Batteries and power consumption devices

Abstract

The present application belongs to the field of battery technology, and specifically discloses a battery and a power consuming device, including a battery array in which M*N battery cells are arranged in M ​​rows and N columns, where M≧1, N≧1, and M and N are both positive integers. The battery cells in each column of the battery array are arranged along a first direction, which is the length direction of the battery or the running direction of the power consuming device having the battery, and the battery cells in each row of the battery array are arranged along a second direction, which crosses both the first direction and a vertical plane. The maximum dimension of the battery cells along the second direction is D, and the maximum dimension of the battery array along the second direction is D1, where N*D / D1∈[0.70, 0.99]. By setting the value of N*D / D1 within the range of [0.70, 0.99], the battery array structure formed by all the battery cells becomes more compact, and when the battery array is installed in the battery, the internal space of the battery can be fully utilized, which can improve the space utilization rate of the battery, and is favorable for improving the energy density of the battery.

Description

【Technical Field】 , , 【0006】 【0001】 This application relates to the field of battery technology, and particularly to batteries and power consumption devices. 【Background Art】 【0002】 With the development of new energy, the fields adopting new energy as power are increasing. Since power batteries have advantages such as high energy density, being capable of cycle charging, being safe and environmentally friendly, they are widely applied in fields such as new energy vehicles, consumer electronics, and energy storage systems. 【0003】 Power batteries usually include a housing and a plurality of battery cells, and the plurality of battery cells are arranged in the housing. However, due to the conventional arrangement method of battery cells, the space utilization rate of the battery is not high, which is disadvantageous for improving the energy density of the battery. 【Summary of the Invention】 【0004】 In view of the above problems, this application provides a battery and a power consumption device that solve the problem that the space utilization rate of the conventional battery is not high. 【0005】 The first aspect of this application provides a battery including a battery array in which M*N battery cells are arranged in M rows and N columns, where M≥1, N≥1, and both M and N are positive integers. The battery cells in each column of the battery array are arranged along a first direction, and the first direction is the length direction of the battery or the traveling direction of a power consumption device having the battery. The battery cells in each row of the battery array are arranged along a second direction, and the second direction intersects both the first direction and a vertical plane. The maximum dimension of the battery cells along the second direction is D, the maximum dimension of the battery array along the second direction is D1, and N*D / D1 ∈ [0.70, 0.99]. 【0006】 According to the battery of this application, all battery cells form a battery array, each row of the battery array is arranged along a first direction, and each row of the battery array is arranged along a second direction, in which the maximum dimension of the battery cell is D and the maximum dimension of the battery array is D1, and by setting the value of N*D / D1 within the interval of [0.70, 0.99], the battery array structure formed by all battery cells is made more compact. When the battery array is installed inside the battery, the internal space of the battery can be fully utilized, improving the space utilization rate of the battery, which is advantageous for improving the energy density of the battery. 【0007】 In some embodiments of this application, N*D / D1 ∈ [0.83, 0.99]. In these embodiments, by further setting the value of N*D / D1 within the interval [0.83, 0.99], the battery array can fully perform its function, the structure becomes more compact, and it is advantageous for improving the space utilization rate and energy density of the battery. 【0008】 In some embodiments of this application, the longitudinal direction of the battery is parallel to or intersects with the travel direction of the power consumption device. In these embodiments, by installing the battery so that its longitudinal direction is parallel to or intersects with the travel direction of the power consumption device, the convenience of battery placement in the power consumption device can be improved. 【0009】 In some embodiments of this application, in the battery array, M≧2, and in each row of the battery cells, an adhesive is provided between two adjacent battery cells. and / or, in the battery array, N≧2, and in each row of the battery cells, an adhesive is provided between two adjacent battery cells. 【0010】 In this embodiment, the battery array is arranged in M ​​rows and N columns. When there are two or more battery cells in each column, two adjacent battery cells in each column are connected and fixed using adhesive. When there are two or more battery cells in each row, two adjacent battery cells in each row are connected and fixed using adhesive. This method of connecting and fixing two adjacent battery cells via adhesive has a simple structure, is convenient to implement during the assembly process, can speed up production cycle time, and can improve production efficiency. 【0011】 In some embodiments of this application, two adjacent battery cells are spaced apart. In these embodiments, when two adjacent battery cells are spaced apart, the impact on adjacent battery cells can be reduced if deformation occurs in one battery cell, thereby improving safety during the battery's use. 【0012】 In some embodiments of this application, in the battery array, M≧2, and in each row of the battery cells, a partition member is provided between two adjacent battery cells. Alternatively, in the battery array, N ≥ 2, and in each row of the battery cells, a partition member is provided between two adjacent battery cells. 【0013】 In this embodiment, by providing a partition member between two adjacent battery cells in each row, the two adjacent battery cells are spaced apart, reducing adverse effects between adjacent battery cells, allowing the battery to perform optimally, and improving safety during the battery's use. Similarly, by providing a partition member between two adjacent battery cells in each row, the two adjacent battery cells are spaced apart, reducing adverse effects between adjacent battery cells, allowing the battery to perform optimally, and improving safety during the battery's use. 【0014】 In some embodiments of this application, the partition member is adhesively fixed to the battery cell. In these embodiments, the partition member and the battery cell are connected by adhesive fixing, which has a simple structure, is convenient to implement in the assembly process, can improve production cycle time, improve production efficiency, and reduce manufacturing costs. 【0015】 In some embodiments of this application, the partition member includes at least one of a heat conduction member, a buffer member, a partition plate, and a partition beam. In these embodiments, the battery array can meet corresponding usage needs by installing the partition member as at least one of the heat conduction member, buffer member, partition plate, and partition beam, thereby separating two adjacent battery cells, and then installing the corresponding partition member according to different needs. 【0016】 In some embodiments of this application, the battery cell includes a plurality of surfaces, the plurality of surfaces including a first surface and a second surface, the first surface being the surface with the largest area, the area of ​​the second surface being smaller than the area of ​​the first surface, the first surface being provided along the first direction and intersecting the horizontal plane, the second surface being provided along the second direction and intersecting the horizontal plane, the second surfaces of two adjacent battery cells in each row of the battery cell facing each other along the first direction, and the first surfaces of two adjacent battery cells in each row facing each other along the second direction. 【0017】 In this embodiment, the first surface is the surface with the largest battery cell area, and the area of ​​the second surface is smaller than that of the first surface. By setting the installation direction of the first and second surfaces, the battery array can meet the needs of different batteries and improve the applicability of the battery. 【0018】 In some embodiments of this application, the battery cell includes a plurality of surfaces, the plurality of surfaces including a first surface and a second surface, the first surface being the surface with the largest area, the area of ​​the second surface being smaller than the area of ​​the first surface, the second surface being provided along the first direction and intersecting the horizontal plane, the first surface being provided along the second direction and intersecting the horizontal plane, the first surfaces of two adjacent battery cells in each row of the battery cell facing each other along the first direction, and the second surfaces of two adjacent battery cells in each row facing each other along the second direction. 【0019】 In this embodiment, the first surface is the surface with the largest battery cell area, and the area of ​​the second surface is smaller than that of the first surface. By setting the installation direction of the first and second surfaces, the battery array can meet the needs of different batteries and improve the applicability of the battery. 【0020】 In some embodiments of this application, the battery cell includes a plurality of surfaces, the plurality of surfaces including a first surface having the largest area, the first surfaces of two adjacent battery cells in each row are arranged opposite each other along the first direction, and the first surfaces of two adjacent battery cells in each row are arranged offset along the second direction. In these embodiments, the first surface is the surface of the battery cell with the largest area, and is arranged by the first surfaces of two adjacent battery cells in each row and by the first surfaces of two adjacent battery cells in each column, thereby enabling the battery array to meet different battery needs and improving the applicability of the battery. 【0021】 In some embodiments of this application, the battery cell includes a plurality of surfaces, the plurality of surfaces including a first surface having the largest area, the first surfaces of two adjacent battery cells in each row are offset along the first direction, and the first surfaces of two adjacent battery cells in each row are facing each other along the second direction. In these embodiments, the first surface is the surface of the battery cell with the largest area, and is positioned by the first surfaces of two adjacent battery cells in each row and by the first surfaces of two adjacent battery cells in each column, thereby enabling the battery array to meet different battery needs and improving the applicability of the battery. 【0022】 In some embodiments of this application, the partition member includes a heat conduction member, which is provided along the first direction and intersects the second direction, and the heat conduction member is provided on at least one side of the battery cells in each row, and each of the battery cells in each row is connected to one of the heat conduction members in a heat conductable manner. In these embodiments, by providing the heat conduction member and providing it in accordance with the installation method of the heat conduction member, the battery cells in each row are connected to the heat conduction member in a heat conductable manner, and heat is effectively dissipated from each row of battery cells, thereby maintaining the battery cells within a relatively safe operating temperature range and further improving the safety of battery use. 【0023】 In some embodiments of this application, a passage for housing a heat exchange medium is provided within the heat conductive member. In this embodiment, the battery cell transfers heat to the heat exchange medium in the passage via the heat conductive member, and the heat exchange medium flows through the passage. This heat exchange method has high heat exchange efficiency and a simple structure. 【0024】 In some embodiments of this application, the battery further includes a current collector that is in fluid communication with the heat conduction member, wherein the current collector is provided at one end of the heat conduction member in the first direction, or the current collectors are provided at both ends of the heat conduction member in the first direction. 【0025】 In this embodiment, by providing the current collector member, the heat exchange medium in the heat conduction member can be collected, the number of components can be reduced, and the space utilization rate in the housing can be improved. Further, when the battery is pressed or collided in the second direction, the position of the current collector member is provided so as to avoid the pressing or collision, and the possibility of damage to the current collector member is reduced. Thereby, the heat exchange medium can sufficiently dissipate heat from the battery, and the safety risk due to the temperature of the battery being too high can be further reduced. 【0026】 In some embodiments of the present application, there are two of the current collector members, and the two current collector members are provided at one end of the heat conduction member in the first direction. The two current collector members are arranged along the third direction, and the first direction, the second direction, and the third direction intersect in pairs. In this embodiment, by providing two current collector members, the current collection performance for the heat exchange medium can be improved, the heat exchange medium has a good flow rate, and the heat exchange ability of the heat exchange medium for the battery cells can be further improved. Further, by providing the two current collector members together at one end in the first direction and arranging them along the third direction, the space occupied by the current collector members in the battery along the first direction can be effectively reduced, and it becomes easy to provide other structures in the battery. 