Battery module and battery pack

Abstract

The utility model relates to the technical field of batteries, and discloses a battery module and a battery pack, and the battery module comprises a battery cell assembly and a heat management assembly. A plurality of battery cell assemblies are arranged; the heat management assembly comprises a first liquid cooling plate and a second liquid cooling plate which are oppositely arranged as well as cross beams and longitudinal beams which are connected between the first liquid cooling plate and the second liquid cooling plate, the cross beams and the longitudinal beams divide the space between the first liquid cooling plate and the second liquid cooling plate into a plurality of first accommodating spaces, and the plurality of battery cell assemblies are correspondingly arranged in the first accommodating spaces respectively; and the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam are respectively connected with the battery cell assembly in a limiting manner. According to the utility model, the battery cell assembly and the thermal management assembly are integrated, so that the structure of the battery module is more compact, and the energy density of a battery pack is favorably improved; when the battery module is assembled with the battery pack shell, the whole battery module and the battery pack are directly positioned, mounted and fixed at one time, so that the positioning connection of the battery core assembly, the heat management assembly and the battery pack shell can be realized, and the assembly process is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery module and a battery pack. Background Art

[0002] The power battery pack is an important energy storage and supply system for electric vehicles. With the development of electric vehicles, the demand for high-energy-density power battery packs is increasing rapidly.

[0003] High energy density battery packs often require more efficient and lighter structural solutions.

[0004] The traditional design concept of battery pack is from cell → module → envelope → battery pack. The process is complicated, with many parts and components, and the concentration of each module is poor. It often takes up a lot of space, thus limiting the energy density of the battery pack. Utility Model Content

[0005] In view of this, the utility model provides a battery module and a battery pack to solve the problems of poor concentration of the battery pack, large occupied space, and difficulty in improving the energy density of the battery pack.

[0006] In the first aspect, the utility model provides a battery module, including a battery cell assembly and a thermal management assembly. There are multiple battery cell assemblies; the thermal management assembly includes a first liquid cooling plate and a second liquid cooling plate arranged opposite to each other, and a crossbeam and a longitudinal beam connected between the first liquid cooling plate and the second liquid cooling plate, the crossbeam and the longitudinal beam divide the first liquid cooling plate and the second liquid cooling plate into multiple first accommodating spaces, multiple battery cell assemblies are respectively arranged in the first accommodating spaces, and the first liquid cooling plate, the second liquid cooling plate, the crossbeam and the longitudinal beam are respectively connected to the battery cell assemblies in a limited manner.

[0007] Beneficial effect: In the battery module provided by the utility model, the first liquid cooling plate and the second liquid cooling plate of the thermal management component are arranged relatively, and the cross beam and the longitudinal beam connected between the first liquid cooling plate and the second liquid cooling plate divide the first liquid cooling plate and the second liquid cooling plate into a plurality of first accommodating spaces, and the plurality of battery cell components are arranged one by one in the plurality of first accommodating spaces, and the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam are respectively connected to the battery cell components in a limiting manner, so that the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam can all play a limiting role in the battery cell components, saving the time and effort of limiting the battery cell components in the traditional battery module. The first liquid cooling plate and the second liquid cooling plate not only play the role of heat exchange as components in the thermal management assembly, but also play the role of limiting the battery cell assembly as end plates for limiting the battery cell assembly, so that the thermal management assembly and the battery cell assembly are integrated into a battery module, making the structure of the battery module more compact, thereby helping to improve the energy density of the battery pack; when the integrated battery module is assembled with the battery pack shell, the entire battery module and the battery pack are directly positioned, installed and fixed at one time, so that the battery cell assembly, the thermal management assembly and the battery pack shell can be positioned and connected, saving the assembly process.

[0008] In an optional embodiment, the battery cell assembly includes a plurality of battery cells stacked and arranged in a manner of being adjacent to each other on large surfaces, and the explosion-proof valves of the plurality of battery cells face the same side.

[0009] Beneficial effect: With this arrangement, the arrangement of the battery cells is reasonable, which can facilitate the assembly of the battery cell components and the thermal management components and save space.

