faces the first wall and the first face 401a is provided with a recess 4011, which recess 4011 is used for storing adhesive and can be formed by an extrusion process. When the first connection portion 401 is connected to the first wall, a sufficient amount of adhesive may be placed in the recess 4011, and the adhesive overflows to the first face 401a, achieving adhesion of the first wall to the first face 401a.

By providing the first face 401a of the first connection portion 401 facing the first wall with the recess 4011, the recess 4011 is used for storing an adhesive for bonding the first wall and the first face 401a, and the connection strength between the first connector 400 and the first case portion 111 is further improved.

In some embodiments, a second face 401b of the first connection portion 401 distal from the first wall abuts the battery cell 20.

The second surface 401b is disposed opposite to the first surface 401a and located on a side of the first connection portion 401 away from the first wall, and the second surface 401b abuts against the top surface 201a of the battery cell 20. In this way, the battery cell 20 supports the first connection portion 401, so that the connection between the first connection portion 401 and the first wall is more tightly and firmly achieved.

Optionally, in an embodiment of the present application, an adhesive may be further coated on the second surface 401b to adhere the second surface 401b to the top surface 201a of the battery cell 20, so as to increase the connection strength between the first connection portion 401 and the battery cell 20.

In some embodiments, the second connection part 402 is provided with a card slot 411, through which the second connection part 402 is inserted into the fixing plate 300 to be connected with the fixing plate 300.

In some embodiments, the card slot 411 includes a first clamping surface 411a and a second clamping surface 411b, and the first clamping surface 411a and the second clamping surface 411b respectively abut against the fixing plate 300 to connect the second connecting portion 402 and the fixing plate 300.

The second connecting portion 402 is connected to the fixing plate 300 through the slot 411, and this connection is simple and convenient, and the mounting and dismounting between the two are easy to achieve.

In some embodiments, the slot 411 is also used to fill with an adhesive to adhesively connect the slot 411 to the mounting plate 300. This connection further enhances the connection strength between the second connection portion 402 and the fixing plate 300.

Optionally, in an embodiment of the present application, the second connection portion 402 further includes a first side 402a and a second side 402b, and the first side 402a and the second side 402b are coated with an adhesive to connect the second connection portion 402 and the battery cell 20, so as to increase the connection strength between the second connection portion 402 and the battery cell 20.

As shown in fig. 7 and 8, a side surface of the second connection part 402 facing the battery cell 20 is provided with a glue storage groove 421, and the glue storage groove 421 is used for storing an adhesive, so that when the second connection part 402 is connected to the fixing plate 300, the adhesive in the glue storage groove 421 overflows to adhere the second connection part 402 and the battery cell 20.

When the second connection part 402 is connected to the fixing plate 300, the glue storage groove 421 is pressed, and the adhesive in the glue storage groove 421 overflows, so that the first side 402a and the second side 402b of the second connection part 402 are respectively adhered to the battery cells 20. The adhesion of the second connection portion 402 to the battery cell 20 makes the connection between the first case portion 111 and the second case portion 112 stronger, further increasing the overall strength of the battery 10.

In some embodiments, an end of the second connection portion 402 far from the first connection portion 401 is provided with a cantilever 4021, and the cantilever 4021 is obliquely disposed from the end toward the first connection portion 401 to form the glue storage tank 421 with an opening facing the first connection portion 401.

When the second connection part 402 is connected to the fixing plate 300, the cantilever 4021 is pressed toward the second side 402b, so that the adhesive in the adhesive storage tank 421 overflows to bond the second connection part 402 and the battery cell 20. In some embodiments, the cantilever 4021 may be disposed on only one side of the second connection portion 402, such as the first side 402a or the second side 402b, or disposed on both sides of the second connection portion 402, such as the first side 402a and the second side 402b, which is not limited in this embodiment.

In some embodiments, through holes are provided on the cantilevers 4021, so that when the second connection part 402 is connected to the fixing plate 300, the adhesive in the adhesive storage groove 421 overflows from the through holes to bond the second connection part 402 and the battery cell 20.

The through holes may be arranged along the extending direction of the cantilever 4021, and the distance between each through hole may be arranged according to actual conditions, which is not limited in the embodiment of the present application.