【0027】 In some embodiments of the present application, the partition member includes a heat conduction member. The heat conduction member is provided along the second direction and intersects the first direction. The heat conduction member is provided on at least one side of each row of the battery cells, and each row of the battery cells is thermally conductively connected to one of the heat conduction members. In this embodiment, by providing the heat conduction member and providing it according to the installation method of the heat conduction member, each row of battery cells is thermally conductively connected to the heat conduction member, and it is realized that each row of battery cells is effectively dissipated, thereby maintaining the battery cells within a relatively safe operating temperature range and further improving the safety of battery use. 【0028】 In some embodiments of the present application, the battery cell includes an electrode assembly, the electrode assembly includes a main body portion and a tab protruding from the main body portion, the tab is electrically connected to the electrode terminal, and the projections of the heat conduction member and the main body portion overlap at least partially along the second direction and have an overlapping region. In this embodiment, by installing the heat conduction member and the main body portion at least partially overlapping along the second direction, effective heat exchange can be performed on the main body portion through the heat conduction member, and the heat exchange effect on the battery cell can be improved. 【0029】 In some embodiments of the present application, along the third direction, the dimension of the main body portion is L1, the dimension of the heat conduction member is L2, the first direction, the second direction and the third direction intersect in pairs, and 0.5≦L2 / L1≦1.5. 【0030】 In this embodiment, by setting the range value of L2 / L1 within the interval [0.5, 1.5], the space occupied by the heat conduction member in the third direction can be reduced, and the space utilization rate of the battery can be further improved. 【0031】 In some embodiments of the present application, along the third direction, the dimension of the overlapping region is L3, and 0.5≦L3 / L1≦1. 【0032】 In this embodiment, by setting the dimension of the overlapping region in the third direction, the heat exchange area between the heat conduction member and the main body portion can be reasonably set, and the heat exchange effect of the heat conduction member on the main body portion can be greatly improved. 【0033】 In some embodiments of the present application, the battery cell includes an electrode terminal provided on at least one of the plurality of surfaces. In this embodiment, by providing the electrode terminal and realizing the electrical extraction for the battery cell through the battery terminal, an effective charge and discharge operation of the battery cell can be guaranteed. 【0034】 In some embodiments of this application, the plurality of surfaces further include a third surface, the first surface, the second surface, and the third surface intersect in pairs, and the electrode terminals are provided on the third surface. In this embodiment, by setting the position of the electrode terminals, the mounting needs of batteries with different battery cell structures can be met, and the applicability range of the battery cell can be improved. 【0035】 In some embodiments of this application, the number of third surfaces is two, the two third surfaces are arranged opposite each other and intersect the first surface, the battery cell includes two electrode terminals with opposite polarity, the two electrode terminals with opposite polarity are provided on one third surface, or the two electrode terminals with opposite polarity are provided on two third surfaces, respectively. In this embodiment, by setting the position of the electrode terminals, the needs of mounting batteries with different battery cell structures can be met, and the applicability range of the battery cell can be improved. 【0036】 In some embodiments of this application, the battery cell includes two electrode terminals with opposite polarity, the two electrode terminals with opposite polarity being provided on the third surface, or one of the two electrode terminals with opposite polarity being provided on the third surface, and the housing of the battery cell constitutes the other of the two electrode terminals with opposite polarity. In these embodiments, by setting the position of the electrode terminals, the needs of battery installations with different battery cell structures can be met, and the applicability range of the battery cell can be improved. 【0037】 In some embodiments of this application, the battery cell includes a first surface and a fourth surface provided opposite to the first surface, wherein the first surface and the fourth surface are provided opposite to each other along a first or second direction, a recess is provided on the edge of the fourth surface, the first surface is used to provide the electrode terminals, the electrode terminals are provided protruding from the first surface in the second direction and corresponding to the recess. In this embodiment, by setting the position of the electrode terminals, the needs of mounting batteries with different battery cell structures can be met, and the range of application of the battery cell can be improved. 【0038】 In some embodiments of this application, each row of battery cells comprises at least two of the battery cells, and the at least two battery cells are arranged along the first direction. In these embodiments, at least two battery cells are arranged side by side along the first direction to facilitate the layout of the battery cells within the housing. 【0039】 In some embodiments of this application, along the first direction, the maximum dimension of the battery cell is L, and the L / D value is in the range of 1 to 30. In these embodiments, the electrical capacity of the battery cell can be maximized by setting the dimensions of the battery cell in the first and second directions. 【0040】 In some embodiments of this application, the maximum dimension of the battery cell is L along the first direction, and the maximum dimension of the battery cell is H along the third direction, with the L / H ratio being in the range of 0.5 to 6, and the first, second, and third directions intersect twice each. In these embodiments, the battery cells are installed in the above-mentioned dimensional ratio, and the amount of electricity in the battery cells can be maximized. 【0041】 In some embodiments of this application, the battery further includes a housing, the housing includes two inner walls, the two inner walls are arranged opposite each other in the second direction, the maximum distance between the two inner walls is D2, N*D = n*D2, and n ∈ [0.7, 0.99]. In these embodiments, by setting the ratio between N*D and D2, the battery array can be more fitted to the battery housing, effectively improving the space utilization rate of the battery and effectively improving the energy density of the battery in order to accommodate the installation of the battery array. 【0042】 In some embodiments of this application, the battery cell is fixedly connected to the housing via a first adhesive layer, the battery further includes a heat conductive member, the heat conductive member is heat-conductively connected to the battery cell via a second adhesive layer, and the thermal conductivity of the first adhesive layer is less than or equal to the thermal conductivity of the second adhesive layer. In these embodiments, since the first adhesive layer is used to connect and fix the battery cell to the housing, and the second adhesive layer is used to make a heat-conductive connection between the battery cell and the heat conductive member, by setting the thermal conductivity of the first adhesive layer to less than or equal to the thermal conductivity of the second adhesive layer, it is possible to ensure that the battery cell dissipates heat more effectively through the heat conductive member. 【0043】 In some embodiments of this application, the ratio of the thermal conductivity of the first adhesive layer to the thermal conductivity of the second adhesive layer is in the range of 0.1 to 1. In these embodiments, the above ratio range allows for effective heat dissipation from the battery cell via the heat conductive member. 【0044】 In some embodiments of this application, the battery cell includes an electrode assembly, the electrode assembly being a wound structure and being flattened, the outer surface of the electrode assembly including two flattened planes, the two flattened planes facing each other along the second direction, Alternatively, the electrode assembly has a laminated structure, and the first electrode sheet, separator, and second electrode sheet of the electrode assembly are laminated along the second direction. 【0045】 In this embodiment, the electrode assembly is installed in a flattened wound structure, and the outer surface of the electrode assembly includes two flattened surfaces, the two flattened surfaces facing each other along the second direction, or the electrode assembly is made into a stacked structure, thereby reducing the space occupied by the electrode assembly in the first direction and facilitating the layout and mounting of other components in the first direction of the battery. 【0046】 A second aspect of this application provides a power consumption device comprising a battery as described above, the battery being used to supply electrical energy to drive the power consumption device. 【0047】 In some embodiments of this application, when the longitudinal direction of the battery and the travel direction of the power consumption device are different, the first direction is the travel direction of the power consumption device. 【0048】 In this embodiment, the first direction is set to the direction of travel of the power consumption device, the third direction intersects both the first direction and the horizontal direction, and the battery cells located inside the battery housing have a first surface and a second surface, with electrode terminals provided on the first surface and the second surface connected to the housing. The setting of the first direction facilitates the installation and layout of the battery to the power consumption device, and by adjusting the arrangement method of the battery cells inside the housing, the usage needs of different power consumption devices can be met. 【0049】 The above description is merely an outline of the proposed technology of this application, and to better understand the technical means of this application, it is possible to implement them according to the specifications. Furthermore, to facilitate understanding of the above and other objectives, features, and advantages of this application, specific embodiments of this application are listed below. [Brief explanation of the drawing] 【0050】 [Figure 1] A schematic diagram of the structure of a vehicle according to one embodiment of this application is shown. [Figure 2] A schematic diagram of the disassembled structure of a battery according to one embodiment of this application is shown. [Figure 3]A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 4] A schematic diagram of the disassembled structure of a battery cell according to one embodiment of this application is shown. [Figure 5] A schematic diagram of the disassembled structure of a battery according to one embodiment of this application is shown. [Figure 6] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 7] Figure 6 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 8] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 9] Figure 8 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 10] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 11] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 12] Figures 10 and 11 show schematic diagrams of the battery cell structure in the battery assembly. [Figure 13] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 14] Figure 13 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 15] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 16] Figure 15 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 17] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 18] Figure 17 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 19] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 20] Figure 19 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 21] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 22] Figure 21 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 23] A schematic diagram of the structure of a battery assembly according to one embodiment of this application is shown. [Figure 24] Figure 23 is a schematic diagram of the structure of a battery cell in the battery assembly shown. [Figure 25] A schematic diagram of the structure of a heat-conducting member according to one embodiment of this application is shown. [Figure 26] A schematic diagram of the structure of the second part of the housing according to one embodiment of this application is shown. [Figure 27] A schematic diagram of the structure of a battery according to one embodiment of this application (the first part of the housing is not shown) is schematically shown. [Figure 28] Figure 27 is a schematic diagram of the enlarged structure of part A in the structure shown. [Figure 29] This is a cross-sectional view of the BB section in the structure shown in Figure 27. [Figure 30] Figure 29 is a schematic diagram of the enlarged structure of section C in the structure shown. [Figure 31] Figure 27 is a schematic diagram of the battery assembly structure. [Figure 32] Figure 31 is a schematic diagram of the battery assembly from a different perspective. [Figure 33] This is a schematic diagram of the battery distribution structure in a vehicle according to one embodiment of this application. 