Battery, power consumption apparatus, method for manufacturing battery, and apparatus

Abstract

To provide a battery that has increased the utilization rate of a space inside the battery to improve the structural strength and energy density of the battery.SOLUTION: A battery (10), a power consumption apparatus, a method for manufacturing the battery, and an apparatus are provided. The battery comprises a plurality of battery cells (20) arranged along a first direction, a separator (101), and a hooking wall (204). The battery cells each include a first wall (201) and a second wall (202). The first wall of the battery cell is a wall having the largest surface area, and the second wall is connected with the first wall. The separator extends along the first direction, and is connected with the first wall of each battery cell of the plurality of battery cells. The hooking wall is connected with the second wall of each battery cell of the plurality of battery cells, and when the battery cells are provided in the power consumption apparatus, the battery cells are located below the hooking wall, and the hooking wall is used to hook the battery cells thereon. According to the technology plan in an example of the present application, the performance of the battery can be improved.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] This application relates to the field of battery technology, and in particular to batteries, power consuming devices, battery manufacturing methods and devices. [Background technology]

[0002] As environmental pollution becomes more serious, the new energy industry is attracting more and more attention, and battery technology is a key factor in the development of the new energy industry. Summary of the Invention [Problem to be solved by the invention]

[0003] The utilization rate of the space inside the battery affects the structural strength and energy density of the battery, and further affects the performance of the battery. How to improve the performance of the battery is a technical problem that needs to be urgently solved in battery technology. [Means for solving the problem]

[0004] The present application provides a battery, a power consuming device, a method and an apparatus for manufacturing a battery, which can improve the structural strength and energy density of the battery, thereby improving the performance of the battery.

[0005] According to a first aspect, a battery is provided, comprising a plurality of battery cells arranged along a first direction, a separator, and a hanging wall, the battery cells comprising a first wall and a second wall, the first wall being the wall with the largest surface area of ​​the battery cells, the second wall being connected to the first wall, the separator extending along the first direction and connected to the first wall of each battery cell among the plurality of battery cells, the hanging wall being connected to the second wall of each battery cell among the plurality of battery cells, and when the battery cells are installed in a power consumption device, the battery cells are positioned below the hanging wall, and the hanging wall is used to hang the battery cells.

[0006] In the embodiment of the present application, the battery includes a separator connected to a first wall of each battery cell having the largest surface area among a row of a plurality of battery cells arranged along a first direction, and the separator connects the plurality of battery cells together, in which case there is no need to provide a structure such as a side plate or a beam inside the battery, and the battery can maximize the utilization of the space inside the battery and improve the structural strength and energy density of the battery; the battery further includes a hanging wall connected to a second wall of each battery cell among a plurality of battery cells arranged along a first direction, and the second wall is connected to the first wall, and when the battery cell is installed in a power consumption device, the battery cell is located below the hanging wall and hung on the hanging wall. In this way, the second wall of the battery cell is directly connected to the hanging wall, and no space is required between the hanging wall and the battery cell, further increasing the utilization of the space inside the battery and improving the energy density of the battery; and the battery cell is hung on the hanging wall, which can improve the structural strength of the battery; therefore, the technical solution of the embodiment of the present application can improve the performance of the battery.

[0007] In one possible embodiment, an electrode terminal is provided on a third wall of the battery cell, and the third wall and the second wall are arranged opposite each other with a gap along a second direction, and the second direction is perpendicular to the second wall, or the third wall is connected to the second wall, and the first direction is perpendicular to the third wall.

[0008] The electrode terminal is provided on the third wall, the third wall and the second wall are provided opposite to each other in a second direction, and the second direction is perpendicular to the second wall, or the third wall is connected to the second wall, and the first direction is perpendicular to the third wall, that is, the electrode terminal is provided on a wall other than the hanging wall, and thus there is no need to leave a space for the electrode terminal between the battery cell and the hanging wall in advance, which can maximize the utilization rate of the space inside the battery and improve the energy density of the battery.

[0009] In one possible embodiment, the separator is a metal plate, thus ensuring the strength of the separator.

[0010] In one possible embodiment, an insulating layer is provided on the surface of the separator. By providing an insulating layer on the surface of the separator, the surface connected to the first wall of the separator can be made an insulating surface.

[0011] In one possible embodiment, the separator is a non-metallic material plate.

[0012] In one possible embodiment, a first cavity is provided in the separator. The first cavity can ensure the strength of the separator, reduce the weight of the separator, and the first cavity can allow the separator to have a large compression space in the direction perpendicular to the first wall, thereby providing a large expansion space for the battery cell.

[0013] In one possible embodiment, the first cavity is used to contain a fluid to adjust the temperature of the battery cell, and in this way, the temperature of the battery cell can be effectively managed.

[0014] In one possible embodiment, the size T1 of the separator in the third direction is 0.1 - 100 mm, and the third direction is perpendicular to the first wall. If the size T1 of the separator in the third direction is too small, the rigidity of the separator is low and the structural strength of the battery cannot be effectively improved. If the size T1 of the separator in the third direction is too large, it will occupy too much space inside the battery, which is disadvantageous for improving the energy density of the battery. Therefore, the size T1 of the separator in the third direction is set to 0.1 - 100 mm, and in this way, the energy density of the battery can be ensured and the structural strength of the battery can be improved.

[0015] In one possible embodiment, the size T1 of the separator in the third direction and the size T2 of the battery cell in the third direction satisfy 0 < T1 / T2 ≤ 7. In this way, the energy density of the battery can be ensured and the safety performance of the battery can be ensured.

[0016] In one possible embodiment, 0 < T1 / T2 ≤ 1, thereby further improving the energy density of the battery and ensuring the safety performance of the battery.

[0017] In one possible embodiment, the weight M1 of the separator and the weight M2 of the battery cell satisfy 0 < M1 / M2 ≤ 20. In this way, the weight energy density of the battery can be ensured and the safety performance of the battery can be ensured.

[0018] In one possible embodiment, 0.1 ≤ M1 / M2 ≤ 1, thereby further improving the energy density of the battery and ensuring the safety performance of the battery.

[0019] In one possible embodiment, the area S1 of the surface of the separator connected to the first wall of the plurality of battery cells and the area S2 of the first wall satisfy 0.2 ≤ S1 / S2 ≤ 30. In this way, the energy density of the battery can be ensured and the safety performance of the battery can be ensured.

[0020] In one possible embodiment, 2 ≤ S1 / S2 ≤ 10, thereby further improving the energy density of the battery and ensuring the safety performance of the battery.

[0021] In one possible embodiment, the specific heat capacity Q of the separator and the weight M1 of the separator satisfy 0.02 KJ / (kg 2 / °C) ≤ Q / M1 ≤ 100 KJ / (kg 2 / °C). When Q / M1 < 0.02 KJ / (kg 2 / °C), the separator absorbs a lot of energy, the temperature of the battery cell becomes too low, and lithium precipitation may occur. When Q / M1 > 100 KJ / (kg 2 / °C), the thermal conductivity of the separator is low and it cannot quickly take away heat. When 0.02 KJ / (kg 2 / °C) ≤ Q / M1 ≤ 100 KJ / (kg 2 / °C), the safety performance of the battery can be ensured.

