Battery box and battery

Abstract

Provided in the present application are a battery box and a battery. The battery box comprises: a box body having an inner bottom wall, and a first inner side wall and a second inner side wall which are connected to the inner bottom wall and arranged opposite to each other; a first support detachably arranged on the first inner side wall and parallel to the inner bottom wall; and a second support detachably arranged on the second inner side wall and aligned with the first support.

Description

Battery box and battery

[0001] This application claims priority to Chinese patent applications filed on October 22, 2024, with application numbers 202411481489.9 and 202422560669.8, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of battery technology, specifically to a battery box and a battery. Background Technology

[0003] In related technologies, when assembling batteries, if a multi-layer battery pack stacking design is adopted, it is usually chosen to first install a fixing frame on the vehicle frame, and then place the independently sealed standard battery pack on the fixing frame. This requires that sufficient assembly space be reserved for the installation of the battery pack when installing the fixing frame to ensure that the battery pack can be installed smoothly. Invention Overview

[0004] However, after the battery pack is installed, only a portion of these reserved assembly spaces are used to place external cables and water cooling pipes between the battery packs, leaving a significant amount of space unused. This arrangement results in low space utilization of the battery system.

[0005] Some implementations of this application provide a battery box and battery to improve the low space utilization of battery systems in related technologies.

[0006] Firstly, some implementations of this application provide a battery box, including:

[0007] The box has an inner bottom wall, and a first inner side wall and a second inner side wall that are connected to and opposite to the inner bottom wall;

[0008] The first bracket is detachably mounted on the first inner sidewall and is parallel to the inner bottom wall;

[0009] The second bracket is detachably mounted on the second inner sidewall and aligned with the first bracket.

[0010] Both the first and second brackets are configured to support the battery module.

[0011] Secondly, some implementations of this application provide a battery, including the battery box as described above, and also a battery module;

[0012] The two ends of the battery module are connected to the first bracket and the second bracket, respectively. Beneficial effects

[0013] This application allows the first and second brackets to be detachably connected to the first and second inner sidewalls of the housing. This facilitates the removal of the first and second brackets that are not connected to the battery modules when installing the battery modules, thereby reducing the assembly space occupied between the first and second brackets. This allows the space inside the battery housing to accommodate as many battery modules as possible, helping to arrange more batteries within the battery system space and thus improving the low space utilization of the battery system.

[0014] The battery provided in this application has the battery module installed inside the box, and its two ends are respectively connected to the first bracket and the second bracket. The first bracket and the second bracket are respectively detachably installed on the first inner side wall and the second inner side wall. On the one hand, it is convenient to install and fix the battery module inside the box. On the other hand, it helps to make full use of the space inside the box to arrange the battery module, so that as many battery modules as possible can be installed in the battery box, thereby improving the space utilization rate of the battery box. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 is a partial cross-sectional view of a battery box provided by some implementations of this application.

[0017] Figure 2 is a partial cross-sectional view of a battery box with an internal first sub-bracket provided by some implementations of this application, wherein the second bracket has not yet been installed.

[0018] Figure 3 is a partial cross-sectional view of a battery box with an internal first support layer provided by some implementations of this application, wherein the first support and the second support have not yet been installed.

[0019] Figure 4 is a partial cross-sectional view of a battery box with an internal first sub-support seat provided by some implementations of this application, wherein the first bracket and the second bracket have not yet been installed.

[0020] Figure 5 is a partial cross-sectional view of another battery box provided by some implementations of this application, wherein the first bracket and the second bracket have not yet been installed.

[0021] Figure 6 is a partial cross-sectional view of a battery with an internal battery module provided by some implementations of this application.

[0022] Figure 7 is a schematic diagram of the structure of a battery module provided by some implementation methods of this application.

[0023] Figure 8 is a partial cross-sectional view of a battery internally filled with battery modules, provided by some implementations of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Housing; 10. Inner bottom wall; 2. First bracket; 21. First sub-bracket; 3. Second bracket; 4. First support part; 41. First support base; 5. Second support part; 6. First bottom bracket; 7. Second bottom bracket; 8. Battery module; 81. First surface; 82. Second surface; 83. Heat sink; 9. Thermal adhesive. Embodiments of the present invention

[0026] Please refer to Figure 1, which is a partial cross-sectional view of a battery box provided in some implementations of this application. An embodiment of this application provides a battery box, including: a box body 1 having an inner bottom wall 10, and a first inner side wall and a second inner side wall connected to and disposed opposite to the inner bottom wall 10. A first bracket 2 is detachably disposed on the first inner side wall and parallel to the inner bottom wall 10. A second bracket 3 is detachably disposed on the second inner side wall and aligned with the first bracket 2. Both the first bracket 2 and the second bracket 3 are configured to support a battery module 8.