【0051】 The symbols are as follows: 1:Power consumption device 10:Battery 11: Controller 12: Motor 20: Battery array 21: Battery cell 211: Housing 212: End cap 213: Electrode Assembly 2131: Main body 2132: Tab 214: Electrode terminal 215: Pressure release mechanism 216: 1st surface 217:Second surface 218:Third surface 30: Cabinet 31: Part 1 32:Second part 40: Heat conductive material 50: Current collector 60: 1st adhesive layer 70:Second adhesive layer [Modes for carrying out the invention] 【0052】 The embodiments of the technical proposal of this application will be described in detail below with reference to the drawings. The following embodiments are used solely to illustrate the technical proposal of this application more clearly and are not used to limit the scope of protection of this application. 【0053】 Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of the present application. The terms used herein are solely for the purpose of describing specific embodiments and are not intended to limit this application. The terms “including” and “having” in the description, claims, and above description of the drawings, and any variations thereof, are intended to cover the exclusive exclusion of these terms. 【0054】 In the description of the embodiments of this application, technical terms such as "first," "second," etc., are merely used to distinguish different subjects and should not be understood as indicating or implying relative importance, or implicitly indicating the number, specific order, or hierarchical relationship of the indicated technical features. In the description of the embodiments of this application, "plural" has two or more meanings unless otherwise specified. 【0055】 The “Examples” as used herein mean that certain features, structures, or properties described in relation to the Examples may be included in at least one Example of this Application. The phrases used in each location herein do not necessarily all refer to the same Example, nor are they mutually exclusive, independent, or alternative Examples. Those skilled in the art will understand, both expressly and implicitly, that the Examples described herein may be combined with other Examples. 【0056】 In the description of the embodiments of this application, the terms "and / or" merely indicate a relationship describing related objects, and there may be three types of relationships, such as A and / or B. For example, A may exist alone, A and B may exist simultaneously, and B may exist alone. In addition, the letter " / " in this specification generally indicates that the related objects before and after it are in an "or" relationship. 【0057】 In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more sets (including two sets), and "multiple sheets" refers to two or more sheets (including two sheets). 【0058】 In the description of the embodiments of this application, the orientations or positional relationships indicated by technical terms such as "center," "vertical direction," "horizontal direction," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial direction," "radial direction," and "circumferential direction" are based on the orientations or positional relationships shown in the drawings and are merely for the convenience and simplification of the description of the embodiments of this application. They do not indicate or imply that the specified device or element has a specific orientation or must be configured and operated in a specific orientation, and therefore should not be understood as limitations on the embodiments of this application. 【0059】 In the description of the embodiments of this application, unless otherwise specifically defined and limited, technical terms such as "attached," "connected," "linked," and "fixed" should be understood in a broad sense. For example, a fixed connection may be a detachable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or an internal communication between two elements or an interaction relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in the embodiments of this application depending on the specific circumstances. 【0060】 Currently, due to market development, the applications of power batteries are expanding rapidly. Power batteries are widely used not only in energy storage and power systems such as hydroelectric, thermal, wind, and solar power plants, but also in electric transportation such as electric bicycles, electric motorcycles, and electric vehicles, as well as in many fields such as military equipment and aerospace. As the application fields of power batteries expand, the market demand is also constantly growing. 【0061】 The applicant notes that while power batteries typically include a housing and multiple battery cells, with all battery cells arranged within the housing, conventional battery cell arrangement methods result in low space utilization and are detrimental to improving the battery's energy density. Therefore, how to solve the problem of low space utilization in conventional batteries is a technical issue that those skilled in the art should address as soon as possible. 【0062】 To address the problem of low space utilization in conventional batteries, the inventors of this application have researched and found that the battery cells within the battery housing are formed into a battery array, where the battery array contains M*N battery cells, M≧1, N≧1, and M and N are all positive integers. The battery cells in each row of the battery array are arranged along a first direction, which is the longitudinal direction of the battery or the direction of travel of the power consumption device containing the battery. The battery cells in each row of the battery array are arranged along a second direction, which intersects both the first direction and the vertical plane. The maximum dimension of a battery cell along the second direction is D, and the maximum dimension of the battery array along the second direction is D1, where N*D / D1∈[0.70, 0.99]. This makes the battery array structure formed by all the battery cells more compact, and when the battery array is installed inside a battery, it allows for full utilization of the internal space of the battery, improving the space utilization rate of the battery and contributing to an improvement in the energy density of the battery. 【0063】 The battery cell according to the embodiment of this application is used in power consumption devices such as vehicles, ships, or aircraft, but is not limited to these. A power supply system for such power consumption devices can be configured using a battery or the like equipped with the battery cell according to this application. 【0064】 In the embodiments of this application, the power consumption device that uses batteries as a power source may be, but is not limited to, a mobile phone, tablet, laptop computer, electric toy, power tool, electric motorcycle, electric car, ship, or spacecraft. Here, electric toys may include stationary or mobile electric toys, such as game consoles, electric car toys, electric boat toys, and electric airplane toys, and spacecraft may include airplanes, rockets, space shuttles, and spacecraft. 【0065】 The technical solutions described in the embodiments of this application are not limited to being applicable to the batteries and power consumption devices described above, but may be applied to all batteries and power consumption devices using batteries, including housings. However, for the sake of brevity, the following embodiments will all be described using electric vehicles as examples. 【0066】 Referring to Figure 1, Figure 1 is a schematic diagram of the structure of a vehicle according to several embodiments of the present application. The vehicle may be an engine-driven vehicle, a natural 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 vehicle, etc. A battery 10 is provided inside the vehicle, and the battery 10 may be located at the bottom, front, or rear of the vehicle. The battery 10 may be used to supply power to the vehicle, for example, as the operating power source of the vehicle. The vehicle may further include a controller 11 and a motor 12, the controller 11 being configured to control the battery 10 to supply power to the motor 12, and is used, for example, for the operating power demands of the vehicle during starting, navigation, and driving. 【0067】 In some embodiments of this application, the battery 10 may be used not only as the operating power source for the vehicle, but also as the drive power source for the vehicle 10, either in place of or in part with fuel or natural gas, to supply driving force to the vehicle. 【0068】 To meet different power consumption demands, the battery 10 may include multiple battery cells, where a battery cell refers to the smallest unit constituting a battery assembly or battery pack. Multiple battery cells are connected in series and / or parallel via electrode terminals and can be applied to various application scenarios. The battery 10 referred to in this application includes a battery assembly or battery pack, where multiple battery cells can be connected in series, parallel, or a mixed connection, where a mixed connection refers to a combination of series and parallel connections. The battery 10 may also be referred to as a battery pack. In the embodiments of this application, multiple battery cells may directly constitute a battery pack, or they may first constitute a battery assembly, and the battery assembly may constitute a battery pack. 【0069】 Figure 2 is a schematic diagram of the structure of a battery 10 according to one embodiment of this application. In Figure 2, the battery 10 includes a plurality of battery assemblies 20 and a housing 30, the plurality of battery assemblies 20 being housed inside the housing 30. The housing 30 houses the battery cells 21 or battery assemblies 20 so that liquid or other foreign matter does not affect the charging or discharging of the battery cells. The housing 30 may be a simple three-dimensional structure such as a single rectangular parallelepiped, cylinder, or sphere, or it may be a complex three-dimensional structure that combines simple three-dimensional structures such as rectangular parallelepipeds, cylinders, or spheres, but the embodiments of this application are not limited thereto. The material of the housing 30 may be an alloy material such as an aluminum alloy or an iron alloy, a polymer material such as polycarbonate or polyisocyanurate foam, or a composite material of glass fiber and epoxy resin, but the embodiments of this application are not limited thereto. 【0070】 In some embodiments, as shown in Figure 2, the housing 30 may include a first portion 31 and a second portion 32, the first portion 31 and the second portion 32 covering each other, and together they define a space for housing the battery cell 21. The second portion 32 may be a hollow structure with one end open, and the first portion 31 may be a plate-like structure. The first portion 31 is covered by the open side of the second portion 32, so that together they define a space for housing the battery cell 21. Both the first portion 31 and the second portion 32 may be hollow structures with one end open, and the open side of the first portion 31 is covered by the open side of the second portion 32. 【0071】 Figure 3 is a schematic diagram of the structure of a battery assembly 20 according to one embodiment of this application. In Figure 3, the battery assembly 20 may include a plurality of battery cells 21, and the plurality of battery cells 21 are first connected in series, in parallel, or in a mixed connection to form the battery assembly 20, and the plurality of battery assemblies 20 may be further connected in series, in parallel, or in a mixed connection to form a battery. In this application, the battery cells 21 may include lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, but the embodiments of this application are not limited thereto. The battery cells 21 may be cylindrical, flattened, rectangular parallelepiped, or have other shapes, but the embodiments of this application are not limited thereto. The battery cells 21 are generally divided into three types based on the packaging method: columnar battery cells, prismatic battery cells, and soft-pack battery cells, but the embodiments of this application are not limited thereto. 【0072】 Figure 4 shows a schematic diagram of the structure of a battery cell 21 of one embodiment of this application. The battery cell 21 includes a housing 211, an end cap 212, and an electrode assembly 213. 【0073】 The end cap 212 is a component that covers the opening of the housing 211 to isolate the internal environment of the battery cell 21 from the external environment. For example, the shape of the end cap 212 may be such that it engages with the housing 211 to match the shape of the housing 211. Preferably, the end cap 212 may be manufactured from a material having a certain hardness and strength (e.g., an aluminum alloy), so that the end cap 212 is less likely to deform when pressed and impacted, allowing the battery cell 21 to have higher structural strength and improving safety performance. The material of the end cap 212 may be one of several types, such as copper, iron, aluminum, stainless steel, aluminum alloy, or plastic, but the embodiments of this application are not particularly limited to these. In some embodiments, an insulating member may be further provided inside the end cap 212 to isolate the end cap 212 from the electrical connection members in the housing 211 and reduce the risk of short circuits. Exemplarily, the insulating member may be plastic, rubber, or the like. 【0074】 The housing 211 is an assembly that engages with the end cap 212 to form the internal environment of the battery cell 21, which may be used to house the electrode assembly 213, electrolyte, and other components. The housing 211 and the end cap 212 may be separate components, or the internal environment of the battery cell 21 may be formed by providing an opening in the housing 211 and covering the opening with the end cap 212. The end cap 212 and the housing 211 may be integrated, specifically, the end cap 212 and the housing 211 may form a common connection surface before other components enter the housing, and the end cap 212 may be placed over the housing 211 when it is necessary to seal the inside of the housing 211. The housing 211 may be of various shapes and dimensions, for example, a rectangular parallelepiped, cylindrical shape, or hexagonal prism shape. Specifically, the shape of the housing 211 may be determined according to the specific shape and dimensions of the cell assembly. The material of the housing 211 may be of any type, such as copper, iron, aluminum, stainless steel, aluminum alloy, or plastic, but the embodiments of this application are not particularly limited to these. 