[0022] In one possible embodiment, 0.3 KJ / (kg 2 / ℃)≦Q / M1≦20KJ / (kg 2 / °C), thereby further improving the safety performance of the battery.

[0023] In one possible embodiment, a second cavity is provided inside the hanging wall, which can ensure the strength of the hanging wall and reduce the weight of the hanging wall, and the second cavity can allow the hanging wall to have a large compression space in a direction perpendicular to the second wall, thereby providing a large expansion space for the battery cell.

[0024] In one possible embodiment, the second cavity is used to accommodate a fluid to regulate the temperature of the battery cell, and thus the temperature of the battery cell can be effectively controlled.

[0025] In one possible embodiment, the battery further includes a reinforcing rib, the reinforcing rib is provided on a surface of the hanging wall that is away from the battery cell along a second direction, the second direction being perpendicular to the second wall. The reinforcing rib can increase the strength of the hanging wall.

[0026] In one possible embodiment, the reinforcing rib and the hanging wall are an integrally molded structure, which is easy to process and assemble.

[0027] In one possible embodiment, the battery includes a plurality of rows of the battery cells and a plurality of the separators arranged along the first direction, and the rows of the battery cells and the separators are alternately arranged in a third direction, and the third direction is perpendicular to the first wall. In this way, the rows of the battery cells and the separators are connected to each other to form a single unit and are housed in a box, which can ensure the structural strength of the entire battery and thereby improve the performance of the battery.

[0028] In one possible embodiment, the battery comprises a plurality of battery modules, the battery modules comprising at least one row of a plurality of the battery cells and at least one of the separators arranged along the first direction, and the at least one row of the battery cells and the at least one of the separators are alternately arranged in a third direction, the third direction being perpendicular to the first wall.

[0029] In one possible embodiment, the battery module includes N rows of the battery cells and N-1 separators, and the separator is provided between two adjacent rows of the battery cells, where N is an integer greater than 1. In this way, even if a small number of separators are provided in the battery, it is possible to ensure that each battery cell can be connected to a separator.

[0030] In one possible embodiment, the battery modules are arranged along the third direction, and there are gaps between adjacent battery modules, which can provide expansion space for the battery cells.

[0031] In one possible embodiment, a fixing structure is provided at the end of the separator in the first direction, and the separator is fixed to the hanging wall via the fixing structure, thus improving the structural strength of the battery.

[0032] In one possible embodiment, the separator is adhered to the first wall.

[0033] In one possible embodiment, the hanging wall is adhered to the second wall.

[0034] According to a second aspect, there is provided a power consumer device comprising a battery according to the first aspect or any possible embodiment thereof, the battery being adapted to provide electrical energy.

[0035] According to a third aspect, a method for manufacturing a battery is provided, the method including the steps of: providing a plurality of battery cells arranged along a first direction, the battery cells having a first wall and a second wall, the first wall being a wall with a maximum surface area of ​​the battery cells, and the second wall being connected to the first wall; providing a separator extending along the first direction and connected to the first wall of each battery cell among the plurality of battery cells; and providing a hanging wall, the hanging wall being connected to the second wall of each battery cell among the plurality of battery cells, wherein when the battery cells are installed in a power consumption device, the battery cells are located below the hanging wall, and the hanging wall is used to hang the battery cells.

[0036] According to a fourth aspect, there is provided a battery manufacturing device comprising a module for carrying out the method according to the third aspect.

[0037] In the embodiment of the present application, the battery includes a separator connected to a first wall of each battery cell having the largest surface area among a row of a plurality of battery cells arranged along a first direction, and the separator connects the plurality of battery cells together, in which case there is no need to provide a structure such as a side plate or a beam inside the battery, and the battery can maximize the utilization of the space inside the battery and improve the structural strength and energy density of the battery; the battery further includes a hanging wall connected to a second wall of each battery cell among a plurality of battery cells arranged along a first direction, and the second wall is connected to the first wall, and when the battery cell is installed in a power consumption device, the battery cell is located below the hanging wall and hung on the hanging wall. In this way, the second wall of the battery cell is directly connected to the hanging wall, and no space is required between the hanging wall and the battery cell, further increasing the utilization of the space inside the battery and improving the energy density of the battery; and the battery cell is hung on the hanging wall, which can improve the structural strength of the battery; therefore, the technical solution of the embodiment of the present application can improve the performance of the battery. [Brief description of the drawings]

[0038] In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings necessary for the embodiments of the present application are briefly described below. It is obvious that the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on the drawings without creative labor.

[0039] [Figure 1] 1 is a structural schematic diagram of a vehicle disclosed in an embodiment of the present application. [Diagram 2] FIG. 1 is an exploded structural schematic diagram of a battery disclosed in one embodiment of the present application. [Diagram 3] FIG. 2 is a structural schematic diagram of a battery cell disclosed in one embodiment of the present application. [Figure 4] FIG. 1 is a structural schematic diagram of a battery disclosed in one embodiment of the present application. [Diagram 5] FIG. 1 is a partial schematic diagram of a battery disclosed in one embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram of a separator and an insulating layer disclosed in one embodiment of the present application. [Figure 7] FIG. 2 is a schematic diagram of a separator with a cavity as disclosed in one embodiment of the present application. [Figure 8] 1 is a schematic diagram of a hanging wall disclosed in one embodiment of the present application. [Figure 9] FIG. 2 is a schematic diagram of a reinforcing rib disclosed in one embodiment of the present application. [Figure 10] FIG. 1 is a structural schematic diagram of a battery disclosed in one embodiment of the present application. [Figure 11] FIG. 2 is a schematic diagram of a method for manufacturing a battery according to an embodiment of the present application. [Figure 12] FIG. 2 is a schematic diagram of a battery manufacturing device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0040] In the drawings, the figures are not drawn to scale.

[0041] Hereinafter, the embodiments of the present application will be described in more detail with reference to the drawings and examples. The detailed description of the following examples and the drawings are used to exemplarily explain the principles of the present application, and do not limit the scope of the present application, i.e., the present application is not limited to the described examples.

[0042] In the description of this application, it is necessary to explain that, unless otherwise specified, all technical and scientific terms used have the same meaning as those normally understood by those skilled in the art, and the terms used are merely for describing specific embodiments and are not intended to limit this application, and the terms "including", "having" and any variations thereof in the specification, claims and the brief description of the drawings of this application are intended to cover non-exclusive inclusion. "Plural" means two or more, and the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", and "outer" is merely for ease of explanation and simplification of the description of this application, and does not indicate or imply that the devices or elements shown necessarily have a specific orientation and are constructed and operated in a specific orientation, and therefore should be understood not to limit this application. In addition, terms such as "first", "second", and "third" are merely for explanation, and do not indicate or imply relative importance. "Vertical" is not strictly vertical, but is within a margin of error. "Parallel" is not strictly parallel, but is within a margin of error.