[0027] It should be noted that the alignment setting in this article means that the distance between the second support 3 and the first support 2 and the inner bottom wall 10 is the same; or, the distance between the second support 3 and the first support 2 and the inner bottom wall 10 is the same, and the first support 2 and the second support 3 are aligned with each other along the direction from one of the first inner wall and the second inner wall to the other.

[0028] In related technologies, when installing battery modules, it is usually necessary to first install a fixing frame on the vehicle frame, and then fix the battery module 8 to the fixing frame. In order to facilitate the installation of the battery module 8, a large installation space needs to be reserved for each battery module 8. However, after the battery module 8 is assembled, only a portion of the reserved installation space is used to place the connecting parts between the battery modules 8, and a large amount of space remains unused, resulting in low space utilization of the battery system. In the embodiment of this application, the first bracket 2 and the second bracket 3 are used to support and fix the battery module 8. This application makes the first bracket 2 and the second bracket 3 detachably set on the first inner side wall and the second inner side wall of the housing 1, respectively, which facilitates the installation and fixing of the battery module 8 and the like inside the housing 1. On the other hand, when installing battery modules 8, the first bracket 2 and the second bracket 3 that are not connected to battery modules 8 can be removed, reducing the assembly space occupied by the first bracket 2 and the second bracket 3. This reduces the installation space reserved for each battery module 8, thereby reducing the unused space after battery module 8 assembly. This helps to make full use of the space inside the housing 1 to arrange as many battery modules 8 as possible. Specifically, when installing each battery module 8, only the first bracket 2 and the second bracket 3 used to connect to the battery module 8 to be installed are connected to the housing 1. This reduces the impact of the remaining first bracket 2 and second bracket 3 on the installation of the current battery module 8 (such as obstructing the installer's view or hindering the installer from using tools to connect the battery module 8 to the bracket) when all first bracket 2 and second bracket 3 are pre-installed on the housing 1. This increases the working space for installing battery modules 8, thereby helping to make full use of the space inside the housing 1 to arrange battery modules 8, allowing as many battery modules 8 as possible to be installed in the battery box, thus improving the space utilization rate of the battery box. Furthermore, the first bracket 2 and the second bracket 3 of this application embodiment are detachably disposed on the first inner sidewall and the second inner sidewall of the housing 1, which also facilitates the disassembly and maintenance of the battery.

[0029] In some embodiments, the first support 2 may be an integral strip structure extending along the width direction of the first inner sidewall; or, the first support 2 may be a plurality of block structures spaced apart along the width direction of the first inner sidewall. The second support 3 may be an integral strip structure extending along the width direction of the second inner sidewall; or, the second support may be a plurality of block structures spaced apart along the width direction of the second inner sidewall.

[0030] It is understood that the first support 2 and the second support 3 can be both integral strip structures or multiple block structures spaced apart; or, one of the first support 2 and the second support 3 can be an integral strip structure, and the other can be multiple block structures spaced apart.

[0031] For example, please refer to Figure 2, which is a partial cross-sectional view of a battery box with an internal first sub-support provided in some implementations of this application, wherein the second support has not yet been installed. In some embodiments of this application, the first support 2 includes a plurality of first sub-supports 21 spaced apart along a direction parallel to the inner bottom wall 10; and / or, the second support 3 includes a plurality of second sub-supports spaced apart along a direction parallel to the inner bottom wall 10, wherein the second sub-supports correspond one-to-one with the first sub-supports 21.

[0032] In this embodiment, the first bracket 2 is defined as having a structure including multiple spaced-apart first sub-brackets 21, which helps to fully utilize the space between the multiple first sub-brackets 21. Specifically, the connectors between the multiple battery modules 8 in the battery box are placed at the intervals between the first sub-brackets 21, increasing the space inside the battery box available for placing the battery modules 8. This helps to fully utilize the space inside the box 1 to install as many battery modules 8 as possible, thereby improving the space utilization rate of the battery box and alleviating the low space utilization rate of the battery system. The beneficial effects of the second bracket 3 including multiple second sub-brackets (not shown in the figure) are similar to or the same as those of the first bracket 2, and will not be described again here.