【0075】 In some embodiments of this application, as shown in Figures 5 to 32, the application provides a battery 10 comprising a battery array 20 in which M × N battery cells 21 are arranged in M ​​rows and N columns, where M ≥ 1, N ≥ 1, and M and N are all positive integers. The battery cells 21 in each column of the battery array 20 are arranged along a first direction, which is the longitudinal direction of the battery 10 or the direction of travel of the power consumption device 1 having the battery 10. The battery cells 21 in each row of the battery array 20 are arranged along a second direction, which intersects both the first direction and the vertical plane. As shown in Figures 31 and 32, the maximum dimension of a battery cell 21 along the second direction is D, and the maximum dimension of the battery array 20 along the second direction is D1, where N*D / D1 ∈ [0.70, 0.99]. 【0076】 In this application, the battery array 20 may have at least one row and one column structure, two rows and one column structure, one row and two columns structure, or two rows and two columns structure. As shown in Figure 31, in the embodiment shown in the drawings of the specification of this application, the battery array 20 has a configuration of multiple rows (three rows and three or more rows) and multiple columns (three columns and three or more columns). 【0077】 Furthermore, as shown in Figure 27, the battery 10 has a substantially rectangular structure and has a length direction, a width direction and a height direction. The first direction coincides with the length direction of the battery 10 or the travel direction of the power consumption device 1, and the length direction and travel direction of the battery 10 may be the same or different. The second direction and the first direction are located in the same plane and the two directions intersect. In this application, a third direction is further provided, and the third direction, the second direction and the first direction intersect twice each. 【0078】 Specifically, as shown in Figure 31, all battery cells 21 form a battery array 20, each row of the battery array 20 is installed along a first direction, and each row of the battery array 20 is installed along a second direction, where the maximum dimension of a battery cell 21 in the second direction is D, and the maximum dimension of the battery array 20 is D1, and by setting the value of N*D / D1 within the interval of [0.70, 0.99], the structure of the battery array 20 formed by all battery cells 21 can be made more compact, and when the battery array 20 is installed inside the battery 10, the internal space of the battery 10 can be fully utilized, improving the space utilization rate of the battery 10, which is advantageous for improving the energy density of the battery 10. 【0079】 In this application, the battery array 20 may also be referred to as the battery assembly. 【0080】 Furthermore, the closer the value of N*D / D1 is to 1, the higher the space utilization rate of the battery 10, and in this case, the higher the energy density of the battery 10. However, due to manufacturing tolerances or spacing between two adjacent battery cells 21 in the battery array 20, it is not possible to make the value of N*D / D1 1. If the value of N*D / D1 is less than 0.70, the space utilization rate and energy density of the battery are reduced. Therefore, depending on the actual operating conditions of the battery array 20, the value of N*D / D1 can be set within the range of [0.70, 0.99], and assuming that the battery 10 is used, the structure of the battery array 20 can be made more compact, thereby improving the space utilization rate and energy density of the battery 10. 【0081】 Furthermore, in this embodiment, the value of N*D / D1 may be 0.70, 0.75, 0.80, 0.85, 0.90, 0.95...0.99. 【0082】 In some embodiments of this application, as shown in Figure 31, in the second direction, the maximum dimension of the battery cell 21 is D, the maximum dimension of the battery array 20 is D1, and N*D / D1 ∈ [0.83, 0.99]. 【0083】 Specifically, by further setting the value of N*D / D1 within the range of [0.83, 0.99], the battery array 20 is made to perform to its full potential, while also improving the compactness of the structure of the battery array 20, thereby further contributing to the improvement of the space utilization rate and energy density of the battery 10. 【0084】 In this embodiment, the value of N*D / D1 may be 0.83, 0.85, 0.87, 0.89, 0.90, 0.92...0.99. 【0085】 The following will provide a detailed explanation using specific experimental data. 【0086】 In the experimental process, for example, the length direction of the battery cell 21 coincides with the first direction, the width direction of the battery cell 21 coincides with the second direction, and the height direction of the battery cell 21 coincides with the third direction, where D is the width of the battery cell 21, and D1 is the width of the battery array 20 in the width direction of the battery cell 21. See Table 1 for details. 【0087】 [Table 1] 【0088】 As can be seen from the above embodiment, as the value of N*D / D1 approaches 1, the energy density of the battery 10 gradually increases. Therefore, by rationally controlling the value of N*D / D1, it is possible to ensure that the battery 10 can fully perform its function and effectively ensure that the battery 10 has a high energy density. 【0089】 In some embodiments of this application, the longitudinal direction of the battery 10 is parallel to or intersects the direction of travel of the power consumption device 1. 【0090】 In this application, the direction of travel of the power consumption device 1 is the direction in which the power consumption device 1 can generate relative displacement, and this relative displacement may be forward or backward. When the length direction of the battery 10 is parallel to the direction of travel of the power consumption device 1, the length direction of the battery 10 is installed along the direction of travel of the power consumption device 1. When the length direction of the battery 10 intersects with the direction of travel of the power consumption device 1, the length direction of the battery 10 and the direction of travel of the power consumption device 1 are installed at an angle, and this angle is not equal to 0. 【0091】 Specifically, by setting the relationship between the length of the battery 10 and the direction of travel of the power consumption device 1, the battery 10 can be attached to the power consumption device 1 according to the power consumption device 1's demands, improving the convenience of positioning the battery 10 in the power consumption device 1. 【0092】 In some embodiments of this application, in the battery array 20, M≧2, and in each row of battery cells 21, an adhesive is provided between two adjacent battery cells 21. 【0093】 Specifically, if the battery array 20 is arranged in M ​​rows and N columns, and there are two or more battery cells 21 in each row, two adjacent battery cells 21 in each row are connected and fixed with adhesive. This method of connecting and fixing two adjacent battery cells 21 with adhesive has a simple structure, is convenient to implement during the assembly process, speeds up production cycle time, and improves production efficiency. 【0094】 The adhesive used to connect two adjacent battery cells 21 in each row may be a paste-like substance or double-sided tape. 【0095】 Furthermore, in this application, the rows in the battery array 20 may be arranged along a first direction or along a second direction. 【0096】 In some embodiments of this application, in the battery array 20, N≧2, and in each row of battery cells 21, an adhesive is provided between two adjacent battery cells 21. 【0097】 The adhesive used to connect two adjacent battery cells 21 in each row may be a paste-like substance or double-sided tape. 【0098】 Furthermore, in this application, the rows in the battery array 20 may be arranged along a first direction or along a second direction. 【0099】 Specifically, if the battery array 20 is arranged in M ​​rows and N columns, and there are two or more battery cells 21 in each column, two adjacent battery cells 21 in each column are connected and fixed with adhesive. This method of connecting and fixing two adjacent battery cells 21 with adhesive has a simple structure, is convenient to implement in the assembly process, speeds up production cycle time, and improves production efficiency. 【0100】 In some embodiments of this application, two adjacent battery cells 21 are spaced apart. 【0101】 Specifically, in this application, the battery array 20 includes M rows and N columns, and when both M rows and N columns are greater than 1, two adjacent battery cells 21 in each row are spaced apart, and two adjacent battery cells 21 in each column are spaced apart, thereby preventing direct contact between two adjacent battery cells 21. If a battery cell 21 deforms, the impact on adjacent battery cells 21 is reduced, improving the safety of the battery 10 during use. 【0102】 During use, the battery cells 21 expand, causing two adjacent battery cells 21 to come into contact with each other. When one battery cell 21 expands, it presses against the other battery cell 21, affecting its performance. 【0103】 Assuming that the distance between two adjacent battery cells 21 meets the demand, a smaller distance is advantageous for improving the space utilization rate and energy density of the battery 10. 【0104】 In some embodiments of this application, as shown in Figures 29 to 30, in the battery array 20, M ≥ 2, and in each row of battery cells 21, a partition member is provided between two adjacent battery cells 21. 【0105】 Specifically, by providing a partition member between two adjacent battery cells 21 in each row, the two adjacent battery cells 21 are spaced apart, reducing adverse effects between the two adjacent battery cells 21, allowing the battery 10 to perform to its full potential, and improving safety during use of the battery 10. 【0106】 Furthermore, by providing a partition member between two adjacent battery cells 21 in each row, the overall strength of the battery array 20 can be improved, adverse effects on the battery array 20 due to external factors such as vibration can be reduced, and the adaptability of the battery 10 can be effectively improved. 【0107】 In some embodiments of this application, in the battery array 20, N≧2, and in each row of battery cells 21, a partition member is provided between two adjacent battery cells 21. 【0108】 Specifically, by providing a partition between two adjacent battery cells 21 in each row, the two adjacent battery cells 21 are spaced apart, reducing adverse effects between the two adjacent battery cells 21, allowing the battery 10 to perform to its full potential, and improving safety during use of the battery 10. 【0109】 Furthermore, by providing a partition member between two adjacent battery cells 21 in each row, the overall strength of the battery array 20 is improved, adverse effects on the battery array 20 due to external factors such as vibration are further reduced, and the adaptability of the battery 10 can be improved even more effectively. 【0110】 In some embodiments of this application, the partition member is bonded and fixed to the battery cell 21. 【0111】 Specifically, by connecting the partition member and the battery cell 21 using an adhesive fixing method, the structure is simple, it is convenient to implement during the assembly process, it can speed up production cycle time, improve production efficiency, and reduce manufacturing costs. 【0112】 In some embodiments of this application, the partition member includes at least one of a heat conduction member 40, a buffer member, a partition plate, and a partition beam. 【0113】 Specifically, by using at least one of the following as the partition member: a heat conduction member 40, a buffer member, a partition plate, and a partition beam, two adjacent battery cells 21 can be separated, and the battery array 20 can be configured with partition members according to different needs so that it meets the corresponding usage needs. 【0114】 In some embodiments of this application, the partition member is a buffer member provided between two adjacent battery cells 21, which can ensure the effective mounting of the battery cells 21 by absorbing tolerances that occur during the manufacturing process of the two adjacent battery cells 21, and can also reduce the risk of the two adjacent battery cells 21 being pressed against each other and damaged by the buffer member provided between them. 【0115】 In some embodiments of this application, the partition member is a partition plate provided between two adjacent battery cells 21, and the partition plate separates the two adjacent battery cells 21, preventing them from being pressed against each other and destroyed. 【0116】 In some embodiments of this application, the partition member is a partition beam provided between two adjacent battery cells 21, and the partition beam separates the two adjacent battery cells 21, preventing them from being pressed against each other and destroyed. 【0117】 In some embodiments of this application, as shown in Figures 6 and 7, the battery cell 21 includes a plurality of surfaces, the plurality of surfaces including a first surface 216 and a second surface 217, the first surface 216 being the surface with the largest area, and the area of ​​the second surface 217 being smaller than the area of ​​the first surface 216, the first surface 216 being provided along a first direction and intersecting the horizontal plane, the second surface 217 being provided along a second direction and intersecting the horizontal plane, the second surfaces 217 of two adjacent battery cells 21 in each row being provided opposite each other along the first direction, and the first surfaces 216 of two adjacent battery cells 21 in each row being provided opposite each other along the second direction. 【0118】 Specifically, the first surface 216 is the surface with the largest area of ​​the battery cell 21, the first surface 216 is provided along the first direction and intersects the horizontal plane, and a heat conduction member 40 is provided on one side of the first surface 216, and by utilizing the heat conduction connection between the heat conduction member 40 and the first surface 216, the contact area between the heat conduction member 40 and the battery cell 21 can be increased, further improving the heat dissipation efficiency of the battery cell 21. In addition, the first surface 216 is the surface with the largest area of ​​the battery cell 21, the first surface 216 is provided along the first direction and intersects the horizontal plane, and a reinforcing structure (reinforcing beam or reinforcing rib, etc.) corresponding to the side of the housing 30 corresponding to the first surface 216 can be provided to improve the protective performance for the battery cell 21. 