[0010] In an optional embodiment, a plurality of exhaust holes are provided on the cross beam and / or the longitudinal beam, and the exhaust holes connect the adjacent first accommodating spaces; the exhaust holes are provided corresponding to the explosion-proof valve of the battery cell assembly; and the cross beam and / or the longitudinal beam abut against the cover plate of the battery cell assembly.

[0011] Beneficial effects: By providing exhaust holes on the crossbeam and / or the longitudinal beam for exhaust, the cover plate of the battery cell assembly can directly abut against the crossbeam, and / or the cover plate of the battery cell assembly can directly abut against the longitudinal beam. In this way, the structure of the battery module is more compact, saving the space occupied by the battery module, which is beneficial to improving the energy density of the battery pack. Since the exhaust holes connect the adjacent first accommodating spaces, the adjacent first accommodating spaces can be heat exchanged, which is convenient for rapid heat dissipation and exhaust pressure relief. In addition, the crossbeam or the longitudinal beam can also be used to support and fix the battery module, which is equivalent to the shell reinforcement beam of the traditional battery pack.

[0012] In an optional embodiment, it also includes a second accommodating space arranged between the first liquid cooling plate and the second liquid cooling plate and separated by the cross beam and the longitudinal beam, and an electrical integrated component is arranged in the second accommodating space, and the electrical integrated component includes an electrical control system and a battery management system of the battery pack.

[0013] Beneficial effect: By using the cross beam and the longitudinal beam to separate the second accommodation space between the first liquid cooling plate and the second liquid cooling plate, the second accommodation space can be used to assemble the electrical integration component. In addition, the electrical integration component integrates the electrical control system and the battery management system of the battery pack, further improving the integration degree and compactness of the components in the battery module, further reducing the occupied space of the battery module, and helping to further improve the energy density of the battery pack.

[0014] In an optional embodiment, the second accommodation space is disposed close to an edge on either side of the thermal management component.

[0015] Beneficial effect: This arrangement makes the first accommodation space more concentrated, facilitates the conductive connection between the battery cell components, and makes the battery cell module structure more concentrated and compact.

[0016] In an optional embodiment, the second accommodating space is adjacent to the first accommodating space, and the second accommodating space and the first accommodating space at least share a transverse beam or a longitudinal beam.

[0017] Beneficial effect: With this arrangement, the second accommodating space and the first accommodating space can share the cross beam and the longitudinal beam, thereby reducing the number of cross beams and longitudinal beams and reducing the weight of the battery module.

[0018] In an optional embodiment, the cross beam and / or the longitudinal beam are provided with fixing ears, and the fixing ears are provided with mounting holes suitable for being connected to the shell of the battery pack through fasteners.

[0019] Beneficial effects: This arrangement makes it easy to fasten the battery module to the battery pack shell through the fixing ears and fasteners. Since the battery cell assembly and the thermal management assembly are integrated into one, during assembly, it is only necessary to position and fix the fixing ears on the thermal management assembly and the battery pack shell, which is convenient and quick, saving the assembly time of the battery pack and improving the production efficiency of the battery pack.

[0020] In a second aspect, the utility model further provides a battery pack, comprising a shell and a battery module according to any one of the above technical solutions, wherein the battery module is arranged in the shell.

[0021] Beneficial effect: Since the battery pack includes a battery module, it has the same effect as the battery module and will not be described in detail here.

[0022] In an optional implementation, the explosion-proof valves of each battery cell assembly are arranged toward the same side.

[0023] Beneficial effect: Such arrangement is neat and orderly, which facilitates the conductive connection between the battery cell components.

[0024] In an optional embodiment, the shell includes a first shell and a second shell that cooperate with each other, the first liquid cooling plate of the battery module is connected to the first shell, and the second liquid cooling plate of the battery module is connected to the second shell.