[0033] By defining both the first bracket 2 and the second bracket 3 as structures comprising multiple sub-brackets, the space between the first sub-brackets 21 and the space between the second sub-brackets can be utilized, thus further improving the space utilization rate of the battery box. Furthermore, the specific structures of the first bracket 2 and the second bracket 3 can be selected according to the actual usage scenario. Specifically, only the first bracket 2 may include multiple spaced-apart first sub-brackets 21, while the second bracket 3 may be a single strip structure. Alternatively, only the second bracket 3 may include multiple spaced-apart second sub-brackets, while the first bracket 2 may be a single strip structure. Moreover, since the installation of the battery module 8 and the arrangement of the connectors are not affected by the first bracket 2 and the second bracket 3 adjacent to the inner bottom wall 10, both the first bracket 2 and the second bracket 3 adjacent to the inner bottom wall 10 can be defined as single strip structures. Considering the strength of the first bracket 2 and the second bracket 3, both the first bracket 2 and the second bracket 3 within the battery box can be defined as single strip structures.

[0034] In some embodiments of this application, a plurality of first supports 2 and second supports 3 are provided in a direction perpendicular to the inner bottom wall 10, and the number of first supports 2 is the same as the number of second supports 3. Each first support 2 is aligned with a second support 3.

[0035] In this embodiment of the application, a plurality of first brackets 2 and second brackets 3 are provided inside the battery box, so that a plurality of battery modules 8 can be installed inside the battery box. This helps to make full use of the space inside the battery box to install as many battery modules 8 as possible, thereby improving the low space utilization of the battery system.

[0036] In some embodiments of this application, the first sub-support 21 is aligned in a direction perpendicular to the inner bottom wall 10; and / or, the second sub-support is aligned.

[0037] In some embodiments of this application, the first bracket 2 is defined as a structure including multiple first sub-brackets 21. When multiple first brackets 2 are provided inside the housing 1, the multiple first sub-brackets 21 included in each first bracket 2 can be arranged in various ways. In this embodiment, by aligning the first sub-brackets 21 included in the multiple first brackets 2 in the direction perpendicular to the inner bottom wall 10, the space between the multiple first sub-brackets 21 is connected into a larger space, which facilitates full utilization of the space. For example, the connectors between the battery modules 8 can be arranged in this space. Therefore, the arrangement of the first sub-brackets 21 and / or second sub-brackets in the direction perpendicular to the inner bottom wall 10 provided by the embodiments of this application helps to fully utilize the space inside the battery box, thereby allowing as many battery modules 8 as possible to be installed inside the battery box, thus improving the space utilization rate of the battery system. In addition, aligning the first sub-brackets 21 included in the multiple first brackets 2 in the direction perpendicular to the inner bottom wall 10 reduces the bending and stretching of the connectors between the battery modules 8, which helps to improve the situation where the connectors are prone to loosening. The beneficial effects of the arrangement of the second sub-support included in the second support 3 are similar to or the same as those of the first sub-support 21, and will not be repeated here.

[0038] Please refer to Figure 3, which is a partial cross-sectional view of a battery box with an internal first support layer provided in some implementations of this application, wherein the first bracket and the second bracket have not yet been installed. In some embodiments of this application, the battery box further includes: a first support part 4, disposed on the first inner sidewall and connected to the first bracket 2; and / or, a second support part 5, disposed on the second inner sidewall and connected to the second bracket 3.

[0039] The first bracket 2 and the second bracket 3 are detachably mounted on the first inner sidewall and the second inner sidewall, respectively, to facilitate the installation of the battery module 8 inside the battery box. However, when the battery module 8 requires high connection strength between the first bracket 2 and the first inner sidewall, for example, when the battery module 8 is heavy, the detachable connection between the first bracket 2 and / or the second bracket 3 and the battery box body 1 may not meet the strength requirements. Therefore, in some embodiments of this application, a first support portion 4 is provided on the first inner sidewall of the battery box, and / or a second support portion 5 is provided on the second inner sidewall, so that the first support portion 4 is connected to the first bracket 2, and the second support portion 5 is connected to the second bracket 3. The first support portion 4 and / or the second support portion 5 are integrally mounted with the box body 1, which helps to improve the connection strength between the first bracket 2 and the box body 1, as well as the connection strength between the second bracket 3 and the box body 1.

