Battery and electric equipment

Abstract

The utility model provides a battery and electric equipment. The battery comprises a first battery cell module, a second battery cell module and a cooling assembly, the first battery cell module comprises a plurality of first battery cells, the second battery cell module comprises a plurality of second battery cells, the second battery cell module is oppositely arranged on the first battery cell module, and the cooling assembly is located between the first battery cell module and the second battery cell module. The cooling assembly comprises a heat conduction part and a first cold plate and a second cold plate which are oppositely arranged, the heat conduction part is connected with the first cold plate and the second cold plate, the first cold plate is propped against the first battery cell module, and the second cold plate is propped against the second battery cell module. According to the battery disclosed by the invention, the temperature between the first battery cell module and the second battery cell module is uniform, the temperature difference between the first battery cell module and the second battery cell module is reduced, the temperature uniformity of the battery is improved, and the cycle life of the battery is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery and an electric device. BACKGROUND

[0002] The cell is a core component of the battery, which is widely used in energy storage systems, vehicles and consumer electronics.

[0003] In the related art, there is a large temperature difference between the upper cell module and the lower cell module of the battery. UTILITY MODEL CONTENT

[0004] Embodiments of the present application provide a battery and an electric device, which can improve the technical problem of a large temperature difference between the upper cell module and the lower cell module of the battery.

[0005] In a first aspect, embodiments of the present application provide a battery, comprising:

[0006] A first cell module comprising a plurality of first cells;

[0007] A second cell module comprising a plurality of second cells, the second cell module being oppositely arranged relative to the first cell module;

[0008] A cooling assembly located between the first cell module and the second cell module, the cooling assembly comprising a heat-conducting member and oppositely arranged first and second cold plates, the heat-conducting member connecting the first and second cold plates, the first cold plate abutting the first cell module, and the second cold plate abutting the second cell module.

[0009] In an embodiment, the heat-conducting member is located between the first and second cold plates, wherein:

[0010] The first cold plate coincides with the heat-conducting member in the orthographic projection of the first cell module; and / or

[0011] The second cold plate coincides with the heat-conducting member in the orthographic projection of the second cell module.

[0012] In an embodiment, the first cold plate is formed with at least two first flow channel groups, wherein:

[0013] A first accommodating space is provided between adjacent two first flow channel groups, and part of the heat-conducting member is located at the first accommodating space; and / or

[0014] The first flow channel group comprises at least two first cooling flow channels, and part of the heat-conducting member is located between adjacent two first cooling flow channels.

[0015] In an embodiment, the first cold plate is formed with at least two first flow channel groups, the second cold plate is formed with at least two second flow channel groups, and the at least two first flow channel groups and the at least two second flow channel groups are arranged in an interleaved manner, wherein,

[0016] a first accommodating space is arranged between two adjacent first flow channel groups, and part of the heat conduction members are located at the first accommodating space; and / or,

[0017] the first flow channel group comprises at least two first cooling flow channels, and part of the heat conduction members are located between two adjacent first cooling flow channels; and / or,

[0018] a second accommodating space is arranged between two adjacent second flow channel groups, and part of the heat conduction members are located at the second accommodating space; and / or,

[0019] the second flow channel group comprises at least two second cooling flow channels, and part of the heat conduction members are located between two adjacent second cooling flow channels.

[0020] In an embodiment, the battery further comprises a first heat conduction layer arranged between the first cell module and the cooling assembly, and the first heat conduction layer connects the first cell module and the first cold plate; and / or,

[0021] the battery further comprises a second heat conduction layer arranged between the second cell module and the cooling assembly, and the second heat conduction layer connects the second cell module and the second cold plate.

[0022] In an embodiment, the battery further comprises a first box body and a second box body, the first box body is formed with a first mounting cavity, the first cell module is mounted in the first mounting cavity, the second box body is formed with a second mounting cavity, and the second cell module is mounted in the second mounting cavity, wherein,

[0023] at least one inner wall surface of the first box body is formed with a third cooling flow channel, and / or at least one inner wall surface of the second box body is formed with a fourth cooling flow channel.

[0024] In an embodiment, an inner bottom wall of the first box body is formed with the third cooling flow channel, and an inner bottom wall of the second box body is formed with the fourth cooling flow channel.