[0043] An "embodiment" referred to in this application means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The phrases appearing in various places in the specification do not necessarily refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments of other embodiments. Those skilled in the art can explicitly or implicitly understand that the embodiment described in this application can be combined with other embodiments.

[0044] Any directional terms appearing in the following description are the directions shown in the drawings, and do not limit the specific structure of the present application. In the description of the present application, it is necessary to explain that unless otherwise clearly specified and limited, the terms "attached", "connected" and "connected" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrally connected. They may be directly connected, indirectly connected via an intermediate medium, or internally communicated between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific situation.

[0045] The term "and / or" in this application is merely for the purpose of explaining the relationship between related objects, and indicates that there are three relationships, for example, A and / or B can indicate three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after it are in an "or" relationship.

[0046] In the present application, the battery cell includes a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, or a magnesium ion battery, etc., and the embodiments of the present application are not limited thereto. The battery cell may be cylindrical, flat, rectangular, or other shapes, etc., and the embodiments of the present application are not limited thereto. Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, prismatic battery cells, and soft-pack battery cells, and the embodiments of the present application are not limited thereto.

[0047] The battery referred to in the embodiments of the present application is a single physical module with one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application includes a battery pack and the like. The battery generally includes a box for packaging one or more battery cells. The box can prevent liquids and other foreign objects from adversely affecting the charging or discharging of the battery cells.

[0048] The battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive plate, a negative plate, and a diaphragm. The battery cell mainly relies on the movement of metal ions between the positive plate and the negative plate to operate. The positive plate includes a positive current collector and a positive active material layer, and the positive active material layer is applied to the surface of the positive current collector, and the current collector without the positive active material layer protrudes beyond the current collector with the positive active material layer applied, and the current collector without the positive active material layer is used as a positive tab. Taking a lithium-ion battery as an example, the material of the positive current collector may be aluminum, and the positive active material may be lithium cobalt oxide, lithium iron phosphate, ternary lithium, lithium manganate, etc. The negative plate includes a negative current collector and a negative active material layer, and the negative active material layer is applied to the surface of the negative current collector, and the current collector without the negative active material layer protrudes beyond the current collector with the negative active material layer applied, and the current collector without the negative active material layer is used as a negative tab. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon, etc. In order to ensure that high current flows without melting, the positive electrode tabs are multiple and stacked together, and the negative electrode tabs are multiple and stacked together. The material of the diaphragm may be polypropylene (PP) or polyethylene (PE), etc. In addition, the electrode assembly may have a wound structure or a stacked structure, and the embodiments of the present application are not limited thereto.

[0049] In order to meet various power demands, the battery may include multiple battery cells, and the multiple battery cells may be connected in series, parallel, or series-parallel, where the series-parallel connection is a combination of the series and parallel connections. Optionally, the multiple battery cells are first connected in series, parallel, or series-parallel to form a battery module, and then the multiple battery modules are connected in series, parallel, or series-parallel to form a battery. That is, the multiple battery cells may directly form a battery, or may first form a battery module, and then the battery module may form a battery. The battery is further provided in a power consumption device to provide electrical energy to the power consumption device.

[0050] The development of battery technology requires simultaneous consideration of various design factors, such as energy density, cycle life, discharge capacity, charge / discharge rate, and safety. When the space inside the battery is constant, increasing the utilization rate of the space inside the battery is an effective means of improving the energy density of the battery. However, while increasing the utilization rate of the space inside the battery, there is a risk of reducing the structural strength of the battery. For example, a beam for hanging a battery module is usually provided inside the battery box, and a side plate and an end plate are provided on the battery module of the battery. While the beam, side plate, and end plate realize the fixing of the battery, they occupy the space inside the battery. However, without the beam, side plate, and end plate, the structural strength of the battery will be insufficient, which will adversely affect the performance of the battery.

[0051] In view of this, the embodiments of the present application provide a technical solution, in which a separator is provided in a battery, which is connected to a first wall of each battery cell having the largest surface area among a plurality of battery cells arranged in a row along a first direction, and the separator connects the plurality of battery cells together, in which case, it is not necessary to provide a structure such as a side plate or a beam in the battery, and the utilization rate of the space inside the battery can be maximized, and the structural strength and energy density of the battery can be improved, and the battery further includes a hanging wall connected to a second wall of each battery cell among a plurality of battery cells arranged along a first direction, the second wall being connected to the first wall, and when the battery cell is installed in a power consumption device, the battery cell is located below the hanging wall and hung on the hanging wall. In this way, the second wall of the battery cell is directly connected to the hanging wall, and no space is required between the hanging wall and the battery cell, which further increases the utilization rate of the space inside the battery, and improves the energy density of the battery, and the structural strength of the battery can be improved by hanging the battery cell on the hanging wall, so that the technical solution of the embodiments of the present application can improve the performance of the battery.

[0052] The technical solutions described in the embodiments of the present application can be applied to various devices that use batteries, such as mobile phones, portable devices, laptops, electric bicycles, electric toys, power tools, electric vehicles, ships and spacecraft, etc., such as spacecraft including airplanes, rockets, space shuttles and spaceships, etc.

[0053] As can be understood, the technical solutions described in the embodiments of the present application are not only applicable to the above-described devices, but also to all devices that use batteries, and for the sake of brevity, all of the following embodiments are described using electric vehicles as an example.

[0054] For example, as shown in FIG. 1, a structural schematic diagram of a vehicle 1 according to an embodiment of the present application, the vehicle 1 may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range extender electric vehicle, etc. A motor 40, a controller 30, and a battery 10 may be provided inside the vehicle 1, and the controller 30 is used to control the battery 10 to supply power to the motor 40. For example, the battery 10 may be provided at the bottom, front, or tail of the vehicle 1. The battery 10 is used to power the vehicle 1, for example, the battery 10 is used as an operating power source for the vehicle 1, and is used for the circuit system of the vehicle 1, for example, for the operating power needs during starting, navigation, and driving of the vehicle 1. In another embodiment of the present application, the battery 10 is not only used as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, and can provide driving power to the vehicle 1 by replacing or partially replacing gasoline or natural gas.

[0055] In order to meet various power usage demands, the battery 10 may include multiple battery cells. For example, as shown in FIG. 2, which is a structural schematic diagram of a battery 10 according to an embodiment of the present application, the battery 10 includes multiple battery cells 20. The battery 10 further includes a box 11, the inside of which is a hollow structure, and the multiple battery cells 20 are accommodated in the box 11. For example, the multiple battery cells 20 are combined by being connected in parallel, in series, or in series-parallel to each other, and then placed in the box 11.