[0040] Please refer to Figure 4, which is a partial cross-sectional view of a battery box with an internal first sub-support layer provided in some implementations of this application, wherein the first bracket and the second bracket have not yet been installed. In some embodiments of this application, the first support portion 4 includes a plurality of first support seats 41 spaced apart along a direction parallel to the inner bottom wall 10, the number of first support seats 41 being the same as the number of first sub-supports 21; and / or, the second support portion 5 includes a plurality of second support seats spaced apart along a direction parallel to the inner bottom wall 10, the number of second support seats being the same as the number of second sub-supports.

[0041] In this embodiment, by configuring the first support portion 4 as a structure including multiple spaced-apart first support seats 41, the internal space occupied by the first support portion 4 in the housing 1 is reduced, thereby increasing the space for mounting the battery modules 8 and connectors. This allows for the installation of as many battery modules 8 as possible within the battery box, thus improving the utilization rate of the battery box space. For example, the number of first support seats 41 is the same as the number of first sub-supports 21, which avoids situations where the first sub-supports 21 are not connected to the housing 1, thus helping to ensure the connection strength between the battery modules 8 and the housing 1. Simultaneously, it also avoids situations where empty first support seats 41 (i.e., first support seats 41 not connected to the first sub-supports 21) affect the assembly of the battery modules 8 and connectors, and avoids empty first support seats 41 occupying internal space within the housing 1, thereby improving the utilization rate of the battery box space. The beneficial effects of the second support portion 5 including multiple second support seats (not shown in the figure) are similar to or the same as those of the first support portion 4, and will not be described further here.

[0042] By defining both the first support portion 4 and the second support portion 5 as structures that include multiple support bases, it is helpful to further improve the space utilization of the battery box.

[0043] In some embodiments, the cross-sectional shape of the first support portion 4 and / or the second support portion 5 is a right trapezoid in the direction perpendicular to the inner bottom wall 10.

[0044] Referring to Figures 3 and 4, the cross-sectional shape of the first support portion 4 and the first support base 41 is a right trapezoid. The lower base of the right trapezoid contacts the first inner sidewall, the upper base is away from the first inner sidewall, and the sides of the right trapezoid, which form angles of 90° with both the upper and lower bases, are away from the inner bottom wall 10. In this embodiment, the cross-sectional shape of the first support portion 4 and the first support base 41 is a right trapezoid in the direction perpendicular to the inner bottom wall 10, which helps to increase the connection strength between the first support portion 4 and the housing 1. The specific shape and beneficial effects of the second support portion 5 and the second support base are similar to or the same as those of the first support portion 4 and the second support base, and will not be described again here.

[0045] Please refer to Figure 5, which is a partial cross-sectional view of another battery box provided by some implementations of this application, wherein the first bracket and the second bracket have not yet been installed. In some embodiments of this application, the battery box further includes: a first bottom bracket 6, disposed at the connection between the inner bottom wall 10 and the first inner side wall; and a second bottom bracket 7, disposed at the connection between the inner bottom wall 10 and the second inner side wall, and aligned with the first bottom bracket 6.

[0046] In this embodiment, since the first bottom bracket 6 and the second bottom bracket 7 are located at the bottom of the housing 1, the installation of the battery module 8 is not affected by the first bottom bracket 6 and the second bottom bracket 7. Furthermore, the first bottom bracket 6 and the second bottom bracket 7 are integrally formed with the housing 1, and there is no loosening between the first bottom bracket 6 and the second bottom bracket 7 and the housing 1. Therefore, this helps to increase the connection strength between the housing 1 and the battery module 8.

[0047] On the other hand, please refer to Figure 6, which is a partial cross-sectional view of a battery with an internal battery module provided by some implementations of this application. Embodiments of this application provide a battery including the battery box as described above, and also including a battery module 8; the two ends of the battery module 8 are respectively connected to a first bracket 2 and a second bracket 3.