【0119】 The first surface 216 is the surface with the largest area of ​​the battery cell 21, and the area of ​​the second surface 217 is smaller than the area of ​​the first surface 216. By setting the installation direction of the first surface 216 and the second surface 217, the battery array 20 can meet the needs of different batteries 10 and improve the applicability of the batteries 10. 【0120】 Furthermore, based on the structure of the first surface 216 and the second surface 217, various forms of battery cells 21 can be constructed by combining them with other surfaces of the battery cell 21, such as prismatic battery cells, blade-type battery cells, and one-stop battery cells. 【0121】 In some embodiments of this application, as shown in Figures 8 and 9, the battery cell 21 includes a plurality of surfaces, the plurality of surfaces including a first surface 216 and a second surface 217, the first surface 216 being the surface with the largest area, and the area of ​​the second surface 217 being smaller than the area of ​​the first surface 216, the second surface 217 being provided along a first direction and intersecting a horizontal plane, the first surface 216 being provided along a second direction and intersecting a horizontal plane, the first surfaces 216 of two adjacent battery cells 21 in each row facing each other along the first direction, and the second surfaces 217 of two adjacent battery cells 21 in each row facing each other along the second direction. 【0122】 Specifically, the first surface 216 is the surface with the largest area of ​​the battery cell 21, the first surface 216 is provided along the second direction and intersects the horizontal plane, and a heat conduction member 40 is provided on one side of the first surface 216, and by utilizing the heat conduction connection between the heat conduction member 40 and the first surface 216, the contact area between the heat conduction member 40 and the battery cell 21 can be increased, further improving the heat dissipation efficiency of the battery cell 21. In addition, the first surface 216 is the surface with the largest area of ​​the battery cell 21, the first surface 216 is provided along the second direction and intersects the horizontal plane, and a reinforcing structure (reinforcing beam or reinforcing rib, etc.) corresponding to the side of the housing 30 corresponding to the first surface 216 can be provided to improve the protective performance for the battery cell 21. 【0123】 The first surface 216 is the surface with the largest area of ​​the battery cell 21, and the area of ​​the second surface 217 is smaller than the area of ​​the first surface 216. By setting the installation direction of the first surface 216 and the second surface 217, the battery array 20 can meet the needs of different batteries 10 and improve the applicability of the batteries 10. 【0124】 Furthermore, based on the structure of the first surface 216 and the second surface 217, various forms of battery cells 21 can be constructed by combining them with other surfaces of the battery cell 21, such as prismatic battery cells, blade-type battery cells, and one-stop battery cells. 【0125】 In some embodiments of this application, as shown in Figures 10 and 12, the battery cell 21 includes a plurality of surfaces, including a first surface 216 having the largest area, wherein, along a first direction, the first surfaces 216 of two adjacent battery cells 21 in each row are arranged facing each other, and along a second direction, the first surfaces 216 of two adjacent battery cells 21 in each row are arranged offset from each other. 【0126】 Specifically, the first surface 216 is the surface with the largest area of ​​the battery cell 21, and is installed by the first surface 216 of two adjacent battery cells 21 in each row and by the first surface 216 of two adjacent battery cells 21 in each column, thereby enabling the battery array 20 to meet the needs of different batteries 10 and improving the applicability of the battery 10. 【0127】 In this embodiment, the battery cell, which is formed by combining the structure of the first surface 216 with the other surfaces of the battery cell 21, may have a cylindrical structure. 【0128】 In some embodiments of this application, as shown in Figures 11 and 12, the battery cell 21 includes a plurality of surfaces, the plurality of surfaces including a first surface 216 having the largest area, the first surfaces 216 of two adjacent battery cells 21 in each row are offset along a first direction, and the first surfaces 216 of two adjacent battery cells 21 in each row are facing each other along a second direction. 【0129】 Specifically, the first surface 216 is the surface with the largest area of ​​the battery cell 21, and is installed by the first surface 216 of two adjacent battery cells 21 in each row and by the first surface 216 of two adjacent battery cells 21 in each column, thereby enabling the battery array 20 to meet the needs of different batteries 10 and improving the applicability of the battery 10. 【0130】 In this embodiment, the battery cell formed by combining the structure of the first surface 216 with the other surfaces of the battery cell 21 has a cylindrical structure. 【0131】 In some embodiments of this application, as shown in Figures 15, 29 to 30, the partition member includes a heat conduction member 40, the heat conduction member 40 is provided along a first direction and intersects with a second direction, the heat conduction member 40 is provided on at least one side of each row of battery cells 21, and each row of battery cells 21 is connected to one heat conduction member 40 in a heat conduction manner. 【0132】 Specifically, a heat conductive member 40 is provided within the housing 30 of the battery 10 and is provided along a first direction. By connecting at least one side of each row of battery cells 21 to the heat conductive member 40 in a heat conductive manner, effective heat dissipation of each row of battery cells 21 can be achieved, maintaining the battery cells 21 within a relatively safe operating temperature range and further improving the safety of using the battery 10. 【0133】 Furthermore, the surface on which the battery cell 21 and the heat conductive member 40 are connected in a heat-conductive manner may be the surface of the battery cell 21 with the largest surface area. In this case, the contact area between the heat conductive member 40 and the battery cell 21 can be increased, thereby improving the heat dissipation performance of the battery cell 21. To meet the requirements of different mounting layouts within the battery cell 21, the surface on which the battery cell 21 and the heat conductive member 40 are connected in a heat-conductive manner does not have to be the surface with the largest surface area. 【0134】 Furthermore, each row of battery cells 21 may have a heat conductive member 40 on one side, or it may have heat conductive members 40 on both sides, in order to satisfy the heat dissipation requirements of the battery 10. 【0135】 In some embodiments of this application, the heat conductive member 40 may be an electronic cooling sheet such as a PTC. 【0136】 In some embodiments of this application, a passage for housing a heat exchange medium is provided within the heat conduction member 40. 【0137】 Specifically, a media circulation device is connected to the heat conduction member 40, and a heat exchange medium (for example, water or oil) is injected into the passage, allowing the heat exchange medium to circulate within the passage. The battery cell 21 exchanges heat with the heat exchange medium in the passage via the heat conduction member 40, and the heat exchange medium flows through the passage, releasing the heat exchanged with the battery cell 21. This heat exchange method has high heat exchange efficiency and a simple structure. 【0138】 In some embodiments of this application, as shown in Figures 27 and 28, the battery 10 further includes a current collector 50 that is in fluid communication with a heat conduction member 40. The current collector 50 is provided at one end of the heat conduction member 40 in a first direction, or at both ends of the heat conduction member 40 in a first direction. 【0139】 Specifically, the current collector 50 is provided at one or both ends of the heat conduction member 40 in the first direction. By providing the current collector 50, the heat exchange medium within the heat conduction member 40 can be collected, reducing the number of parts and improving the space utilization rate within the housing 30. 【0140】 Furthermore, if the battery 10 is pressed or struck in the second direction, the current collector 50 is positioned to avoid being pressed or struck, reducing the possibility of damage to the current collector 50. This allows the heat exchange medium to sufficiently dissipate heat from the battery 10, further reducing safety risks due to excessively high temperatures of the battery 10. 【0141】 In some embodiments of this application, there are two current collectors 50, the two current collectors 50 are provided at one end of the heat conduction member 40 in a first direction, the two current collectors 50 are arranged along a third direction, and the first, second, and third directions intersect in pairs. 【0142】 Specifically, by providing two current collectors 50, the current collection performance to the heat exchange medium is improved, the heat exchange medium has a good flow rate, and the heat exchange capacity of the heat exchange medium to the battery cell 21 can be further improved. 【0143】 Furthermore, by providing both current collectors 50 at one end in the first direction and arranging them along the third direction, the space occupied by the current collectors 50 within the battery 10 along the first direction can be effectively reduced, and other structures can be easily provided within the battery 10. 【0144】 In some embodiments of this application, the partition member includes a heat conduction member 40 provided along a second direction and intersecting a first direction, the heat conduction member 40 provided on at least one side of each row of battery cells 21, and each row of battery cells 21 is heat conductably connected to one heat conduction member 40. 【0145】 Specifically, a heat conduction member 40 is provided within the housing 30 of the battery 10 and is provided along the second direction. By connecting at least one side of each row of battery cells 21 to the heat conduction member 40 in a heat conduction manner, effective heat dissipation of each row of battery cells 21 can be achieved, maintaining the battery cells 21 within a relatively safe operating temperature range and further improving the safety of using the battery 10. 【0146】 Furthermore, the surface on which the battery cell 21 and the heat conductive member 40 are connected in a heat-conductive manner may be the surface of the battery cell 21 with the largest surface area. In this case, the contact area between the heat conductive member 40 and the battery cell 21 can be increased, thereby improving the heat dissipation performance of the battery cell 21. To meet the requirements of different mounting layouts within the battery cell 21, the surface on which the battery cell 21 and the heat conductive member 40 are connected in a heat-conductive manner does not have to be the surface with the largest surface area. 【0147】 Furthermore, each row of battery cells 21 may be provided with a heat conductive member 40 on one side, or with heat conductive members 40 on both sides, in order to satisfy the heat dissipation requirements of the battery 10. 【0148】 In this application, the heat conduction member 40 may be an electronic cooling sheet (for example, PTC), and the heat conduction member 40 may be provided with a member that accommodates a passage for a heat exchange medium. 【0149】 In some embodiments of this application, as shown in Figure 30, the battery cell 21 includes an electrode assembly 213, the electrode assembly 213 includes a body portion 2131 and a tab 2132 protruding from the body portion 2131, the tab 2132 being electrically connected to an electrode terminal 214. Along the second direction, the projections of the heat conductive member 40 and the body portion 2131 overlap at least partially and have an overlapping region. 【0150】 Specifically, during use, the heat generated by the battery cell 21 is mainly concentrated in the main body portion 2131 of the electrode assembly 213. By providing an overlapping region between the heat conductive member 40 and the main body portion 2131, the main body portion 2131 effectively dissipates heat from the heat conductive member 40, improving the heat exchange performance of the heat conductive member 40 with respect to the main body portion 2131, maintaining the battery cell 21 at a safe temperature, and further improving safety during use. 【0151】 As shown in Figures 29 and 30, in some embodiments of this application, along the third direction, the dimension of the main body 2131 is L1, the dimension of the heat conductive member 40 is L2, the first, second, and third directions intersect twice each, and 0.5 ≤ L2 / L1 ≤ 1.5. 【0152】 In this embodiment, by setting the L2 / L1 value within the interval [0.5, 1.5], the space occupied by the heat conductive member 40 in the third direction can be reduced, further improving the space utilization rate of the battery 10. 【0153】 Furthermore, if L2 / L1 is less than 0.5, the dimensions of the heat conductive member 40 are too small, and effective heat exchange with the battery cell 21 cannot be performed. If L2 / L1 is greater than 1.5, the dimensions of the heat conductive member 40 are too large, and it tends to occupy space in the battery 10, which is detrimental to improving the space utilization rate of the battery 10. 【0154】 In this embodiment, the value of L2 / L1 may be 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4...1.5. 【0155】 In some embodiments of this application, along the third direction, the dimension of the overlapping region is L3, and 0.5 ≤ L3 / L1 ≤ 1. 