In the process of connecting the second connecting part 402 and the fixing plate 300, after the adhesive in the adhesive storage tank 421 overflows from the through hole, one side of the cantilever 4021 facing the battery cell 20, namely the cantilever side 4021a, is bonded to the battery cell 20, and simultaneously, the first side 402a and the second side 402b of the second connecting part 402 are also bonded to the battery cell 20, so that the bonding area between the second connecting part 402 and the battery cell 20 is increased, and the bonding between the two parts is firmer.

As shown in fig. 9 and 10, the battery 10 includes a battery module 50, and the battery module 50 includes N rows of battery cells 20 and N-1 fixing plates 300. Each of the N rows of the battery cells 20 includes a plurality of battery cells 20 arranged in a first direction, the N rows of the battery cells are arranged in a second direction, N is an integer greater than 1, and the first direction is perpendicular to the second direction. The fixing plate 300 extends in the first direction and is disposed between two adjacent rows of the battery cells 20, and the fixing plate 300 is fixedly connected to each battery cell 20 of the two adjacent rows of the battery cells 20. The fixing plate 300 is provided with a fixing structure 302 at an end in the first direction, and the fixing plate 300 is fixed to the second tank portion 402 by the fixing structure 302.

Each of the N rows of the battery cells 20 is arranged in a first direction, wherein the first direction may be an x direction. The N rows of the battery cells 20 are arranged along a second direction, wherein the second direction may be a y direction, and the x direction and the y direction are perpendicular to each other.

The battery module 50 includes N rows of the battery cells 20 and N-1 fixing plates 300, that is, the fixing plates 300 are disposed inside the battery module 50, and the fixing plates 300 are not disposed outside the battery module 50. For example, one fixing plate 300 is disposed between two rows of the battery cells 20, two fixing plates 300 are disposed between three rows of the battery cells 20, and so on. With this arrangement, a smaller number of fixing plates 300 can be used, so that each battery cell 20 in the battery module 100 can be fixedly connected by the fixing plates 300.

The fixing structures 302 may be disposed at both ends of the fixing plate 300 in the x direction. Fixing plate 300 is fixed to second case 112 by fixing structure 302, thereby fixing battery module 50 to second case 112. As described above, each battery cell 20 in the battery module 50 is fixedly connected by the fixing plate 300, and each battery cell 20 can be fixedly connected with the second case portion 112 through the fixing structure 302.

A fixing plate 300 is disposed between two adjacent rows of the battery cells 20 of the battery module 50, the fixing plate 300 is fixedly connected to each battery cell 20 of the two rows of the battery cells 20, a fixing structure 302 is disposed at an end of the fixing plate 300, and the fixing plate 300 is fixed to the second case portion 112 by the fixing structure 302. In this way, each battery cell 20 in the battery 10 is fixed to the second case portion 112 by the fixing plate 300 and the fixing structure 302, and thus each battery cell 20 can transmit its load to the second case portion 112, ensuring the structural strength of the battery 10; in this case, no side plate may be disposed outside the battery module 50, and no beam or other structure is disposed in the middle of the second box portion 112, so that the space utilization rate inside the battery can be increased to a large extent, and the energy density of the battery can be increased.

In some embodiments, the fixing plate 300 may be fixedly connected to each battery cell 20 in two adjacent rows of battery cells 20 by adhesion. For example, in an embodiment of the present application, the fixing plate 300 and each battery cell 20 in two adjacent rows of battery cells 20 may be adhered by a structural adhesive, but the embodiment of the present application is not limited thereto.

Alternatively, adjacent battery cells 20 in each of the N rows of battery cells 20 may also be bonded, for example, by structural adhesive 310, but the present embodiment is not limited thereto. The fixing effect of the battery cells 20 may be further enhanced by fixing between the adjacent battery cells 20 in each row of the battery cells 20.

Alternatively, the fixing plate 300 may be a metal plate, for example, a steel plate or an aluminum plate, or may also be a plastic plate, and the material of the fixing plate 300 may also be a composite material, for example, another material is coated on the surface of the metal plate, which is not limited in this embodiment of the present invention.

Alternatively, the thickness of the fixing plate 300 may be 0.1-0.5mm, for example, in one embodiment of the present application, the thickness of the fixing plate may be 0.2-0.4mm. The fixing plate 300 having such a thickness can reduce the space occupied by the fixing plate 300 while securing the strength.

In some embodiments, the battery 10 includes a plurality of battery modules 50, the plurality of battery modules 50 being arranged in the second direction with a gap between adjacent battery modules 50.