[0048] In this embodiment, the battery module 8 is placed inside the housing 1, and its two ends are connected to the first bracket 2 and the second bracket 3 respectively. The first bracket 2 and the second bracket 3 are detachably mounted on the first inner sidewall and the second inner sidewall, respectively. This facilitates the installation and fixing of the battery module 8 inside the housing 1, and also helps to make full use of the space inside the housing 1 to arrange the battery module 8. Specifically, when installing each battery module 8, only the first bracket 2 and the second bracket 3 used to connect to the battery module 8 to be installed are connected to the housing 1. This reduces the impact of the remaining first brackets 2 and second brackets 3 on the installation of the current battery module 8 when all the first brackets 2 and second brackets 3 are pre-installed on the housing 1. This increases the working space for installing the battery module 8, thereby helping to make full use of the space inside the housing 1 to arrange the battery module 8, allowing as many battery modules 8 as possible to be installed in the battery box, thus improving the space utilization rate of the battery box.

[0049] Please refer to Figure 7, which is a schematic diagram of the structure of a battery module provided in some implementations of this application. In some embodiments of this application, the battery module 8 has a first surface 81, a second surface 82, a third surface, and a fourth surface that are connected end to end in sequence, and the extension surfaces of the first surface 81, the second surface 82, the third surface, and the fourth surface all intersect with the first inner sidewall and the second inner sidewall; the battery also includes a heat sink 83, which is disposed on at least one of the first surface 81, the second surface 82, the third surface, and the fourth surface.

[0050] In this embodiment, heat sinks 83 are provided on the first surface 81, the second surface 82, the third surface (not shown in the figure), and the fourth surface (not shown in the figure) of the battery module 8, which helps to dissipate heat from the battery module 8 and reduce the temperature of the battery module 8. Furthermore, providing heat sinks 83 between the battery modules 8 also helps to even out the heat between the battery modules 8, improve the situation where heat tends to accumulate between the battery modules 8, thereby improving the battery charging and discharging performance and lifespan.

[0051] Please refer to Figures 6 and 8. Figure 8 is a partial cross-sectional view of a battery internally filled with battery modules, provided by some implementations of this application. In some embodiments of this application, the battery includes multiple battery modules 8, the number of battery modules 8 corresponding to the number of first brackets 2 and second brackets 3. Each battery module 8 is connected to a first bracket 2 and a second bracket 3 at both ends. The battery also includes thermally conductive adhesive 9, which is disposed between two adjacent battery modules 8 and in contact with each of the two battery modules 8.

[0052] The battery provided in some embodiments of this application includes multiple battery modules 8. Thermally conductive adhesive 9 is disposed between the multiple battery modules 8 to help evenly distribute heat between the battery modules 8 and improve the situation where heat easily accumulates between the battery modules 8. At the same time, the thermally conductive adhesive bonds the multiple battery modules 8 into a whole, which helps to improve the overall rigidity of the battery. Furthermore, using thermally conductive adhesive to bond the multiple battery modules 8 within the battery box allows for full utilization of the space between the battery modules 8 in the depth direction of the battery box, further improving the space utilization rate of the battery box.

[0053] In some embodiments of this application, the battery further includes: a connector, which is connected to a plurality of battery modules 8 and disposed between a first sub-support 21 and / or a second sub-support of the battery box.

[0054] In this embodiment, the connectors connecting the battery modules 8 are arranged between the first sub-supports 21 and / or between the second sub-supports, which helps to make full use of the space between the first sub-supports 21 and / or the second sub-supports, thereby improving the space utilization of the battery box.

[0055] For example, in one embodiment of this application, a plurality of first brackets 2 and second brackets 3 are provided in the direction perpendicular to the inner bottom wall 10. A first support portion 4 is provided on the first inner sidewall, and the first support portion 4 includes a plurality of spaced first support seats 41. The plurality of spaced first sub-braces 21 included in the first bracket 2 are connected one by one to the first support seats 41. The second bracket 3 is detachably connected to the second inner sidewall. The second bracket 3 includes a plurality of spaced second sub-braces. The two ends of the battery module 8 are respectively connected to the first bracket 2 and the second bracket 3. The connectors between the battery modules 8 are provided in the intervals between the first sub-braces 21. The second sub-braces are parallel to the inner bottom wall 10. The size of the second sub-braces is smaller than the size of the first sub-braces 21. At the same time, the first sub-braces 21 are connected to the first support seats 41, so that the distance between the battery module 8 and the second inner sidewall is smaller, while the distance between the first inner sidewalls is larger. Therefore, providing the connectors between the battery modules 8 in the intervals between the first sub-braces 21 helps to make full use of the space between the first sub-braces 21, thereby improving the space utilization rate of the battery box.