[0025] Beneficial effect: Since the battery module integrates the battery cell assembly and the thermal management assembly, when assembling the battery module and the battery pack shell, the first liquid cooling plate and the first shell are directly connected, and the second liquid cooling plate and the second shell are connected to complete the assembly of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the structure of a battery module according to an embodiment of the utility model;

[0028] Figure 2 for Figure 1 A front view of the battery module shown;

[0029] Figure 3 for Figure 1 A top view of the battery module shown;

[0030] Figure 4 For along Figure 3 Sectional view at AA in the middle;

[0031] Figure 5 for Figure 1 A schematic diagram of the structure of the thermal management component in the battery module shown;

[0032] Figure 6 for Figure 1 A schematic diagram of the structure of the battery module and the first shell of the battery pack after being assembled;

[0033] Figure 7 To include Figure 1 Schematic diagram of the exploded structure of the battery pack of the battery module shown.

[0034] Description of reference numerals:

[0035] 10. Battery module; 1. Battery cell assembly; 11. Battery cell; 2. Thermal management assembly; 21. First liquid cooling plate; 22. Second liquid cooling plate; 23. Cross beam; 24. Longitudinal beam; 25. First storage space; 26. Exhaust hole; 27. Second storage space; 20. Battery pack; 201. First shell; 202. Second shell. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] Combine the following Figures 1 to 7 , describing an embodiment of the utility model.

[0038] According to an embodiment of the utility model, on the one hand, a battery module 10 is provided, including a battery cell assembly 1 and a thermal management assembly 2. The battery cell assembly 1 is provided with a plurality of; the thermal management assembly 2 includes a first liquid cooling plate 21 and a second liquid cooling plate 22 arranged opposite to each other, and a cross beam 23 and a longitudinal beam 24 connected between the first liquid cooling plate 21 and the second liquid cooling plate 22, the cross beam 23 and the longitudinal beam 24 divide the first liquid cooling plate 21 and the second liquid cooling plate 22 into a plurality of first accommodating spaces 25, and a plurality of battery cell assemblies 1 are respectively provided in the first accommodating spaces 25, and the first liquid cooling plate 21, the second liquid cooling plate 22, the cross beam 23 and the longitudinal beam 24 are respectively connected to the battery cell assembly 1 in a limited position.

[0039] In the battery module 10 provided by the utility model, since the first liquid cooling plate 21 and the second liquid cooling plate 22 of the thermal management component 2 are arranged relatively, the cross beam 23 and the longitudinal beam 24 connected between the first liquid cooling plate 21 and the second liquid cooling plate 22 divide the first liquid cooling plate 21 and the second liquid cooling plate 22 into a plurality of first accommodating spaces 25, and the plurality of battery cell components 1 are arranged one by one in the plurality of first accommodating spaces 25, and the first liquid cooling plate 21, the second liquid cooling plate 22, the cross beam 23 and the longitudinal beam 24 are respectively connected to the battery cell components 1 in a limiting manner, so that the first liquid cooling plate 21, the second liquid cooling plate 22, the cross beam 23 and the longitudinal beam 24 can all play a limiting role on the battery cell components 1, saving the traditional battery module 10 for the battery cell components 1 The limiting end plates save the number of parts. The first liquid cooling plate 21 and the second liquid cooling plate 22 not only play a role in heat exchange as components in the thermal management component 2, but also serve as end plates for limiting the battery cell assembly 1 to limit the battery cell assembly 1, so that the thermal management component 2 and the battery cell assembly 1 are integrated into the battery module 10, making the structure of the battery module 10 more compact, and thus, it is beneficial to improve the energy density of the battery pack 20; when the integrated battery module 10 is assembled with the battery pack 20 shell, the entire battery module 10 and the battery pack 20 are directly positioned, installed and fixed once, so that the battery cell assembly 1, the thermal management component 2 and the battery pack 20 shell can be positioned and connected, saving the assembly process.

[0040] In one embodiment, the battery cell assembly 1 includes a plurality of battery cells 11 stacked and arranged in a manner of being adjacent to each other on a large surface, and the explosion-proof valves of the plurality of battery cells 11 face the same side.

[0041] The battery cell assembly 1 is formed by stacking and arranging the battery cells 11 with their large surfaces adjacent to each other and the explosion-proof valves facing the same side. In this way, the arrangement of the battery cells 11 is reasonable, which can facilitate the assembly of the battery cell assembly 1 and the thermal management assembly 2 and save space.