【0156】 In this embodiment, by setting the dimensions of the overlapping region in the third direction, the heat exchange area between the heat conduction member 40 and the main body 2131 can be rationally set, and the heat exchange effect of the heat conduction member 40 with respect to the main body 2131 can be significantly improved. 【0157】 If L3 / L1 is less than 0.5, the overlapping area between the heat conductive member 40 and the main body 2131 is too small, resulting in poor heat exchange effect of the heat conductive member 40 with respect to the battery cell 21, and making it impossible to effectively ensure heat dissipation to the battery cell 21. 【0158】 In this embodiment, the value of L3 / L1 may be 0.5, 0.6, 0.7, 0.8, 0.9...1. 【0159】 In some embodiments of this application, the battery cell 21 includes an electrode terminal 214, the electrode terminal 214 being provided on at least one of a plurality of surfaces. 【0160】 Specifically, electrode terminals 214 are provided, and by enabling electrical extraction from the battery cell 21 via the terminals of the battery 10, effective charging and discharging operations of the battery cell 21 can be ensured. 【0161】 The battery cell 21 has multiple surfaces, and the electrode terminals 214 may be provided on the corresponding surfaces of the battery cell 21 as needed. 【0162】 In some embodiments of this application, as shown in Figures 7, 9, and 12, the plurality of surfaces further include a third surface 218, the first surface 216, the second surface 217, and the third surface 218 intersect in pairs, and the electrode terminals 214 are provided on the third surface 218. 【0163】 Specifically, the battery cell 21 includes multiple surfaces, including a first surface 216 which has the largest area, while the areas of the second surface 217 and the third surface 218 are both smaller than the area of ​​the first surface 216. By setting the position of the electrode terminals 214, the battery cell 21 can meet the mounting needs of batteries 10 with different structures, thereby improving the applicability range of the battery cell 21. 【0164】 Furthermore, by providing the electrode terminals 214 on the third surface 218, the first surface 216 and the heat conductive member 40 can be connected in a heat-conductive manner, preventing interference between the electrode terminals 214 and the heat conductive member 40, ensuring effective heat conduction between the heat conductive member 40 and the battery cell 21, and improving the heat dissipation effect of the battery cell 21 by the heat conductive member 40. 【0165】 In some embodiments of this application, there are two third surfaces 218, the two third surfaces 218 are arranged opposite each other and intersect with the first surface 216, and the battery cell 21 includes two electrode terminals 214 with opposite polarity, as shown in Figures 7 and 9, the two electrode terminals 214 with opposite polarity are provided on one third surface 218, or the two electrode terminals 214 with opposite polarity are provided on two of the third surfaces 218, respectively. 【0166】 Specifically, as shown in Figures 7, 9, 18, and 20, the battery cell 21 includes multiple surfaces, which include a first surface 216, a second surface 217, and a third surface 218. The first surface 216 is the surface with the largest area, while the areas of the second surface 217 and the third surface 218 are both smaller than the area of ​​the first surface 216. 【0167】 As shown in Figure 7 or Figure 18, when the first surface 216 is provided along a first direction and intersects with a horizontal plane, and two third surfaces 218 are provided facing each other in the first direction, two electrode terminals 214 with opposite polarities may each be provided on one third surface 218, or two electrode terminals 214 with opposite polarities may each be provided on two third surfaces 218. 【0168】 As shown in Figure 9 or Figure 20, when the first surface 216 is provided along a second direction and intersects with a horizontal plane, and two third surfaces 218 are provided facing each other in the second direction, two electrode terminals 214 with opposite polarities may each be provided on one third surface 218, or two electrode terminals 214 with opposite polarities may each be provided on two third surfaces 218. 【0169】 By setting the position of the electrode terminals 214, the mounting needs of batteries 10 with different battery cell structures can be met, further improving the applicability range of the battery cell 21. 【0170】 In some embodiments of this application, the battery cell 21 includes a first surface 216 and a fourth surface provided opposite the first surface 216, wherein the first surface 216 and the fourth surface are provided opposite each other along a first direction (as shown in Figure 14) or a second direction (as shown in Figure 16), with two intersections each of the second, first, and third directions. A recess is provided on the edge of the fourth surface. The first surface 216 is used to provide electrode terminals 214. The electrode terminals 214 are provided protruding from the first surface 216 in the second direction and correspond to the recess. 【0171】 Specifically, the battery cell 21 includes a plurality of surfaces, including a first surface 216 with the largest area, and the plurality of surfaces further include a fourth surface, with the first surface 216 and the fourth surface facing each other in a first or second direction. In two adjacent battery cells 21 of the battery array 20, the electrode terminals 214 of one battery cell 21 are provided corresponding to the recesses of the other battery cell 21, and by utilizing the interlocking structure, the combined structure of the two adjacent battery cells 21 is made more compact, the structure of the battery array 20 is made more compact, and this is advantageous for improving the space utilization rate and energy density of the battery 10. 【0172】 Furthermore, by setting the position of the electrode terminals 214, the mounting needs of batteries 10 with different battery cell structures can be met, thereby improving the applicability range of the battery cell 21. 【0173】 In some embodiments of this application, as shown in Figures 21 to 24, the multiple surfaces further include a third surface 218, where the first surface 216, the second surface 217, and the third surface 218 intersect in pairs, the third surface 218 being the surface with the largest area, and the areas of the first surface 216 and the second surface 217 are both smaller than the area of ​​the third surface 218. 【0174】 Specifically, as shown in Figure 24, the first surface 216 is provided along a first direction and intersects the horizontal plane, and the second surface 217 is provided along a second direction and intersects the horizontal plane, or as shown in Figure 22, the first surface 216 is provided along a second direction and intersects the horizontal plane, and the second surface 217 is provided along a first direction and intersects the horizontal plane. The electrode terminals 214 may be provided on the first surface 216 or the second surface 217, and by setting the position of the electrode terminals 214, the mounting needs of batteries 10 with different battery cell structures can be met, and the range of application of the battery cell 21 can be further improved. 【0175】 In some embodiments of this application, the battery cell 21 includes two electrode terminals 214 with opposite polarity, and as shown in Figures 7 and 9, the two electrode terminals 214 are provided on a third surface 218, or as shown in Figure 12, one of the two electrode terminals 214 is provided on the third surface 218 and the housing 211 of the battery cell 21 constitutes the other of the two electrode terminals 214. 【0176】 Specifically, the battery cell 21 includes multiple surfaces, including a first surface 216 which has the largest area, while the areas of the second surface 217 and the third surface 218 are both smaller than the area of ​​the first surface 216. By setting the position of the electrode terminals 214, the battery cell 21 can meet the mounting needs of batteries 10 with different structures, further improving the applicability range of the battery cell 21. 【0177】 In some embodiments of this application, as shown in Figure 6, each row of battery cells 21 includes at least two battery cells 21, and the at least two battery cells 21 are arranged along a first direction. 【0178】 Specifically, at least two battery cells 21 are installed side by side along the first direction to facilitate the layout of the battery cells 21 inside the housing 30. 【0179】 Furthermore, when at least two battery cells 21 are arranged along the first direction, the larger surface (the surface with the largest area) of the battery cell 21 may be positioned along the first direction and intersect with the horizontal plane, or it may be positioned along the second direction and intersect with the horizontal plane. 【0180】 In some embodiments of this application, along the first direction, the maximum dimension of the battery cell 21 is L, along the second direction, the maximum dimension of the battery cell 21 is D, and the range value of L / D is 1 to 30. 【0181】 Specifically, as shown in Figure 7, the maximum dimension of the battery cell 21 along the first direction is L, and the maximum dimension of the battery cell 21 along the second direction is D. By setting the dimensions of the battery cell 21 in the first and second directions, it is possible to maximize the energy density of the battery cell 21 while ensuring the support strength of the battery cell 21. 【0182】 Please understand that if the L / D ratio is greater than 30, the dimensions of the battery cell 21 along the first direction will be too large, making installation inconvenient and reducing the support strength of the battery cell 21. If the L / D ratio is less than 1, the dimensions of the battery cell 21 along the first direction will be too small, reducing the amount of electricity in the battery cell 21. 【0183】 The L / D value may be 1, 2, 3, 4, 5, 6, 7, 8...30. By setting L / D to different values, the battery cells 21 can have different shapes, and the requirements for batteries 10 of different model numbers can be met. 【0184】 In some embodiments of this application, along the third direction, the maximum dimension of the battery cell 21 is H, and the L / H range value is 0.5 to 6. The first, second, and third directions intersect twice each. 【0185】 Specifically, as shown in Figure 7, in Figure 7, the maximum dimension of the battery cell 21 along the first direction is L, and the maximum dimension of the battery cell 21 along the third direction is H. By installing the battery cell 21 with the above dimensional ratio, the support strength of the battery cell 21 can be guaranteed while maximizing the amount of electricity in the battery cell 21. 【0186】 The L / H value may be 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4...6. By setting L / H to different values, the battery cells 21 can have different shapes, and the requirements for batteries 10 of different model numbers can be met. 【0187】 In some embodiments of this application, as shown in Figures 29 and 32, the battery 10 further comprises a housing 30 including two inner walls, the two inner walls facing each other in a second direction, the maximum distance between the two inner walls being D2, where N*D=n*D2, and n∈[0.7, 0.99]. 【0188】 Specifically, by setting the ratio of N*D to D2, the battery array 20 can be fitted to the housing 30 of the battery 10, and while satisfying the mounting requirements for the battery array 20, the space utilization rate of the battery 10 can be effectively improved, and the energy density of the battery 10 can be effectively improved. 【0189】 Furthermore, if the value of n is less than 0.7, the space utilization rate and energy density of the battery 10 will be reduced, and if the value of n is greater than 0.99, it cannot be guaranteed that the battery array 20 will be effectively mounted inside the housing 30. Therefore, by setting the value of n within the interval [0.7, 0.99], it is possible to effectively achieve both requirements for mounting the battery array, improving the battery space utilization rate, and improving the battery energy density. 【0190】 The value of n may be 0.7, 0.75, 0.8, 0.85, 0.9, 0.95...0.99. Setting n to a different value improves the space utilization rate within the housing 30, which is advantageous for improving the space utilization rate and energy density of the battery 10. 【0191】 In some embodiments of this application, a battery cell 21 is fixedly connected to a housing 30 via a first adhesive layer 60, and the battery 10 further includes a thermal conductive member 40 that is thermally conductively connected to the battery cell 21 via a second adhesive layer 70, wherein the thermal conductivity of the first adhesive layer 60 is less than or equal to the thermal conductivity of the second adhesive layer 70. 【0192】 Specifically, since the first adhesive layer 60 is used to connect and fix the battery cell 21 to the housing 30, and the second adhesive layer 70 is used to make a heat-conductive connection between the battery cell 21 and the heat-conducting member 40, by setting the thermal conductivity of the first adhesive layer 60 to be less than or equal to that of the second adhesive layer 70, it is possible to ensure that the battery cell 21 dissipates heat more effectively through the heat-conducting member 40. 【0193】 In some embodiments of this application, the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is in the range of 0.1 to 1. 【0194】 Specifically, by installing them within the above ratio range, the battery cells 21 can be effectively heated and dissipated through the heat conductive member 40. 【0195】 If the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is less than 0.1, the thermal conductivity of the first adhesive layer 60 is poor, and the side of the battery cell 21 connected to the first adhesive layer 60 cannot transfer heat through the first adhesive layer 60. In this case, if heat transfer is performed only through the second adhesive layer 70, a good heat dissipation effect for the battery cell 21 cannot be ensured. If the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 is less than 0.1, the thermal conductivity of the first adhesive layer 60 is stronger than that of the second adhesive layer 70, weakening the ability of the battery cell 21 to dissipate heat through the heat conduction member 40, and the heat dissipation effect of the battery cell 21 deteriorates. 