Claims

1. A battery box, comprising: The box has an inner bottom wall, and a first inner side wall and a second inner side wall connected to and disposed opposite to the inner bottom wall; The first bracket is detachably mounted on the first inner sidewall and is parallel to the inner bottom wall; The second bracket is detachably mounted on the second inner sidewall and aligned with the first bracket; Both the first bracket and the second bracket are configured to support the battery module.

2. The battery box according to claim 1, wherein, The first support includes a plurality of first sub-supports spaced apart along a direction parallel to the inner bottom wall.

3. The battery box according to claim 1, wherein, The second support includes a plurality of second sub-supports spaced apart along a direction parallel to the inner bottom wall, and the second sub-supports correspond one-to-one with the first sub-supports.

4. The battery box according to claim 1, wherein, Both the first support and the second support are integral strip structures.

5. The battery box according to claim 1, wherein, The first support is the integral strip structure, and the second support includes a plurality of second sub-supports spaced apart along a direction parallel to the inner bottom wall; or, the first support includes a plurality of first sub-supports spaced apart along a direction parallel to the inner bottom wall, and the second support is the integral strip structure.

6. The battery box according to claim 3, wherein, In the direction perpendicular to the inner bottom wall, a plurality of first supports and second supports are provided, and the number of first supports is the same as the number of second supports.

7. The battery box according to claim 6, wherein, In the direction perpendicular to the inner bottom wall, the first sub-support is aligned; and / or, the second sub-support is aligned.

8. The battery box according to any one of claims 2 to 7, wherein the battery box further comprises: The first support portion is disposed on the first inner sidewall and connected to the first bracket; And / or, a second support portion is disposed on the second inner sidewall and connected to the second bracket.

9. The battery box according to claim 8, wherein, The first support portion and / or the second support portion are integrally formed with the housing.

10. The battery box according to claim 8, wherein, The first support portion includes a plurality of first support seats spaced apart along a direction parallel to the inner bottom wall, and the number of the first support seats is the same as the number of the first sub-supports.

11. The battery box according to claim 10, wherein, The first sub-bracket is connected to the first support base in a one-to-one correspondence.

12. The battery box according to claim 10, wherein, The second support portion includes a plurality of second support seats spaced apart along a direction parallel to the inner bottom wall, the number of the second support seats being the same as the number of the second sub-supports.

13. The battery box according to claim 12, wherein, In a direction parallel to the inner bottom wall, the size of the second sub-support is smaller than the size of the first sub-support.

14. The battery box according to any one of claims 8 to 11, wherein, In the direction perpendicular to the inner bottom wall, the cross-sectional shape of the first support portion and / or the second support portion is a right trapezoid.

15. The battery box according to claim 14, wherein, The lower base of the right trapezoid is connected to the first inner sidewall, the upper base of the right trapezoid is away from the first inner sidewall, and the waist of the right trapezoid, which forms an angle of 90° with both the upper and lower bases, is away from the inner bottom wall.

16. The battery box according to any one of claims 1 to 15, wherein the battery box further comprises: The first bottom support is disposed at the connection between the inner bottom wall and the first inner side wall; The second bottom support is disposed at the connection between the inner bottom wall and the second inner side wall, and is aligned with the first bottom support.

17. A battery comprising a battery case as described in any one of claims 1 to 16, and further comprising a battery module; The two ends of the battery module are connected to the first bracket and the second bracket, respectively.

18. The battery according to claim 17, wherein, The battery module has a first surface, a second surface, a third surface and a fourth surface connected end to end in sequence, and the extension surfaces of the first surface, the second surface, the third surface and the fourth surface intersect with the first inner sidewall and the second inner sidewall. The battery further includes a heat sink disposed on at least one of the first surface, the second surface, the third surface, and the fourth surface.

19. The battery according to claim 17 or 18, wherein the battery comprises a plurality of battery modules, the number of battery modules corresponding to the number of the first bracket and the number of the second bracket, each of the battery modules being connected to a first bracket and a second bracket at both ends, and the battery further comprises thermally conductive adhesive disposed between two adjacent battery modules and in contact with the two battery modules respectively.

20. The battery according to claim 19, further comprising: A connector, which connects to multiple battery modules, is disposed between the first sub-bracket and / or the second sub-bracket of the battery box.

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