A plurality of battery modules 50 may be arranged in the y-direction with a certain gap between adjacent battery modules 50 without the fixing plate 300. That is, in one battery module 50, the fixing plate 300 is provided between two rows of the battery cells 20, but the fixing plate 300 is not provided between the adjacent battery modules 50. In this way, the fixing plate 300 inside the battery 10 may be reduced as much as possible, and a certain gap may be formed between the adjacent battery modules 50 to provide an expansion space for the battery cells 20.

In some embodiments, the battery 10 further includes a second connector, portions of which are disposed within the gap for connecting the first case portion 111 and the battery cells 20 on both sides of the gap.

The second connector may have a similar structure to the first connector 400, and details are not described herein, and reference may be made to the above embodiments. It should be understood that the second connector need not be provided with a slot in the absence of the fixation plate 300 in the gap.

Optionally, in an embodiment of the present application, the second connector includes a first connection portion and a second connection portion, the first connection portion of the second connector is connected to the first case portion 111, and the second connection portion of the second connector is connected to the battery cells 20 on both sides of the gap. The second connection member may be partially disposed in the gap, and the second connection portion of the second connection member may be inserted into the gap, and the second connection portion of the second connection member may be respectively abutted against the battery cells 20 at both sides of the gap. The second connection member is provided to isolate friction and collision between the two battery modules 50 due to relative movement, and further enhance the connection strength between the first case portion 111 and the battery cells 20.

In some embodiments, the fixing structure 302 includes an end plate 304, and the end plate 304 is fixedly connected to an end of the fixing plate 300 and fixedly connected to the battery cell 20 located at the end of the fixing plate 300. For example, for the rectangular parallelepiped battery cell 20, the end plates 304 may be vertically connected to the fixing plate 300 and respectively connected to two adjacent side walls of the rectangular parallelepiped battery cell 20 with the fixing plate 300, thereby further enhancing the fixing effect of the battery cell 20.

Alternatively, the end plate 304 may be of the same material as the fixation plate 300, e.g., metal, plastic, or composite material. The end plate 304 may also have the same thickness as the fixing plate 300. The end plate 304 may also be made of a different material or thickness than the fixing plate 300, for example, the end plate 304 may have a higher strength or thickness, but the embodiment of the present invention is not limited thereto.

Optionally, the connection mode between the fixing plate 300 and the end plate 304 may be a connection mode such as resistance welding, resistance riveting, SPR riveting, locking bolt or clamping; the end plate 304 may also be fixed to the box body by a connection method such as resistance welding, resistance riveting, SPR riveting, lock bolt or clamping, but the embodiment of the present application is not limited thereto.

Alternatively, the end plate 304 and the battery cell 20 may be fixedly connected by bonding, for example, structural adhesive, but the embodiment of the present application is not limited thereto.

In some embodiments, battery 10 may also include another battery module. The battery module includes a plurality of battery cells 20, side plates and/or end plates. The side plates and/or the end plates, by which the battery module is fixed to the second case portion 112, are used to surround the plurality of battery cells 20 to fix the plurality of battery cells 20, and the fixing plate 300 is the side plate and/or the end plate.

Optionally, in an embodiment of the present application, the battery cells 20 in each row of the battery cells 20 in the plurality of battery cells 20 are arranged along a first direction, each row of the battery cells 20 is arranged along a second direction, and the plurality of battery cells 20 form a battery cell group. A side plate is arranged on the outer side of the battery monomer group along the first direction; and an end plate is arranged on the outer side of the battery cell group along the second direction. In one possible implementation, the fixing plate 300 may be a side plate through which the battery module is fixed to the second case portion 112, the second connection portion 402 of the first connector 400 may be inserted into a gap between the battery cell group and the side plate, and the first connection portion 401 of the first connector 400 is connected to the first case portion 111, so that the first connector 400 connects the first case portion 111 and the second case portion 112 via the side plate. In other possible implementations, the fixing plate 300 may also be an end plate or may also be a side plate and an end plate, which is not limited in the embodiments of the present application.

Fig. 11 is a schematic view of a first connector according to an embodiment of the present application. Alternatively, in an embodiment of the present application, the fixing plate 300 is a side plate and an end plate, the battery 10 includes a plurality of battery modules, the first connecting portion 401 and the second connecting portion 402 of the first connecting member 400 are both cross-shaped, the first connecting member 400 is connected with four battery modules at four corners, respectively, wherein two sections 402 'of the second connecting portion 402 are connected with the end plates of two battery modules, respectively, and the other two sections 402' of the second connecting portion 402 are connected with the side plates of the other two battery modules, respectively. With the above arrangement, the four adjacent battery modules, the first casing portion 111, and the second casing portion 112 can be connected together to form a whole, i.e., the battery 10, thereby further increasing the overall structural strength of the battery 10.