[0042] In one embodiment, a plurality of exhaust holes 26 are provided on the cross beam 23 and / or the longitudinal beam 24, and the exhaust holes 26 connect the adjacent first accommodating spaces 25; the exhaust holes 26 are arranged corresponding to the explosion-proof valve of the battery cell assembly 1; and the cross beam 23 and / or the longitudinal beam 24 are in contact with the cover plate of the battery cell assembly 1.

[0043] By setting a number of exhaust holes 26 on the crossbeam 23 and / or the longitudinal beam 24, and the exhaust holes 26 and the explosion-proof valve position of the battery cell assembly 1 are set correspondingly, so that the exhaust of the explosion-proof valve can be facilitated. In the traditional battery module 10, in order to facilitate the exhaust of the explosion-proof valve, a certain gap is maintained between the cover plate of the battery cell assembly 1 with the explosion-proof valve and the crossbeam 23 or the longitudinal beam 24, and the gap constitutes an exhaust channel. In such a scheme, the structure of the battery module 10 is not compact enough and occupies a large space. In the present application, the exhaust holes 26 are set on the crossbeam 23 and / or the longitudinal beam 24 for exhaust. The cover plate of the battery cell assembly 1 can directly abut against the crossbeam 23, and / or the cover plate of the battery cell assembly 1 can directly abut against the longitudinal beam 24. In this way, the structure of the battery module 10 is more compact, the space occupied by the battery module 10 is saved, and it is beneficial to improve the energy density of the battery pack 20. Since the exhaust holes 26 connect the adjacent first accommodating spaces 25, the adjacent first accommodating spaces 25 can be heat exchanged, which is convenient for rapid heat dissipation and exhaust pressure relief.

[0044] In addition, the cross beam 23 or the longitudinal beam 24 can also be used to support and fix the battery module 10, which is equivalent to the shell reinforcement beam of a traditional battery pack.

[0045] In one embodiment, it also includes a second accommodating space 27 disposed between the first liquid cooling plate 21 and the second liquid cooling plate 22 and separated by the cross beam 23 and the longitudinal beam 24. An electrical integrated component is disposed in the second accommodating space 27. The electrical integrated component includes an electrical control system and a battery management system of the battery pack 20.

[0046] The second accommodation space 27 is separated between the first liquid cooling plate 21 and the second liquid cooling plate 22 by the cross beam 23 and the longitudinal beam 24, and the second accommodation space 27 can be used to assemble the electrical integration component. In addition, the electrical integration component integrates the electrical control system and the battery management system of the battery pack 20, further improving the integration degree and compactness of the components in the battery module 10, further reducing the occupied space of the battery module 10, and facilitating further improving the energy density of the battery pack 20.

[0047] Specifically, the electrical integrated assembly includes several parts of the electrical control system and battery management system of the traditional battery pack. The electrical control system and the battery management system are designed in an integrated manner, that is, the circuit and control of the battery pack 20 are integrated, which avoids the disadvantage of low space utilization caused by the fragmented layout when the electrical control system and the battery management system are designed separately. According to different battery pack 20 requirements, through the flexibility of the battery cell assembly 1 and the integrated design of the electrical integrated assembly, the space utilization of the battery pack 20 can be effectively improved.

[0048] Of course, the stacking and grouping of the battery cells 11 and the arrangement of the battery cell assembly 1 and the electrical integrated assembly can be flexibly adjusted according to different requirements of the battery pack 20 .

[0049] In one embodiment, the second accommodation space 27 is disposed close to an edge of any side of the thermal management component 2 .

[0050] The second accommodation space 27 is arranged at the edge of either side close to the thermal management component 2, so that the first accommodation space 25 is more concentrated, which facilitates the conductive connection between the battery cell components 1, makes the module structure of the battery cell 11 more concentrated and compact, and facilitates the assembly of the electrical integrated components.

[0051] In one embodiment, the second accommodating space 27 is adjacent to the first accommodating space 25 , and the second accommodating space 27 and the first accommodating space 25 at least share a cross beam 23 or a longitudinal beam 24 .