[0056] Optionally, the battery 10 may further include other structures, and detailed description thereof will be omitted here. For example, the battery 10 may further include a bus member, which is used to realize electrical connection between the plurality of battery cells 20, such as parallel connection, series connection, or series-parallel connection. Specifically, the bus member may be connected to the electrode terminals of the battery cells 20 to realize electrical connection between the battery cells 20. Furthermore, the bus member may be fixed to the electrode terminals of the battery cells 20 by welding. The electrical energy of the plurality of battery cells 20 may further be conducted through the box via a conductive mechanism. Optionally, the conductive mechanism may belong to the bus member.

[0057] According to different power demands, the number of battery cells 20 may be set to any value. Multiple battery cells 20 can be connected in a series, parallel, or series-parallel manner to achieve large capacity or power. Since each battery 10 may contain a large number of battery cells 20, the battery cells 20 can be installed in groups for ease of installation, and each group of battery cells 20 can constitute a battery module. The number of battery cells 20 included in a battery module is not limited and can be set according to demand. A battery may include multiple battery modules, which can be connected in a series, parallel, or series-parallel manner.

[0058] As shown in FIG. 3, it is a structural schematic diagram of a battery cell 20 according to an embodiment of the present application, in which the battery cell 20 includes one or more electrode assemblies 22, a housing 211, and a cover plate 212. The housing 211 and the cover plate 212 form a casing or battery case 21. The walls of the housing 211 and the cover plate 212 are both called walls of the battery cell 20, and in the case of a rectangular parallelepiped battery cell 20, the walls of the housing 211 include a bottom wall and four side walls. The housing 211 is determined according to the shape after one or more electrode assemblies 22 are combined, for example, the housing 211 may be a hollow rectangular parallelepiped, cube, or cylinder, and one surface of the housing 211 has an opening, so that one or more electrode assemblies 22 can be disposed in the housing 211. For example, when the housing 211 is a hollow rectangular parallelepiped or cube, one plane of the housing 211 is an open plane, i.e., the plane has no wall and communicates with the inside and outside of the housing 211. When the housing 211 is a hollow cylinder, the end surface of the housing 211 is an open surface, i.e., the end surface has no wall, allowing communication between the inside and the outside of the housing 211. The cover plate 212 covers the opening and is connected to the housing 211 to form a sealed cavity for disposing the electrode assembly 22. The housing 211 is filled with an electrolyte, for example, an electrolyte solution.

[0059] The battery cell 20 may further include two electrode terminals 214, which may be provided on the cover plate 212. The cover plate 212 is generally flat, and the two electrode terminals 214 are fixed on the flat surface of the cover plate 212, and the two electrode terminals 214 are a positive terminal 214a and a negative terminal 214b, respectively. Each electrode terminal 214 is provided with a corresponding connecting member 23, or a current collecting member 23, which is located between the cover plate 212 and the electrode assembly 22 and is used to realize the electrical connection between the electrode assembly 22 and the electrode terminals 214.

[0060] As shown in FIG. 3, each electrode 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. For example, when the first tab 221a is a positive electrode tab, the second tab 222a is a negative electrode tab. The first tab 221a of one or more electrode assemblies 22 is connected to one electrode terminal via one connection member 23, and the second tab 222a of one or more electrode assemblies 22 is connected to another electrode terminal via another connection member 23. For example, the positive electrode terminal 214a is connected to the positive electrode tab via one connection member 23, and the negative electrode terminal 214b is connected to the negative electrode tab via another connection member 23.

[0061] According to actual usage demands, the battery cell 20 may be provided with one or more electrode assemblies 22. As shown in FIG. 3, the battery cell 20 is provided with four independent electrode assemblies 22.

[0062] The battery cell 20 may further be provided with a pressure release mechanism 213. The pressure release mechanism 213 is used to operate and release the internal pressure or temperature when the internal pressure or temperature of the battery cell 20 reaches a threshold value.

[0063] The pressure release mechanism 213 may be a variety of possible pressure release structures, and the embodiments of the present application are not limited thereto. For example, the pressure release mechanism 213 may be a temperature sensitive pressure release mechanism that is configured to melt when the internal temperature of the battery cell 20 in which the pressure release mechanism 213 is provided reaches a threshold, and / or the pressure release mechanism 213 may be a pressure sensitive pressure release mechanism that is configured to burst when the internal air pressure of the battery cell 20 in which the pressure release mechanism 213 is provided reaches a threshold.

[0064] 4 is a structural schematic diagram of a battery 10 according to an embodiment of the present application. As shown in FIG. 4, the battery 10 includes a plurality of battery cells 20 arranged along a first direction x, a separator 101, and a hanging wall 204.

[0065] The first direction x is the arrangement direction of one row of battery cells 20 in the battery 10. In other words, one row of battery cells 20 in the battery 10 is arranged along the x direction.

[0066] The battery cell 20 includes a first wall 201 and a second wall 202, where the first wall 201 is the wall of the battery cell 20 with the largest surface area, and the second wall 202 is connected to the first wall 201. The separator 101 extends along a first direction x and is connected to the first wall 201 of each battery cell 20 among the plurality of battery cells 20.

[0067] The battery cell 20 may have multiple walls, and the first wall 201 of the battery cell 20 having the largest surface area is connected to the separator 101. That is, the first wall 201 of the battery cell 20 faces the separator 101, i.e., the first wall 201 of the battery cell 20 is parallel to the first direction x.

[0068] The separator 101 is connected to the first wall 201, which is the wall with the largest surface area of ​​the battery cell 20. In this way, the contact area between the separator 101 and the battery cell 20 is increased, and the connection strength between the separator 101 and the battery cell 20 can be ensured.

[0069] The hanging wall 204 is connected to the second wall 202 of each battery cell 20 among the multiple battery cells 20, and when the battery cells 20 are installed in a power consumption device, the battery cells 20 are located below the hanging wall 204, and the hanging wall 204 is used to hang the battery cells 20.

[0070] The hanging wall 204 may be a top cover of the box of the battery 10, or may be a part of a power consuming device, for example, the chassis of the vehicle 1. When the hanging wall 204 is the chassis of the vehicle 1, the second wall 202 of the battery cell 20 is connected to the hanging wall 204, i.e., the second wall 202 of the battery cell 20 is connected to the surface of the chassis of the vehicle 1. The battery cell 20 is directly connected to the surface of the chassis of the vehicle, thus eliminating the need for a top cover of the box of the battery 10, saving the space occupied by the top cover of the box of the battery 10, and improving the space utilization rate of the battery 10, thereby improving the energy density of the battery 10.

[0071] In an embodiment of the present application, the battery 10 is provided with a separator 101 connected to a first wall 201 having the largest surface area of ​​each of the battery cells 20 among a row of the battery cells 20 aligned along a first direction x, and the separator 101 connects the battery cells 20 together. In this case, it is not necessary to provide a structure such as a side plate or beam inside the battery 10, and the utilization rate of the space inside the battery 10 can be maximized to improve the structural strength and energy density of the battery 10. The battery 10 is further provided with a hanging wall 204 connected to a second wall 202 of each of the battery cells 20 among the battery cells 20 aligned along the first direction x, and the second wall 202 is connected to the first wall 201. When the battery cells 20 are installed in a power consumption device, the battery cells 20 are located below the hanging wall 204 and hung on the hanging wall 204. In this way, the second wall 202 of the battery cell 20 is directly connected to the hanging wall 204, and no space is required between the hanging wall 204 and the battery cell 20. This further increases the utilization rate of the space inside the battery 10 and improves the energy density of the battery 10. In addition, the battery cell 20 is hung on the hanging wall 204, which improves the structural strength of the battery 10. Therefore, the technical solutions of the embodiments of the present application can improve the performance of the battery 10.