In some embodiments, the battery 10 further includes a bus member 12, the bus member 12 for electrically connecting the battery cells 20. Portions of the first connector 400 are disposed between adjacent bus members 12.

The distance between the adjacent confluence parts 12 is short, so that electric arcs are easy to generate to cause short circuit of batteries under the conditions of high voltage and the like, and the adjacent confluence parts 12 can be isolated by arranging the first connecting piece 400 between the adjacent confluence parts 12, wherein the first connecting piece 400 is an insulating connecting piece, so that the risk of short circuit is reduced.

Alternatively, in one embodiment of the present application, the first connecting member 400 is disposed between two adjacent rows of the battery cells 20 in one battery module 50, in which case the first connecting member 400 is disposed to improve both the overall structural strength of the battery 10 and the safety of the battery 10 by isolating the adjacent bus bar members 12.

Alternatively, in one embodiment of the present application, the second connecting member is disposed between the adjacent battery modules 50, and the first connecting member 400 is disposed between the adjacent bus members 12, in which case, it is possible to isolate both the collision friction between the adjacent two battery modules 20 and the adjacent bus members 12, thereby further improving the overall structural strength of the battery 10 while ensuring the safety of the battery 10.

It should be understood that relevant portions in the embodiments of the present application may be mutually referred, and are not described again for brevity.

An embodiment of the present application further provides a power consumption device, which may include the battery 10 in the foregoing embodiment. Optionally, the electric device may be a vehicle 1, a ship, a spacecraft, or the like, but the embodiment of the present application is not limited thereto.

The battery 10 and the electric device according to the embodiment of the present application are described above, and the method and the device for manufacturing the battery according to the embodiment of the present application will be described below, wherein the parts not described in detail can be referred to the foregoing embodiments.

Fig. 12 shows a schematic flow diagram of a method 3000 of making a battery according to one embodiment of the present application. As shown in fig. 12, the method 3000 may include:

310, providing a battery cell 20;

320, providing a case body 11, wherein the case body 11 comprises a first case body part 111 and a second case body part 112, and the first case body part 111 covers the second case body part 112 to form a containing cavity for containing the battery unit 20;

330 providing a fixation plate 300;

340, providing a first connector 400;

350, the battery cell 20 is accommodated in the accommodating cavity, the battery cell 20 is fixed to the second case portion 112 by the fixing plate 300, and the first case portion 111 and the fixing plate 300 are connected by the first connector 400.

Fig. 13 shows a schematic block diagram of an apparatus 600 for preparing a battery according to an embodiment of the present application. As shown in fig. 13, the apparatus 600 for preparing a battery may include: a provisioning module 610 and a mounting module 620.

A module 610 is provided for providing the battery cell 20, the case 11, the fixing plate 300 and the first connector 400. The case 11 includes a first case portion 111 and a second case portion 112, and the first case portion 111 covers the second case portion 112 to form a receiving cavity for receiving the battery cell 20.

The mounting module 620 is configured to accommodate the battery cell 20 in the accommodating cavity, fix the battery cell 20 to the second case portion 112 through the fixing plate 300, and connect the first case portion 111 and the fixing plate 300 through the first connector 400.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A battery (10), comprising:

a battery cell (20);

the battery box comprises a box body (11), wherein the box body (11) comprises a first box body part (111) and a second box body part (112), the first box body part (111) covers the second box body part (112) to form a containing cavity for containing the battery monomer (20), and the battery monomer (20) is contained in the containing cavity;

a fixing plate (300) for fixing the battery cell (20) to the second case portion (112);

a first connector (400) for connecting the first tank part (111) and the fixing plate (300).

2. The battery (10) according to claim 1, wherein the first connecting member (400) comprises a first connecting portion (401) and a second connecting portion (402) connected to each other, the first connecting portion (401) being adapted to be connected to a first wall of the first case portion (111) for covering the battery cell (20) and the fixing plate (300), the second connecting portion (402) being adapted to be connected to the fixing plate (300).

3. The battery (10) according to claim 2, wherein a first face (401 a) of the first connection portion (401) facing the first wall is provided with a recess (4011), the recess (4011) being for storing an adhesive for adhering the first wall and the first face (401 a).