[0052] Since the second accommodating space 27 and the first accommodating space 25 are adjacently arranged and separated by the cross beam 23 and / or the longitudinal beam 24, the second accommodating space 27 and the first accommodating space 25 can share the cross beam 23 and the longitudinal beam 24, thereby reducing the number of the cross beams 23 and the longitudinal beams 24 and reducing the weight of the battery module 10.

[0053] In one embodiment, the cross beam 23 and / or the longitudinal beam 24 are both provided with fixing ears, and the fixing ears are provided with mounting holes suitable for being connected to the shell of the battery pack 20 through fasteners.

[0054] This arrangement makes it easy to fasten the battery module 10 to the shell of the battery pack 20 through the fixing ears and fasteners. In the prior art, the battery cell assembly 1 and the thermal management assembly 2 are two independent components that need to be positioned and connected to the shell of the battery pack 20 respectively, and there are many assembly steps and it takes a long time. The battery module 10 provided in this embodiment integrates the battery cell assembly 1 and the thermal management assembly 2 into one. During assembly, it is only necessary to position and fix the fixing ears on the thermal management assembly 2 and the shell of the battery pack 20, which is convenient and quick, saves the assembly time of the battery pack 20, and improves the production efficiency of the battery pack 20.

[0055] In one embodiment, during the assembly process between the battery cell assembly 1 and the thermal management assembly 2, a plurality of battery cells 11 are stacked and arranged in a manner of being adjacent to each other on large surfaces to form a battery cell assembly 1, and then the battery cell assembly 1 is fixed to the first liquid cooling plate 21 by gluing, and then the cross beam 23, the longitudinal beam 24 and the first liquid cooling plate 21 are connected, and finally the second liquid cooling plate 22 and the cross beam 23, the longitudinal beam 24 and the battery cell assembly 1 are connected. Of course, the cross beam 23, the longitudinal beam 24 and the first liquid cooling plate 21 can also be connected first, and then the battery cell assembly 1 can be glued in each first accommodating space 25.

[0056] Specifically, different numbers of battery cells 11 and different numbers of battery cell assemblies 1 are provided according to different requirements of the battery pack 20. The distribution of the first accommodation space 25 is not limited. The battery cell 11 arrangement scheme provided in this embodiment can make the battery cell 11 arrangement more flexible, and the selection of other module integration methods is more diversified.

[0057] Specifically, n battery cell assemblies 1 are provided, and each battery cell assembly 1 includes m battery cells 11. In one embodiment, m=29, and n=4.

[0058] In one embodiment, welding can be used to achieve fixed connection between the cross beam 23 and the first liquid cooling plate 21 , between the cross beam 23 and the second liquid cooling plate 22 , between the longitudinal beam 24 and the first liquid cooling plate 21 , and between the longitudinal beam 24 and the second liquid cooling plate 22 .

[0059] The battery module 10 provided in this embodiment greatly improves the process feasibility of the battery pack 20, and the housing assembly of the battery module 10 and the battery pack 20 is simpler.

[0060] According to an embodiment of the present invention, on the other hand, a battery pack 20 is provided, comprising a housing and a battery module 10 according to any one of the above technical solutions, wherein the battery module 10 is disposed in the housing.

[0061] Beneficial effect: Because the battery pack 20 includes the battery module 10, the first liquid cooling plate 21, the second liquid cooling plate 22, the cross beam 23 and the longitudinal beam 24 of the battery module 10 can limit the battery cell assembly 1, thereby saving the end plate for limiting the battery cell assembly 1 in the traditional battery module 10 and saving the number of parts. The first liquid cooling plate 21 and the second liquid cooling plate 22 play a role in heat exchange as components in the thermal management component 2 and also play a role in limiting the battery cell assembly 1 as end plates for limiting the battery cell assembly 1, so that the thermal management component 2 and the battery cell assembly 1 are integrated into the battery module 10, making the structure of the battery module 10 more compact, thereby helping to improve the energy density of the battery pack 20; when the integrated battery module 10 is assembled with the battery pack 20 shell, the entire battery module 10 and the battery pack 20 are directly positioned, installed and fixed once, so that the battery cell assembly 1, the thermal management component 2 and the battery pack 20 shell can be positioned and connected, saving the assembly process.