[0072] Optionally, in one embodiment of the present application, as shown in FIG. 5(a), an electrode terminal 214 is provided on the third wall 203 of the battery cell 20, and the third wall 203 and the second wall 202 are arranged opposite each other with a gap therebetween along the second direction z, and the second direction z is perpendicular to the second wall 202.

[0073] Optionally, in another embodiment of the present application, as shown in FIG. 5(b), an electrode terminal 214 is provided on a third wall 203 of the battery cell 20, the third wall 203 is connected to the second wall 202, and the first direction x is perpendicular to the third wall 203.

[0074] The electrode terminal 214 is provided on the third wall 203, and the third wall 203 and the second wall 202 are provided opposite to each other with a gap therebetween along the second direction z, and the second direction z is perpendicular to the second wall 202, or the third wall 203 is connected to the second wall 202, and the first direction x is perpendicular to the third wall 203. That is, the electrode terminal 214 is provided on a wall other than the hanging wall 204, and thus there is no need to leave a space for the electrode terminal 214 between the battery cell 20 and the hanging wall 204 in advance, which can maximize the utilization rate of the space inside the battery 10 and improve the energy density of the battery 10.

[0075] Optionally, in one embodiment of the present application, the separator 101 is a metal material plate. That is, the entire separator 101 is made of a metal material. In this case, an insulating layer is provided on the surface of the separator 101. Optionally, the insulating layer may be an insulating film adhered to the surface of the separator 101 or an insulating paint applied to the surface of the separator 101.

[0076] 6, an insulating layer 102 is provided on the surface of separator 101. By providing it in this manner, since separator 101 is made of a metal material, the strength of separator 101 can be ensured, and insulating layer 102 can make the surface of separator 101 connected to first wall 201 into an insulating surface.

[0077] Optionally, in one embodiment of the present application, separator 101 is a non-metallic material plate, i.e., the entire separator 101 is a non-metallic insulating material.

[0078] Optionally, in one embodiment of the present application, as shown in Fig. 7, a first cavity 1011 is provided in the separator 101. The first cavity 1011 can ensure the strength of the separator 101 and reduce the weight of the separator 101. Moreover, the first cavity 1011 can allow the separator 101 to have a large compression space in the third direction y, thereby providing a large expansion space for the battery cell 20.

[0079] Optionally, in one embodiment of the present application, the first cavity 1011 is used to contain a fluid to regulate the temperature of the battery cell 20 .

[0080] The fluid may be a liquid or a gas, and the adjustment of temperature refers to heating or cooling the battery cells 20. When the temperature of the battery cells 20 is to be lowered, the first cavity 1011 can accommodate a cooling medium to adjust the temperature of the battery cells 20, and the fluid may be called a cooling medium or a cooling fluid, more specifically, a cooling liquid or a cooling gas. The fluid may also be used for heating, and the embodiment of the present application is not limited thereto. Optionally, the fluid may flow circulatoryly, thereby achieving a better temperature adjustment effect. Optionally, the fluid may be water, a mixture of water and ethylene glycol, a refrigerant, air, etc.

[0081] Optionally, in one embodiment of the present application, the size T1 of the separator 101 in the third direction y is 0.1 to 100 mm.

[0082] If the size T1 of the separator 101 in the third direction y is too small, the rigidity of the separator 101 is low, and the structural strength of the battery 10 cannot be effectively improved. If the size T1 of the separator 101 in the third direction y is too large, it will occupy too much space inside the battery 10, which is disadvantageous for improving the energy density of the battery 10. Therefore, the size T1 of the separator 101 in the third direction y is set to 0.1 - 100 mm. In this way, the energy density of the battery 10 can be ensured, and the structural strength of the battery 10 can be improved.

[0083] Optionally, in one embodiment of the present application, the size T1 of the separator 101 in the third direction y and the size T2 of the battery cell 20 in the third direction y satisfy 0 < T1 / T2 ≤ 7.

[0084] If T1 / T2 is too large, the separator 101 will occupy a large amount of space, which will have an adverse effect on the energy density. In addition, the separator 101 conducts heat too quickly to the battery cell 20, which may cause safety problems. For example, if a certain battery cell 20 undergoes thermal runaway, there is a risk of causing thermal runaway of other battery cells 20 connected to the same separator 101. When 0 < T1 / T2 ≤ 7, the energy density of the battery 10 can be ensured, and the safety performance of the battery 10 can be ensured.

[0085] Optionally, in one embodiment of the present application, the size T1 of the separator 101 in the third direction y and the size T2 of the battery cell 20 in the third direction y further satisfy 0 < T1 / T2 ≤ 1, thereby further improving the energy density of the battery 10 and ensuring the safety performance of the battery 10.

[0086] Optionally, in one embodiment of the present application, the weight M1 of the separator 101 and the weight M2 of the battery cell 20 satisfy 0 < M1 / M2 ≤ 20.

[0087] If M1 / M2 is too large, the weight energy density is lost. When 0 < M1 / M2 ≤ 20, the weight energy density of the battery 10 can be ensured and the safety performance of the battery 10 can be ensured.

[0088] Optionally, in one embodiment of the present application, the weight M1 of the separator 101 and the weight M2 of the battery cell 20 further satisfy 0.1 ≤ M1 / M2 ≤ 1, thereby further improving the energy density of the battery 10 and ensuring the safety performance of the battery 10.

[0089] Optionally, in one embodiment of the present application, the area S1 of the surface of the separator 101 connected to the first wall 201 of the plurality of battery cells 20 and the area S2 of the first wall 201 satisfy 0.2 ≤ S1 / S2 ≤ 30.

[0090] S1 is the total area of the surface of the separator 101 on the side connected to the battery cell 20. If S1 / S2 is too large, it will have an adverse effect on the energy density. If S1 / S2 is too small, the heat conduction effect is very low and it will have an adverse effect on the safety performance. When 0.2 ≤ S1 / S2 ≤ 30, the energy density of the battery 10 can be ensured and the safety performance of the battery 10 can be ensured.

[0091] Optionally, in one embodiment of the present application, the area S1 of the surface of the separator 101 connected to the first wall 201 of the plurality of battery cells 20 and the area S2 of the first wall 201 further satisfy 2 ≤ S1 / S2 ≤ 10, thereby further improving the energy density of the battery 10 and ensuring the safety performance of the battery 10.