[0025] In an embodiment, the battery further comprises a third heat conduction layer arranged between the inner bottom wall of the first box body and the first cell module, and the third heat conduction layer connects the inner bottom wall of the first box body and the first cell module; and / or,

[0026] The battery further comprises a fourth heat-conducting layer arranged between the inner bottom wall of the second box body and the second battery cell module, and the fourth heat-conducting layer connects the inner bottom wall of the second box body and the second battery cell module.

[0027] In an embodiment, one end of the first box body is formed with a first opening communicating with the first mounting cavity, one end of the second box body is formed with a second opening communicating with the second mounting cavity, one end of the first box body is connected with one end of the second box body, the first opening and the second opening are oppositely arranged, the first box body closes the second opening, and the second box body closes the first opening.

[0028] The battery further comprises a sealing member arranged at the connection between the first box body and the second box body.

[0029] In a second aspect, an embodiment of the present application provides a power consumption device comprising the battery described above.

[0030] The embodiment of the present application has the following beneficial effects:

[0031] In the embodiment of the present application, the cooling assembly is arranged between the first battery cell module and the second battery cell module, the first cold plate of the cooling assembly can cool and dissipate heat for the first battery cell module, the second cold plate of the cooling assembly can cool and dissipate heat for the second battery cell module, the first battery cell module and the second battery cell module are simultaneously cooled and dissipated in heat, the first battery cell module and the second battery cell module share one cooling assembly, and the structure of the battery is simplified. The heat-conducting member can conduct heat between the first cold plate and the second cold plate, the first cold plate and the second cold plate can exchange heat through the heat-conducting member, the temperature uniformity between the first battery cell module and the second battery cell module is improved, the temperature difference between the first battery cell module and the second battery cell module is reduced, the temperature uniformity of the battery is improved, and the cycle life of the battery is improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0033] Figure 1 is a structural schematic diagram of a battery provided by an embodiment of the present application;

[0034] Figure 2 is a structural exploded schematic diagram of a battery provided by an embodiment of the present application;

[0035] Figure 3is one of structural exploded schematic views of the cooling assembly provided by the embodiments of the present application;

[0036] Figure 4 is one of structural exploded schematic views of the cooling assembly provided by the embodiments of the present application;

[0037] Figure 5 is one of partial structural schematic views of the battery provided by the embodiments of the present application;

[0038] Figure 6 is one of partial structural schematic views of the battery provided by the embodiments of the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the contour of the device.

[0040] The battery and the electric equipment according to the present application will be described below. Figures 1 to 6 The battery and the electric equipment according to the present application will be described below.

[0041] According to the embodiments of the first aspect of the present application, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the battery comprises a first cell module 1, a second cell module 2 and a cooling assembly 3, the first cell module 1 comprises a plurality of first cells, the second cell module 2 comprises a plurality of second cells, the second cell module 2 is oppositely arranged to the first cell module 1, the cooling assembly 3 is located between the first cell module 1 and the second cell module 2, the cooling assembly 3 comprises a heat-conducting member 31 and oppositely arranged first and second cold plates 34 and 35, the heat-conducting member 31 connects the first and second cold plates 34 and 35, the first cold plate 34 abuts against the first cell module 1, and the second cold plate 35 abuts against the second cell module 2.

[0042] According to the battery of the embodiment of the present application, the cooling assembly 3 is arranged between the first battery cell module 1 and the second battery cell module 2, the first cold plate 34 of the cooling assembly 3 can cool and dissipate heat for the first battery cell module 1, the second cold plate 35 of the cooling assembly 3 can cool and dissipate heat for the second battery cell module 2, the first battery cell module 1 and the second battery cell module 2 are simultaneously cooled and dissipated heat, the first battery cell module 1 and the second battery cell module 2 share one cooling assembly 3, and the structure of the battery is simplified. The heat conduction member 31 can conduct heat between the first cold plate 34 and the second cold plate 35, the first cold plate 34 and the second cold plate 35 can exchange heat through the heat conduction member 31, which is beneficial to uniform the temperature between the first battery cell module 1 and the second battery cell module 2, reduce the temperature difference between the first battery cell module 1 and the second battery cell module 2, improve the temperature uniformity of the battery, and is beneficial to improve the cycle life of the battery.