[0062] In one embodiment, the explosion-proof valves of each battery cell assembly 1 are arranged toward the same side.

[0063] The explosion-proof valves of the various battery cell assemblies 1 are arranged toward the same side, so that the arrangement is neat and orderly, which facilitates the conductive connection between the various battery cell assemblies 1.

[0064] In one embodiment, the shell includes a first shell 201 and a second shell 202 that cooperate with each other, the first liquid cooling plate 21 of the battery module 10 is connected to the first shell 201 , and the second liquid cooling plate 22 of the battery module 10 is connected to the second shell 202 .

[0065] Since the battery module 10 integrates the battery cell assembly 1 and the thermal management assembly 2, when assembling the battery module 10 and the battery pack 20 shell, the first liquid cooling plate 21 and the first shell 201 are directly connected, and the second liquid cooling plate 22 and the second shell 202 are connected to complete the assembly of the battery pack 20. Specifically, the connection between the first liquid cooling plate 21 and the first shell 201 includes gluing.

[0066] Furthermore, the first housing 201 and the second housing 202 are sealed and connected via a sealing structure. Specifically, the sealing structure includes a sealing strip.

[0067] The battery pack 20 provided in this embodiment has a higher degree of integration, high space utilization, and is more friendly to the assembly process.

[0068] Since the battery module 10 improved in this embodiment has a higher integration level and saves space, the second shell 202 of the battery pack 20 has a larger installation space, so that the second shell 202 can be adapted to different modes, including CTP, LCTP, CTC and other mode expansion adaptation structures.

[0069] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A battery module, It is characterized in that include: A battery cell assembly, wherein the battery cell assembly is provided in plurality; A thermal management component includes a first liquid cooling plate and a second liquid cooling plate arranged opposite to each other, and a cross beam and a longitudinal beam connected between the first liquid cooling plate and the second liquid cooling plate, wherein the cross beam and the longitudinal beam divide the first liquid cooling plate and the second liquid cooling plate into a plurality of first accommodating spaces, and a plurality of battery cell assemblies are respectively arranged in the first accommodating spaces, and the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam are respectively connected to the battery cell assemblies in a limiting manner.

2. The battery module according to claim 1, It is characterized in that The battery cell assembly includes a plurality of battery cells stacked and arranged in a manner of being adjacent to each other on a large surface, and explosion-proof valves of the plurality of battery cells face the same side.

3. The battery module according to claim 1 or 2, It is characterized in that The cross beam and / or the longitudinal beam are provided with a plurality of exhaust holes, and the exhaust holes connect the adjacent first accommodating spaces; the exhaust holes are arranged corresponding to the explosion-proof valve of the battery cell assembly; the cross beam and / or the longitudinal beam are in contact with the cover plate of the battery cell assembly.

4. The battery module according to claim 1 or 2, It is characterized in that It also includes a second accommodating space disposed between the first liquid cooling plate and the second liquid cooling plate and separated by the cross beam and the longitudinal beam, wherein the second accommodating space is provided with an electrical integrated component, wherein the electrical integrated component includes an electrical control system and a battery management system of the battery pack.

5. The battery module according to claim 4, It is characterized in that The second accommodation space is disposed close to an edge of either side of the thermal management component.

6. The battery module according to claim 4, It is characterized in that The second accommodating space is adjacent to the first accommodating space, and the second accommodating space and the first accommodating space at least share the cross beam or the longitudinal beam.

7. The battery module according to claim 1 or 2, It is characterized in that The cross beam and / or the longitudinal beam are both provided with fixing ears, and the fixing ears are provided with mounting holes suitable for being connected to the shell of the battery pack through fasteners.

8. A battery pack, It is characterized in that include: case; The battery module according to any one of claims 1 to 7, wherein the battery module is disposed in the housing.

9. The battery pack according to claim 8, It is characterized in that The explosion-proof valves of the battery core assemblies are arranged toward the same side.

10. The battery pack according to claim 9, It is characterized in that The shell includes a first shell and a second shell that match each other. The first liquid cooling plate of the battery module is connected to the first shell, and the second liquid cooling plate of the battery module is connected to the second shell.

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