【0196】 Furthermore, the ratio of the thermal conductivity of the first adhesive layer 60 to the thermal conductivity of the second adhesive layer 70 may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9...1. 【0197】 Furthermore, in this embodiment, the first adhesive layer 60 and the second adhesive layer 70 may be the same adhesive, but their thermal conductivity may differ, that is, the thermal conductivity of the first adhesive layer 60 may be lower than that of the second adhesive layer 70. For example, by selecting a thermally conductive polyurethane adhesive layer for the first adhesive layer 60 and the second adhesive layer 70, and adding different amounts of thermally conductive particles therein, different thermal conductivity can be achieved. 【0198】 Furthermore, the first adhesive layer 60 and the second adhesive layer 70 may be two different types of adhesives. For example, the first adhesive layer 60 may be a structural adhesive, a foam-filling adhesive, a pressure-sensitive adhesive, or a potting adhesive, and the second adhesive layer 70 may be a thermally conductive adhesive. 【0199】 In some embodiments of this application, the battery cell 21 includes an electrode assembly 213. The electrode assembly 213 is a wound and flattened structure, and the outer surface of the electrode assembly 213 includes two flattened surfaces facing each other along a second direction, or the electrode assembly 213 is a laminated structure, and the first electrode sheet, separator and second electrode sheet of the electrode assembly 213 are laminated along the second direction. 【0200】 The electrode assembly 213 is a component that undergoes an electrochemical reaction in the battery cell 21. The battery cell 21 may contain one or more electrode assemblies 213 inside. The electrode assembly 213 is mainly formed by winding or laminating (arranging) electrode sheets (positive electrode sheet and negative electrode sheet), and usually a separator is provided between the positive electrode sheet (first electrode sheet) and the negative electrode sheet (second electrode sheet). The portion of the electrode sheets (first electrode sheet and second electrode sheet) that has active material constitutes the main body portion 2131 of the electrode assembly 213, and the portions of the first electrode sheet and second electrode sheet that do not have active material each constitute a tab 2132. The positive electrode tab and the negative electrode tab may both be located at one end of the main body portion 2131, or they may each be located at both ends of the main body portion 2131. 【0201】 Specifically, by making the electrode assembly 213 a flattened wound structure and having the outer surface of the electrode assembly 213 consist of two flattened surfaces facing each other along the second direction, or by making the electrode assembly 213 a stacked structure, the space occupied by the electrode assembly 213 in the second direction is reduced, making it easier to lay out and attach other components of the battery 10 in the second direction. 【0202】 In some embodiments of this application, the battery cell 21 further includes a pressure relief mechanism 215, the pressure relief mechanism 215 being provided on any surface of the battery cell 21. 【0203】 Specifically, if the battery cell 21 experiences thermal runaway, the pressure release mechanism 215 will promptly release the internal pressure of the battery cell 21, thereby avoiding safety hazards such as the explosion of the battery cell 21. 【0204】 The pressure release mechanism 215 may be provided on the first surface 216, second surface 217, third surface 218, or other surface of the battery cell 21. 【0205】 In some embodiments of this application, the pressure release mechanism 215 and the electrode terminals 214 may be provided on the first surface 216, the second surface 217, or the third surface 218. 【0206】 Specifically, as shown in Figures 6 to 12, both the pressure release mechanism 215 and the electrode terminals 214 are provided on the first surface 216. By providing the pressure release mechanism 215 on the first surface 216, synchronous installation of the pressure release mechanism 215 and the electrode terminals 214 becomes easier, improving assembly convenience and production efficiency. 【0207】 Furthermore, if the pressure release mechanism 215 is provided on the second surface 217, the second surface 217 is connected to the housing 30, thereby protecting the outside of the pressure release mechanism 215 with the housing 30 and reducing the possibility of the pressure release mechanism 215 being subjected to impact. 【0208】 Furthermore, the installation position of the pressure release mechanism 215 can accommodate the requirements of different types of battery cells 21, thereby further improving the safety performance of the battery 10. 【0209】 A second aspect of this application provides a power consumption device 1 including a battery 10 as described above, the battery 10 being used to supply electrical energy and drive the power consumption device 1 to move. 【0210】 In some embodiments of this application, when the longitudinal direction of the battery 10 is different from the travel direction of the power consumption device 1, the first direction is the travel direction of the power consumption device 1. 【0211】 Specifically, the first direction is set as the travel direction of the power consumption device 1, and the third direction intersects with the first direction and the horizontal direction, respectively. The battery cells 21 located inside the housing 30 of the battery 10 have a first surface 216 and a second surface 217. Electrode terminals 214 are provided on the first surface 216, and the second surface 217 is connected to the housing 30. The setting of the first direction facilitates the installation and layout of the battery 10 to the power consumption device 1, and the arrangement of the battery cells 21 inside the housing 30 can be adjusted to meet the different usage needs of the power consumption device 1. 【0212】 The above description is merely an outline of the proposed technology of this application. To better understand the technical means of this application, it can be implemented according to the specifications. Furthermore, to make the above and other objectives, features, and advantages of this application easier to understand, specific embodiments of this application are listed below. 【0213】 In embodiments of this application, as shown in Figures 1 to 33, the application provides a battery 10 which includes a battery array 20 in which M*N battery cells 21 are arranged in M ​​rows and N columns, where M≧1, N≧1, and M and N are all positive integers. The battery cells 21 in each column of the battery array 20 are arranged along a first direction, which is the longitudinal direction of the battery 10 or the direction of travel of the power consumption device 1 having the battery 10. The battery cells 21 in each row of the battery array 20 are arranged along a second direction, which intersects both the first direction and the vertical plane. The maximum dimension of a battery cell 21 along the second direction is D, and the maximum dimension of the battery array 20 along the second direction is D1, where N*D / D1∈[0.70, 0.99]. 【0214】 Specifically, all battery cells 21 form a battery array 20, each row of the battery array 20 is arranged along a first direction, and each row of the battery array 20 is arranged along a second direction. In the second direction, the maximum dimension of a battery cell 21 is D, and the maximum dimension of the battery array 20 is D1. By setting the value of N*D / D1 within the interval [0.70, 0.99], the structure of the battery array 20 formed by all battery cells 21 is made more compact. When the battery array 20 is installed inside the battery 10, this reduces the internal space occupied by the battery 10, improves the space utilization rate of the battery 10, and is advantageous for improving the energy density of the battery 10. 【0215】 Furthermore, in this application, the value of N*D / D1 is further set within the range of [0.83, 0.99]. 【0216】 Furthermore, the battery 10 further includes a housing 30, the housing 30 includes two inner walls, the two inner walls are positioned opposite each other in a second direction, the maximum distance between the two inner walls is D2, where N*D=n*D2, and n∈[0.7, 0.99]. 【0217】 Furthermore, in the battery array 20, two adjacent battery cells 21 are bonded and fixed together with an adhesive. 【0218】 Furthermore, a partition member may be provided between two adjacent battery cells 21 in each column, and a partition member may be provided between two adjacent battery cells 21 in each row, and the partition member and the battery cells 21 are fixed together by adhesive. 【0219】 Furthermore, the partition member includes at least one of the heat conduction member 40, a buffer member, a partition plate, and a partition beam, and in this application, the partition member includes the heat conduction member 40. 【0220】 Specifically, the partition member includes a heat conduction member 40, which is provided inside the housing 30 of the battery 10, is provided along a first direction, is heat conductably connected to the battery cell 21, and the surface on which the battery cell 21 and the heat conduction member 40 are heat conductably connected may be the surface of the battery cell 21 with the largest area. A heat exchange medium passage is provided inside the heat conduction member 40, and the heat exchange medium flows through the heat exchange medium passage, transferring heat to the battery cell 21 via the heat conduction member 40. 【0221】 Other members of the partition member are bonded and fixed to the battery cell 21 by a first adhesive layer, and the heat conductive member 40 and the battery cell 21 are bonded and fixed by a second adhesive layer, and the ratio of the thermal conductivity of the first adhesive layer to the thermal conductivity of the second adhesive layer is in the range of 0.1 to 1. 【0222】 Furthermore, the battery cell 21 includes a plurality of surfaces, including a first surface 216, a second surface 217, and a third surface 218. If the first surface 216 is the surface with the largest area and there are two of them, the two first surfaces 216 are arranged facing each other along a second direction, in which case the second surfaces 217 of two adjacent battery cells 21 in each column are arranged facing each other, and the first surfaces 216 of two adjacent battery cells 21 in each row are arranged facing each other. If the first surface 216 is the surface with the largest area and there are two of them, the two first surfaces 216 are arranged facing each other along a first direction, in which case the first surfaces 216 of two adjacent battery cells 21 in each column are arranged facing each other, and the second surfaces 217 of two adjacent battery cells 21 in each row are arranged facing each other. If the first surface 216 is the surface with the largest area and there is only one of them, the first surface 216 can constitute the outer periphery of the battery cell 21. In this case, two adjacent battery cells 21 in each row are arranged along the first direction, and two adjacent battery cells 21 in each row are offset from each other, or two adjacent battery cells 21 in each row are arranged along the first direction, and two adjacent battery cells 21 in each row are offset from each other. 【0223】 Along the first direction, the maximum dimension of the battery cell 21 is L, along the second direction, the maximum dimension of the battery cell 21 is D, and the L / D value is in the range of 1 to 30. Along the third direction, the maximum dimension of the battery cell 21 is H, and the L / H value is in the range of 0.5 to 6. 【0224】 Furthermore, the battery cell 21 includes electrode terminals 214, each electrode terminal 214 including two electrode terminals 214 with opposite polarity, and the two electrode terminals 214 with opposite polarity may be provided on the same surface of the battery cell 21 or on different surfaces of the battery cell 21, one of which may be provided on the surface of the battery cell 21 and the other may be formed by the housing 211 of the battery cell of the battery 10. 【0225】 Furthermore, the battery cell 21 is provided with a pressure release mechanism 215, which may be provided on any one of the first surface 216, the second surface 217, and the third surface 218. In the structure shown in the drawings of this specification, both the pressure release mechanism 215 and the electrode terminals 214 are provided on the first surface 216. 【0226】 Furthermore, along the second direction, the projections of the heat conduction member 40 and the main body 2131 overlap at least partially, and have an overlapping region. 【0227】 Furthermore, along the third direction, the dimension of the main body 2131 is L1, and the dimension of the heat conductive member 40 is L2, where 0.5 ≤ L2 / L1 ≤ 1.5. 【0228】 Furthermore, along the third direction, the dimension of the overlapping region is L3, and 0.5 ≤ L3 / L1 ≤ 1. 【0229】 Furthermore, the battery 10 further includes a current collector 50 provided at the end of the heat conduction member 40 in the first direction and communicating with the heat exchange medium passage of the heat conduction member 40. 【0230】 The embodiments described above are merely illustrative of the technical concepts of this application and do not limit them. While this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical concepts described in the embodiments or make equivalent substitutions for some or all of the technical features therein. It should be understood that such modifications or substitutions do not deviate the essence of the corresponding technical concepts from the scope of the technical concepts in the embodiments of this application, and that they should all be included within the scope of the claims and specification of this application. In particular, the technical features described in each embodiment can be combined in any way, provided there is no structural inconsistency. This application is not limited to the specific embodiments disclosed herein, but includes all technical concepts included in the claims.