[0043] It can be understood that the first cold plate 34 and the second cold plate 35 can both cool and dissipate heat for the first battery cell module 1, and at the same time, the first cold plate 34 and the second cold plate 35 can both cool and dissipate heat for the second battery cell module 2, thereby reducing the temperature difference between the first battery cell module 1 and the second battery cell module 2, improving the temperature uniformity of the battery, and being beneficial to improve the cycle life of the battery.

[0044] Exemplarily, the cooling assembly 3 can be integrally formed, or can be spliced by different components.

[0045] In some examples, the heat conduction member 31 is, for example, a heat conduction structural adhesive or a heat conduction gasket.

[0046] In some examples, the heat conduction member 31 is located between the first cold plate 34 and the second cold plate 35 to connect the first cold plate 34 and the second cold plate 35. The heat conduction member 31 can also be located on one side of the first cold plate 34 and the second cold plate 35, for example, at the side wall surface of the first cold plate 34, and the heat conduction member 31 connects the side wall surfaces of the first cold plate 34 and the second cold plate 35.

[0047] In some embodiments, the heat conduction member 31 is located between the first cold plate 34 and the second cold plate 35, and the first cold plate 34 is in the orthographic projection of the first battery cell module 1, and coincides with the orthographic projection of the heat conduction member 31 on the first battery cell module 1.

[0048] It can be understood that the first cold plate 34 is in the orthographic projection of the first battery cell module 1, and coincides with the orthographic projection of the heat conduction member 31 on the first battery cell module 1, that is, the first cold plate 34 coincides with the end surface of the first battery cell module 1 facing the first cold plate 34, which ensures the contact area of the first cold plate 34 and the first battery cell module 1, so that the first cold plate 34 can effectively cool and dissipate heat for the first battery cell module 1.

[0049] In some embodiments, the heat-conducting member 31 is located between the first cold plate 34 and the second cold plate 35, and the second cold plate 35 is in the same projection on the second battery cell module 2 as the heat-conducting member 31.

[0050] It can be understood that the second cold plate 35 is in the same projection on the second battery cell module 2 as the heat-conducting member 31, that is, the second cold plate 35 coincides with the end face of the second battery cell module 2 facing the end of the second cold plate 35, thereby ensuring the contact area of the second cold plate 35 and the second battery cell module 2, so that the second cold plate 35 can effectively cool and dissipate heat for the second battery cell module 2.

[0051] In some embodiments, as shown in FIG. 1, Figure 3 The first cold plate 34 is formed with at least two first flow channel groups 341, and a first containing space 342 is arranged between adjacent two first flow channel groups 341, and part of the heat-conducting member 31 is located at the first containing space 342.

[0052] It can be understood that the at least two first flow channel groups 341 are sequentially connected, and the heat-conducting member 31 is arranged at the first containing space 342 between adjacent two first flow channel groups 341, so that the heat-conducting member 31 can improve the temperature uniformity between adjacent two first flow channel groups 341, so that the first cold plate 34 can uniformly dissipate heat for the first battery cell module 1. At the same time, since the heat-conducting member 31 connects the first cold plate 34 and the second cold plate 35, the heat-conducting member 31 can make each first flow channel group 341 exchange heat with the second cold plate 35, thereby improving the temperature uniformity between the first cold plate 34 and the second cold plate 35, and further reducing the temperature difference between the first battery cell module 1 and the second battery cell module 2, thereby improving the temperature uniformity of the battery and being beneficial to improving the cycle life of the battery.

[0053] In some embodiments, as shown in FIG. 1, Figure 3 The first flow channel group 341 includes at least two first cooling flow channels 3411, and part of the heat-conducting member 31 is located between adjacent two first cooling flow channels 3411.