[0092] Optionally, in one embodiment of the present application, the specific heat capacity Q of the separator 101 and the weight M1 of the separator 101 satisfy 0.02 KJ / (kg 2 / °C) ≤ Q / M1 ≤ 100 KJ / (kg 2 / °C).

[0093] Q / M1 < 0.02 KJ / (kg 2 / ℃), the separator 101 will absorb too much energy, the temperature of the battery cell 20 will be too low, and lithium deposition may occur. 2 / °C), the thermal conductivity of the separator 101 is low and the heat cannot be removed quickly. 2 / ℃)≦Q / M1≦100KJ / (kg 2 / °C), the safety performance of the battery 10 can be ensured.

[0094] Optionally, in one embodiment of the present application, the specific heat capacity Q of the separator 101 and the weight M1 of the separator 101 are further less than 0.3 KJ / (kg 2 / ℃)≦Q / M1≦20KJ / (kg 2 / °C), thereby further improving the safety performance of the battery 10.

[0095] Optionally, in one embodiment of the present application, as shown in Fig. 8, a second cavity 2041 may be provided inside the hanging wall 204. The second cavity 2041 can ensure the strength of the hanging wall 204 and reduce the weight of the hanging wall 204. Moreover, the second cavity 2041 can allow the hanging wall 204 to have a large compression space in the second direction z, thereby providing a large expansion space for the battery cell 20.

[0096] Optionally, in one embodiment of the present application, the second cavity 2041 is used to contain a fluid to regulate the temperature of the battery cell 20 .

[0097] The fluid may be a liquid or a gas, and the adjustment of temperature refers to heating or cooling the battery cells 20. When the temperature of the battery cells 20 is to be lowered, the second cavity 2014 may accommodate a cooling medium to adjust the temperature of the battery cells 20, and the fluid may be called a cooling medium or a cooling fluid, more specifically, a cooling liquid or a cooling gas. The fluid may also be used for heating, and the embodiment of the present application is not limited thereto. Optionally, the fluid may flow circulatoryly, thereby achieving a better temperature adjustment effect. Optionally, the fluid may be water, a mixture of water and ethylene glycol, a refrigerant, air, etc.

[0098] Optionally, in one embodiment of the present application, a reinforcing member 2042 is further provided in the second cavity 2041, thus improving the strength of the hanging wall 204.

[0099] Optionally, in one embodiment of the present application, as shown in FIG. 9, the battery 10 further includes a reinforcing rib 205, which is provided on a surface of the hanging wall 204 that is away from the battery cell 20 in the second direction z.

[0100] Optionally, in one embodiment of the present application, the reinforcing rib 205 and the hanging wall 204 are an integrally molded structure. Such an integrally molded structure is easy to process and assemble, and the structure may be formed by bonding, welding, adhesion, machining, stamping, etc., and the present application is not limited thereto.

[0101] Optionally, in one embodiment of the present application, the battery 10 includes a plurality of rows of battery cells 20 and a plurality of separators 101 arranged along a first direction x, and the rows of battery cells 20 and the separators 101 are alternately arranged in a third direction y, which is perpendicular to the first wall 201. That is, the rows of battery cells 20 and the separators 101 can be arranged according to a separator 101, a row of battery cells 20, a separator 101, ..., or a row of battery cells 20, a separator 101, a row of battery cells 20, .... In this way, the rows of battery cells 20 and the separators 101 are connected to each other to form a single unit and are housed in the box 11, which can provide effective heat conduction to the battery cells 20 of each row and ensure the structural strength of the entire battery 10, thereby improving the performance of the battery 10.

[0102] Fig. 10 shows a structural schematic diagram of a battery 10 according to another embodiment of the present application. As shown in Fig. 10, the battery 10 includes a plurality of battery modules 100, each of which includes at least one row of a plurality of battery cells 20 and at least one separator 101 arranged along a first direction x, and the at least one row of battery cells 20 and the at least one separator 101 are arranged alternately in a third direction y. That is, for each battery module 100, the row of battery cells 20 and the separator 101 are arranged alternately in the third direction y, and the plurality of battery modules 100 are housed in a box 11 to form the battery 10.

[0103] Alternatively, the battery module 100 includes N rows of battery cells 20 and N-1 separators 101, where the separators 101 are provided between two adjacent rows of battery cells 20, and N is an integer greater than 1. That is, the separators 101 are provided inside the battery module 100, and no separators 101 are provided outside the battery module 100. For example, one separator 101 is provided between two rows of battery cells 20, and two separators 101 are provided between three rows of battery cells 20, and so on.

[0104] Optionally, in one embodiment of the present application, as shown in Fig. 10, the battery module 100 includes two rows of battery cells 20, i.e., N is 2. Correspondingly, one separator 101 is provided between the two rows of battery cells 20. No separator 101 is provided between adjacent battery modules 100, and thus, in this embodiment, even if a small number of separators 101 are provided in the battery 10, it can be ensured that each battery cell 20 can be connected to the separator 101.

[0105] Optionally, in one embodiment of the present application, a plurality of battery modules 100 are arranged along the third direction y, and there are gaps between adjacent battery modules 100. There are no separators 101 between adjacent battery modules 100, and there are certain gaps. The gaps between adjacent battery modules 100 can provide expansion space for the battery cells 20.

[0106] Optionally, a fixing structure 103 is provided at an end of the separator 101 in the first direction x, and the separator 101 is fixed to the hanging wall 204 via the fixing structure 103. The fixing structure 103 may be directly connected to the hanging wall 204, or may be connected to a side wall of the box 11 and then connected to the hanging wall 204. In this way, each battery cell 20 is fixed to the hanging wall 204 by the separator 101 and the fixing structure 103, and thus the fixed connection between the battery cells 20 and the hanging wall 204 is strengthened, the entire battery 10 is connected together, and the structural strength of the battery 10 is improved.

[0107] Optionally, the fixing structure 103 may include a fixing plate 104. The fixing plate 104 is fixedly connected to an end of the separator 101 and fixedly connected to the battery cell 20 located at the end of the separator 101. For example, in the case of a rectangular parallelepiped battery cell 20, the fixing plate 104 is vertically connected to the separator 101 and connected to the separator 101 and two adjacent side walls of the rectangular parallelepiped battery cell 20 respectively, thereby further enhancing the fixing effect of the battery cell 20.

[0108] Optionally, the fixing plate 104 may adopt the same material as the separator 101, such as metal, plastic, or composite material. The thickness of the fixing plate 104 may be the same as that of the separator 101. The material or thickness of the fixing plate 104 may be different from that of the separator 101, for example, the fixing plate 104 may be installed with a higher strength or thickness, and the embodiments of the present application are not limited thereto.

[0109] Optionally, the connection method between the separator 101 and the fixing plate 104 may be a connection method such as resistance welding, resistance riveting, SPR riveting, lock bolts or engagement, and the fixing plate 104 may be fixed to the hanging wall 204 by a connection method such as resistance welding, resistance riveting, SPR riveting, lock bolts or engagement, and the embodiments of the present application are not limited thereto.