4. The battery (10) according to claim 2 or 3, wherein a second face (401 b) of the first connection portion (401) remote from the first wall abuts the battery cell (20).

5. The battery (10) according to any one of claims 2 to 4, wherein the second connection portion (402) is provided with a card slot (411), and the second connection portion (402) is inserted into the fixing plate (300) through the card slot (411) to be connected with the fixing plate (300).

6. The battery (10) according to claim 5, wherein said slot (411) is further used for filling an adhesive to adhesively connect said slot (411) with said fixing plate (300).

7. The battery (10) according to any one of claims 2 to 6, wherein a side of the second connecting portion (402) facing the battery cell (20) is provided with a glue storage groove (421), and the glue storage groove (421) is used for storing an adhesive, so that when the second connecting portion (402) is connected to the fixing plate (300), the adhesive in the glue storage groove (421) overflows to bond the second connecting portion (402) and the battery cell (20).

8. The battery (10) according to claim 7, wherein an end portion of the second connection portion (402) away from the first connection portion (401) is provided with a cantilever (4021), and the cantilever (4021) is obliquely provided from the end portion toward the first connection portion (401) to form the glue storage groove (421) opening toward the first connection portion (401).

9. The battery (10) of claim 8, wherein the cantilever (4021) is provided with a through hole, so that when the second connecting part (402) is connected to the fixing plate (300), the adhesive in the adhesive storage tank (421) overflows from the through hole to bond the second connecting part (402) and the battery cell (20).

10. The battery (10) according to any one of claims 1 to 9, wherein the battery (10) comprises a battery module (50), the battery module (50) comprising:

n columns of the battery cells (20), wherein each column of the battery cells (20) in the N columns of the battery cells (20) comprises a plurality of the battery cells (20) arranged along a first direction, the N columns of the battery cells (20) are arranged along a second direction, N is an integer greater than 1, and the first direction is perpendicular to the second direction;

the fixing plates (300) extend along the first direction and are arranged between two adjacent rows of the battery cells (20), and the fixing plates (300) are fixedly connected with each battery cell (20) in the two adjacent rows of the battery cells (20);

wherein, the end of the fixing plate (300) in the first direction is provided with a fixing structure (302), and the fixing plate (300) is fixed on the second box body part (112) through the fixing structure (302).

11. The battery (10) according to claim 10, wherein the battery (10) comprises a plurality of the battery modules (50), the plurality of the battery modules (50) being arranged in the second direction with a gap between adjacent battery modules (50).

12. The battery (10) of claim 11, wherein the battery (10) further comprises a second connector, portions of which are disposed within the gap for connecting the first case portion (111) and the battery cells (20) on either side of the gap.

13. The battery (10) according to any one of claims 10 to 12, wherein the fixing structure (302) comprises an end plate (304), the end plate (304) being fixedly connected with the end of the fixing plate (300) and with the battery cell (20) located at the end of the fixing plate (300).

14. The battery (10) according to any one of claims 1 to 13, wherein the battery (10) further comprises:

a bus member (12) for electrically connecting the battery cells (20);

wherein a portion of the first connector (400) is disposed between adjacent bus members (12).

15. An electrical consumer comprising a battery (10) as claimed in any one of claims 1 to 14, the battery (10) being for powering the electrical consumer.

16. A method of making a battery, comprising:

providing (310) a battery cell (20);

providing (320) a box body (11), wherein the box body (11) comprises a first box body part (111) and a second box body part (112), and the first box body part (111) covers the second box body part (112) to form a containing cavity for containing the battery unit (20);

providing (330) a fixation plate (300);

providing (340) a first connector (400);

accommodating (350) the battery cell (20) in the accommodating cavity, fixing the battery cell (20) to the second box body part (112) through the fixing plate (300), and connecting the first box body part (111) and the fixing plate (300) through the first connecting piece (400).

17. An apparatus for manufacturing a battery, comprising:

the battery pack fixing device comprises a providing module (610) used for providing a battery cell (20), a box body (11), a fixing plate (300) and a first connecting piece (400), wherein the box body (11) comprises a first box body part (111) and a second box body part (112), and the first box body part (111) covers the second box body part (112) to form a containing cavity for containing the battery cell (20);

the mounting module (620) is used for accommodating the battery unit (20) in the accommodating cavity, fixing the battery unit (20) to the second box body part (112) through the fixing plate (300), and connecting the first box body part (111) and the fixing plate (300) through the first connecting piece (400).