Claims

[Claim 1] The battery array includes M*N battery cells (21) arranged in an M x N column, where M ≥ 1, N ≥ 1, and both M and N are positive integers. Each row of the battery array has a battery cell (21) arranged along a first direction, the first direction being the longitudinal direction of the battery or the direction of travel of the power consumption device having the battery, and each row of the battery array has a battery cell (21) arranged along a second direction, the second direction intersecting both the first direction and the vertical plane. The maximum dimension of the battery cell (21) along the second direction is D, and the maximum dimension of the battery array along the second direction is D1, where N*D / D1 ∈ [0.70, 0.99]. The battery further includes a housing (30), The battery cell (21) is fixedly connected to the housing (30) via a first adhesive layer (60), the battery further includes a heat conductive member (40), the heat conductive member (40) is heat-conductively connected to the battery cell (21) via a second adhesive layer (70), and the thermal conductivity of the first adhesive layer (60) is less than or equal to the thermal conductivity of the second adhesive layer (70). A battery characterized by the following features. [Claim 2] The battery according to claim 1, characterized in that N*D / D1 ∈ [0.83, 0.99]. [Claim 3] The battery according to claim 1, characterized in that the longitudinal direction of the battery is parallel to or intersects with the travel direction of the power consumption device. [Claim 4] In the battery array, M ≥ 2, and in each row of the battery cells (21), an adhesive is provided between two adjacent battery cells (21), and / or The battery according to claim 1, wherein in the battery array, N ≥ 2, and in each row of the battery cells (21), an adhesive is provided between two adjacent battery cells (21). [Claim 5] The battery according to claim 1, characterized in that two adjacent battery cells are provided with a gap between them. [Claim 6] The battery according to Claim 1, wherein in the battery array, M ≥ 2, and in each row of the battery cells (21), a partition member is provided between two adjacent battery cells (21), or, in the battery array, N ≥ 2, and in each row of the battery cells (21), a partition member is provided between two adjacent battery cells (21). [Claim 7] The battery according to claim 6, characterized in that the partition member is adhesively fixed to the battery cell. [Claim 8] The battery according to claim 6, characterized in that the partition member further includes at least one of the heat conductive member (40), the buffer member, the partition plate, and the partition beam. [Claim 9] The battery according to claim 1, wherein the battery cell (21) includes a plurality of surfaces, the plurality of surfaces including a first surface (216) and a second surface (217), the first surface (216) is the surface with the largest area, the area of ​​the second surface (217) is smaller than the area of ​​the first surface (216), the first surface (216) is provided along the first direction and intersects the horizontal plane, the second surface (217) is provided along the second direction and intersects the horizontal plane, the second surfaces (217) of two adjacent battery cells in each row of the battery cell (21) are provided facing each other along the first direction, and the first surfaces (216) of two adjacent battery cells in each row of the battery cell (21) are provided facing each other along the second direction. [Claim 10] The battery according to claim 1, wherein the battery cell (21) includes a plurality of surfaces, the plurality of surfaces include a first surface (216) and a second surface (217), the first surface (216) is the surface with the largest area, the area of ​​the second surface (217) is smaller than the area of ​​the first surface (216), the second surface (217) is provided along the first direction and intersects the horizontal plane, the first surface (216) of two adjacent battery cells in each row of the battery cell (21) is provided facing each other along the first direction, and the second surface (217) of two adjacent battery cells in each row of the battery cell (21) is provided facing each other along the second direction. [Claim 11] The battery according to claim 1, wherein the battery cell (21) includes a plurality of surfaces, the plurality of surfaces including a first surface (216) having the largest area, the first surfaces (216) of two adjacent battery cells in each row of the battery cell (21) are arranged facing each other along the first direction, and the first surfaces (216) of two adjacent battery cells in each row of the battery cell (21) are arranged offset along the second direction. [Claim 12] The battery according to claim 1, wherein the battery cell (21) includes a plurality of surfaces, the plurality of surfaces include a first surface (216) having the largest area, the first surfaces (216) of two adjacent battery cells in each row of the battery cell (21) are offset along the first direction, and the first surfaces (216) of two adjacent battery cells in each row of the battery cell (21) are facing each other along the second direction. [Claim 13] The battery according to claim 6, wherein the partition member includes the heat conductive member (40), the heat conductive member (40) is provided along the first direction and intersects the second direction, the heat conductive member (40) is provided on at least one side of the battery cells (21) in each row, and each of the battery cells (21) in each row is connected to one of the heat conductive members (40) in a heat conductive manner. [Claim 14] The battery according to claim 13, characterized in that a passage for housing a heat exchange medium is provided within the heat conductive member (40). [Claim 15] The present invention further includes a current collector (50) that is in fluid communication with the heat conductive member (40), The battery according to claim 14, characterized in that the current collector (50) is provided at one end of the heat conductive member (40) in the first direction, or the current collector (50) is provided at both ends of the heat conductive member (40) in the first direction. [Claim 16] The battery according to claim 15, characterized in that there are two current collectors (50), the two current collectors (50) are provided at one end of the heat conduction member (40) in the first direction, the two current collectors (50) are arranged along the third direction, and the first direction, the second direction and the third direction intersect twice each. [Claim 17] The battery according to claim 6, wherein the partition member includes the heat conductive member (40), the heat conductive member (40) is provided along the second direction and intersects the first direction, and the heat conductive member (40) is provided on at least one side of the battery cells (21) in each row, and each of the battery cells (21) in each row is connected to one of the heat conductive members (40) in a heat conductive manner. [Claim 18] The battery according to claim 13, wherein the battery cell (21) includes an electrode terminal (214) and an electrode assembly (213), the electrode assembly (213) includes a main body (2131) and a tab (2132) protruding from the main body (2131), the tab (2132) being electrically connected to the electrode terminal (214), and the projections of the heat conductive member (40) and the main body (2131) overlap at least partially along the second direction and have an overlapping region. [Claim 19] The battery according to claim 18, characterized in that, along the third direction, the dimension of the main body (2131) is L1, the dimension of the heat conductive member (40) is L2, the first direction, the second direction and the third direction intersect twice each, and 0.5 ≤ L2 / L1 ≤ 1.

5. [Claim 20] The battery according to claim 19, characterized in that, along the third direction, the dimension of the overlapping region is L3 and 0.5 ≤ L3 / L1 ≤ 1. [Claim 21] The battery according to claim 9, wherein the battery cell (21) includes an electrode terminal (214), and the electrode terminal (214) is provided on at least one of the plurality of surfaces. [Claim 22] The battery according to claim 21, wherein the plurality of surfaces further include a third surface (218), the first surface (216), the second surface (217), and the third surface (218) intersect in pairs, and the electrode terminal (214) is provided on the third surface (218). [Claim 23] The battery according to claim 22, wherein the number of third surfaces (218) is two, the two third surfaces (218) are provided opposite to each other and each intersects with the first surface (216), and the battery cell (21) includes two electrode terminals (214) with opposite polarity, the two electrode terminals (214) with opposite polarity are provided on one of the third surfaces (218), or the two electrode terminals (214) with opposite polarity are provided on two of the third surfaces (218). [Claim 24] The battery according to claim 22, wherein the battery cell (21) includes two electrode terminals (214) with opposite polarity, the two electrode terminals (214) with opposite polarity are provided on the third surface (218), or one of the two electrode terminals (214) with opposite polarity is provided on the third surface (218), and the housing (211) of the battery cell (21) constitutes the other of the two electrode terminals (214) with opposite polarity. [Claim 25] The battery according to claim 21, wherein the battery cell (21) includes a first surface (216) and a fourth surface provided opposite to the first surface (216), the first surface (216) and the fourth surface are provided opposite to each other along a first or second direction, a recess is provided on the edge of the fourth surface, the first surface (216) is used to provide the electrode terminal (214), and the electrode terminal (214) is provided protruding from the first surface (216) in the second direction and corresponding to the recess. [Claim 26] The battery according to claim 1, wherein each row of the battery cells (21) comprises at least two of the battery cells (21), and the at least two of the battery cells (21) are arranged along the first direction. [Claim 27] The battery according to claim 1, characterized in that, along the first direction, the maximum dimension of the battery cell (21) is L, and the value of L / D is in the range of 1 to 30. [Claim 28] The battery according to claim 1, characterized in that, along the first direction, the maximum dimension of the battery cell (21) is L, along the third direction, the maximum dimension of the battery cell (21) is H, the value of L / H is in the range of 0.5 to 6, and the first direction, the second direction and the third direction intersect twice each. [Claim 29] The battery according to claim 1, wherein the housing (30) includes two inner walls, the two inner walls are arranged opposite to each other in the second direction, the maximum distance between the two inner walls is D2, N*D = n*D2, and n ∈ [0.7, 0.99]. [Claim 30] The battery according to claim 1, characterized in that the ratio of the thermal conductivity of the first adhesive layer (60) to the thermal conductivity of the second adhesive layer (70) is in the range of 0.1 to 1. [Claim 31] The battery cell (21) includes an electrode assembly (213), the electrode assembly (213) having a wound structure and being flattened, the outer surface of the electrode assembly (213) including two flattened surfaces, the two flattened surfaces facing each other along the second direction, or The battery according to claim 1, wherein the electrode assembly (213) has a laminated structure, and the first electrode sheet, separator and second electrode sheet of the electrode assembly (213) are laminated along the second direction. [Claim 32] A power consumption device comprising a battery according to any one of claims 1 to 31, The power consumption device is characterized in that the battery is used to supply electrical energy and drive the power consumption device to move. [Claim 33] The power consumption device according to claim 32, characterized in that, when the longitudinal direction of the battery and the travel direction of the power consumption device are different, the first direction is the travel direction of the power consumption device.

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