[0110] Alternatively, the fixing plate 104 and the battery cell 20 may be fixedly connected to each other by an adhesive method, for example, by adhesive bonding with a structural adhesive, but the embodiment of the present application is not limited thereto.

[0111] Optionally, the fixing plate 104 includes a first connecting portion 105 extending in a first direction away from the battery cell 20 , and the first connecting portion 105 is used to connect the hanging wall 204 .

[0112] The first connection portion 105 may be parallel to the hanging wall 204, and the area of ​​the first connection portion 105 may be set according to the fixing method of the side wall of the connected box 11 so as to meet the required fixing effect.

[0113] Optionally, the first connection portion 105 is formed by bending the fixing plate 104. For example, the first connection portion 105 is formed by bending an edge of the fixing plate 104 close to the hanging wall 204 in a direction away from the battery cell 20. For example, the upper edge of the fixing plate 104 can be bent outward to form the first connection portion 105. In this way, the first connection portion 105 and the main body of the fixing plate 104 have an integrally formed structure, which can improve the connection performance.

[0114] Optionally, in one embodiment of the present application, the fixing plate 104 further includes a second connection portion 106 extending in a direction away from the battery cell 20 along the first direction, and the second connection portion 106 is used to connect the fixing plate 104 and the separator 101. For example, at the connection position between the fixing plate 104 and the separator 101, the second connection portion 106 is formed extending in a direction away from the battery cell 20, i.e., outward, and the fixing plate 104 is fixedly connected to the separator 101 via the second connection portion 106.

[0115] Optionally, in addition to connecting the separators 101, the second connection parts 106 can also simultaneously realize a connection between the fixing plates 104. For example, one fixing plate 104 is provided for each row of battery cells 20, and the separators 101 and the two fixing plates 104 corresponding to the two rows of battery cells 20 are fixed together by the second connection parts 106.

[0116] The second connection portion 106 may be parallel to the separator 101. The area of ​​the second connection portion 106 can be set according to the fixing method so as to achieve a desired fixing effect.

[0117] Optionally, in one embodiment of the present application, the separator 101 is adhered to the first wall 201. That is, the separator 101 and the battery cell 20 may be fixedly connected to each other by an adhesive method, for example, by adhesive bonding with a structural adhesive, but the embodiment of the present application is not limited thereto.

[0118] Optionally, in one embodiment of the present application, the hanging wall 204 is adhered to the second wall 202. That is, the hanging wall 204 and the battery cell 20 may be fixedly connected to each other by an adhesive method, for example, by adhesive bonding with a structural adhesive, and the embodiment of the present application is not limited thereto.

[0119] As can be understood, relevant parts in each embodiment of the present application can be referred to each other, and detailed descriptions will be omitted for brevity.

[0120] An embodiment of the present application further provides a power consumption device, which may include the battery 10 in the above embodiment. Optionally, the power consumption device may be a vehicle 1, a ship, a spacecraft, etc., and the embodiment of the present application is not limited thereto.

[0121] The battery 10 and the power consuming device of the embodiment of the present application have been described above. The manufacturing method and device of the battery 10 of the embodiment of the present application will be described below. For the parts not described in detail here, please refer to the above embodiments.

[0122] 11 shows an exemplary flowchart of a method 300 for manufacturing the battery 10 according to an embodiment of the present application. As shown in FIG.

[0123] In step 310, a plurality of battery cells 20 arranged along a first direction x is provided, the battery cells 20 having a first wall 201 and a second wall 202, the first wall 201 being the wall of the battery cell 20 with the largest surface area, and the second wall 202 being connected to the first wall 201.

[0124] In step 320 , a separator 101 is provided, the separator 101 extending along a first direction x and connected to a first wall 201 of each battery cell 20 of the plurality of battery cells 20 .

[0125] In step 330, a hanging wall 204 is provided, and the hanging wall 204 is connected to the second wall 202 of each battery cell 20 among the plurality of battery cells 20, and when the battery cells 20 are installed in a power consumption device, the battery cells 20 are located below the hanging wall 204, and the hanging wall 204 is used to hang the battery cells 20.

[0126] 12 shows an exemplary block diagram of a battery 10 manufacturing apparatus 400 according to an embodiment of the present disclosure. As shown in FIG. 12, the battery 10 manufacturing apparatus 400 may include a first providing module 410, a second providing module 420, and a third providing module 430.

[0127] The first providing module 410 is used to provide a plurality of battery cells 20 arranged along a first direction x, and the battery cells 20 have a first wall 201 and a second wall 202, the first wall 201 being the wall with the largest surface area of ​​the battery cell 20, and the second wall 202 being connected to the first wall 201.

[0128] The second providing module 420 is used to provide a separator 101 , which extends along a first direction x and is connected to the first wall 201 of each battery cell 20 of the plurality of battery cells 20 .

[0129] The third providing module 430 is used to provide a hanging wall 204, and the hanging wall 204 is connected to the second wall 202 of each battery cell 20 among the plurality of battery cells 20. When the battery cell 20 is installed in a power consumption device, the battery cell 20 is located below the hanging wall 204, and the hanging wall 204 is used to hang the battery cell 20.

[0130] The following examples of the present application are illustrative and are merely for the purpose of interpreting the present application, and should not be understood as limiting the present application. If no specific techniques or conditions are shown in the examples, they are carried out according to the techniques or conditions described in the literature of this field or the product manual.

[0131] Using the battery cell 20 and separator 101 shown in the drawings, a safety test of the battery 10 was performed in accordance with GB38031-2020, and the test results are shown in Tables 1 to 4.

[0132] [Table 1]

[0133] [Table 2]

[0134] [Table 3]

[0135] [Table 4]

[0136] As can be seen from the above test results, the battery 10 of the present application can meet the requirements for safety performance.

[0137] Although the present application has been described with reference to the preferred embodiments, various modifications may be made and the elements therein may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural contradiction, all technical features of each embodiment may be arbitrarily combined. The present application is not limited to the specific embodiments disclosed in the specification, but includes all technical solutions falling within the scope of the claims. [Explanation of symbols]

[0138] 1 vehicle 10 batteries 11 Box 20 Battery Cells 21 Casing 22 Electrode Assembly 23 Connection parts 30 Controller 40 Motor 100 Battery Module 101 Separator 102 Insulating layer 103 Fixed structure 104 Fixing plate 105 First connection part 106 Second Connection 201 1st wall 202 Second wall 203 Third wall 204 Hanging wall 205 Reinforcing rib 211 Housing 212 Cover plate 213 Pressure Relief Mechanism 214 Electrode terminal 214a Positive terminal 214b Negative terminal 221 First Tab 222 Second Tab 400 Manufacturing equipment 410 First Offering Module 420 Secondary Offering Module 430 Third Offering Module 1011 First cavity 2014 2nd cavity 2041 2nd cavity 2042 Reinforcement member

Claims

1. A battery (10), comprising: The battery pack includes a plurality of battery cells (20) arranged along a first direction, a separator (101), and a hanging wall (204), The battery cell (20) comprises a first wall (201) and a second wall (202), the first wall (201) being the wall with the largest surface area of ​​the battery cell (20), and the second wall (202) being connected to the first wall (201); The separator (101) extends along the first direction and is connected to the first wall (201) of each battery cell (20) among the plurality of battery cells (20); The battery (10) is characterized in that the hanging wall (204) is connected to the second wall (202) of each battery cell (20) among the plurality of battery cells (20), and when the battery cell (20) is installed in an electric power consuming device, the battery cell (20) is located below the hanging wall (204), and the hanging wall (204) is used to hang the battery cell (20).

2. An electrode terminal (214) is provided on a third wall (203) of the battery cell (20), the third wall (203) and the second wall (202) are provided opposite each other with a gap along a second direction, and the second direction is perpendicular to the second wall (202); or 2. The battery (10) of claim 1, wherein the third wall (203) is connected to the second wall (202) and the first direction is perpendicular to the third wall (203).

3. 3. The battery (10) according to claim 1 or 2, characterized in that the separator (101) is a metal material plate.

4. 4. The battery (10) according to claim 3, characterized in that the separator (101) is provided on a surface thereof with an insulating layer (102).

5. 3. The battery (10) according to claim 1 or 2, characterized in that the separator (101) is a plate of a non-metallic material.

6. The battery (10) according to any one of claims 1 to 5, characterized in that a first cavity (1011) is provided in the separator (101).

7. The battery (10) of claim 6, wherein the first cavity (1011) is used to contain a fluid to regulate the temperature of the battery cell (20).

8. The battery (10) according to any one of claims 1 to 7, characterized in that the separator (101) has a size T1 in a third direction of 0.1 to 100 mm, and the third direction is perpendicular to the first wall (201).

9. The battery (10) according to claim 8, characterized in that a size T1 of the separator (101) in the third direction and a size T2 of the battery cell (20) in the third direction satisfy 0<T1 / T2≦7.

10. 10. The battery (10) of claim 9, wherein 0<T1 / T2≦1.

11. The battery (10) according to any one of claims 1 to 10, wherein a weight M1 of the separator (101) and a weight M2 of the battery cell (20) satisfy 0<M1 / M2≦20.

12. 12. The battery (10) of claim 11, wherein 0.1≦M1 / M2≦1.

13. The battery (10) according to any one of claims 1 to 12, characterized in that an area S1 of a surface of the separator (101) connected to the first wall (201) of the plurality of battery cells (20) and an area S2 of the first wall (201) satisfy 0.2≦S1 / S2≦30.

14. 14. The battery (10) of claim 13, wherein 2≦S1 / S2≦10.

15. The specific heat capacity Q of the separator (101) and the weight M1 of the separator (101) are 0.02 KJ / (kg ２ / ℃)≦Q / M1≦100KJ / (kg ２ The battery (10) according to any one of claims 1 to 14, characterized in that it satisfies the above condition.

16. 0.3KJ / (kg ２ / ℃)≦Q / M1≦20KJ / (kg ２ 16. The battery (10) of claim 15, characterized in that the temperature is 100° C. / ° C.

17. The battery (10) according to any one of claims 1 to 16, characterized in that a second cavity (2041) is provided inside the hanging wall (204).

18. 20. The battery (10) of claim 17, wherein the second cavity (2041) is used to contain a fluid to regulate the temperature of the battery cell (20).

19. The battery (10) of any one of claims 1 to 18, further comprising a reinforcing rib (205), the reinforcing rib (205) being provided on a surface of the hanging wall (204) that faces away from the battery cell (20) along a second direction, the second direction being perpendicular to the second wall (202).

20. 20. The battery (10) of claim 19, wherein said reinforcing rib (205) and said hanging wall (204) are of integrally molded structure.

21. The battery (10) comprises a plurality of rows of the battery cells (20) and a plurality of the separators (101) arranged along the first direction, the plurality of rows of the battery cells (20) and the plurality of the separators (101) are arranged alternately in a third direction, and the third direction is perpendicular to the first wall (201).

22. The battery (10) comprises a plurality of battery modules (100), the battery module (100) comprises at least one row of a plurality of the battery cells (20) and at least one separator (101) arranged along the first direction, and the at least one row of the battery cells (20) and the at least one separator (101) are alternately arranged in a third direction, and the third direction is perpendicular to the first wall (201). The battery (10) of any one of claims 1 to 20.

23. The battery (10) of claim 22, wherein the battery (10) module comprises N rows of the battery cells (20) and N-1 separators (101), the separators (101) being provided between two adjacent rows of the battery cells (20), and N is an integer greater than 1.

24. 24. The battery (10) of claim 22 or 23, wherein a plurality of the battery (10) modules are aligned along the third direction, with gaps between adjacent battery (10) modules.

25. The battery (10) according to any one of claims 1 to 24, characterized in that a fixing structure (103) is provided at an end of the separator (101) in the first direction, and the separator (101) is fixed to the hanging wall (204) via the fixing structure (103).

26. The battery (10) of any one of the preceding claims, characterized in that the separator (101) is adhered to the first wall (201).

27. The battery (10) of any one of the preceding claims, characterized in that the hanging wall (204) is adhered to the second wall (202).

28. An electrical power consumer comprising a battery (10) according to any one of claims 1 to 27, the battery (10) being adapted to provide electrical energy.

29. A method for manufacturing a battery (10), comprising the steps of: providing a plurality of battery cells (20) arranged along a first direction, the battery cells (20) having a first wall (201) and a second wall (202), the first wall (201) being the wall with the largest surface area of ​​the battery cells (20), and the second wall (202) being connected to the first wall (201); providing a separator (101) extending along the first direction and connected to the first wall (201) of each battery cell (20) of the plurality of battery cells (20); providing a hanging wall (204), the hanging wall (204) being connected to the second wall (202) of each battery cell (20) of the plurality of battery cells (20), the battery cell (20) being located below the hanging wall (204) when the battery cell (20) is installed in a power consuming device, the battery cell (20) being disposed in a power consuming device, and the hanging wall (204) being used to hang the battery cell (20).

30. A battery (10) manufacturing device, comprising: A first providing module, a second providing module, and a third providing module, The first providing module is used to provide a plurality of battery cells (20) arranged along a first direction, the battery cells (20) having a first wall (201) and a second wall (202), the first wall (201) being the wall with the largest surface area of ​​the battery cells (20), and the second wall (202) being connected to the first wall (201); the second providing module is used to provide a separator (101), the separator (101) extending along the first direction and connected to the first wall (201) of each battery cell (20) of the plurality of battery cells (20); the third providing module is used to provide a hanging wall (204), the hanging wall (204) is connected to the second wall (202) of each battery cell (20) among the plurality of battery cells (20), and when the battery cell (20) is installed in a power consumption device, the battery cell (20) is located below the hanging wall (204), and the hanging wall (204) is used to hang the battery cell (20).

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