[0054] It can be understood that the at least two first cooling flow channels 3411 are sequentially communicated, and the partial heat conduction piece 31 is arranged between the adjacent two first cooling flow channels 3411, so that the heat conduction piece 31 can improve the temperature uniformity between the adjacent two first cooling flow channels 3411, so that the first cold plate 34 can uniformly cool the first battery cell module 1. At the same time, since the heat conduction piece 31 connects the first cold plate 34 and the second cold plate 35, the heat conduction piece 31 can make each first cooling flow channel 3411 can exchange heat with the second cold plate 35, improve the temperature uniformity between the first cold plate 34 and the second cold plate 35, and further reduce the temperature difference between the first battery cell module 1 and the second battery cell module 2, improve the temperature uniformity of the battery, and be beneficial to improve the cycle life of the battery.

[0055] In some embodiments, as Figure 4 , the second cold plate 35 is formed with at least two second flow channel groups 351, wherein a second containing space 352 is arranged between the adjacent two second flow channel groups 351, and the partial heat conduction piece 31 is located at the second containing space 352.

[0056] It can be understood that the at least two second flow channel groups 351 are sequentially communicated, and the partial heat conduction piece 31 is arranged at the second containing space 352 between the adjacent two second flow channel groups 351, so that the heat conduction piece 31 can improve the temperature uniformity between the adjacent two second flow channel groups 351, so that the second cold plate 35 can uniformly cool the second battery cell module 2. At the same time, since the heat conduction piece 31 connects the first cold plate 34 and the second cold plate 35, the heat conduction piece 31 can make each second flow channel group 351 can exchange heat with the first cold plate 34, improve the temperature uniformity between the first cold plate 34 and the second cold plate 35, and further reduce the temperature difference between the first battery cell module 1 and the second battery cell module 2, improve the temperature uniformity of the battery, and be beneficial to improve the cycle life of the battery.

[0057] In some embodiments, as Figure 4 , the second flow channel group 351 includes at least two second cooling flow channels 3511, and the partial heat conduction piece 31 is located between the adjacent two second cooling flow channels 3511.

[0058] It can be understood that the at least two second cooling flow channels 3511 are sequentially communicated, and the partial heat conduction member 31 is arranged between the adjacent two second cooling flow channels 3511, so that the heat conduction member 31 can improve the temperature uniformity between the adjacent two second cooling flow channels 3511, so that the second cold plate 35 can uniformly cool the second battery cell module 2. At the same time, since the heat conduction member 31 connects the first cold plate 34 and the second cold plate 35, the heat conduction member 31 can make each second cooling flow channel 3511 can exchange heat with the first cold plate 34, improve the temperature uniformity between the first cold plate 34 and the second cold plate 35, and further reduce the temperature difference between the first battery cell module 1 and the second battery cell module 2, improve the temperature uniformity of the battery, and be beneficial to improve the cycle life of the battery.

[0059] In some embodiments, the at least two first flow channel groups 341 and the at least two second flow channel groups 351 are staggered. The cooling uniformity of the cooling assembly 3 can be effectively improved, so that the cooling assembly 3 can uniformly cool the first battery cell module 1 and the second battery cell module 2, and the temperature difference between the first battery cell module 1 and the second battery cell module 2 is reduced.

[0060] In some embodiments, the battery further comprises a first heat conduction layer 4, the first heat conduction layer 4 is arranged between the first battery cell module 1 and the cooling assembly 3, and the first heat conduction layer 4 connects the first battery cell module 1 and the first cold plate 34.

[0061] It can be understood that the first heat conduction layer 4 can improve the heat transfer efficiency between the first battery cell module 1 and the cooling assembly 3, so that the cooling assembly 3 can effectively cool and dissipate heat for the first battery cell module 1.

[0062] For example, the first heat conduction layer 4 is, for example, a heat conduction structural adhesive or a heat conduction gasket.

[0063] In some embodiments, the battery further comprises a second heat conduction layer, the second heat conduction layer is arranged between the second battery cell module 2 and the cooling assembly 3, and the second heat conduction layer connects the second battery cell module 2 and the second cold plate 35.

[0064] It can be understood that the second heat conduction layer can improve the heat transfer efficiency between the second battery cell module 2 and the cooling assembly 3, so that the cooling assembly 3 can effectively cool and dissipate heat for the second battery cell module 2.

[0065] For example, the second heat conduction layer is, for example, a heat conduction structural adhesive or a heat conduction gasket.

[0066] In some embodiments, as Figure 1 , Figure 2 , Figure 5 and Figure 6The battery further comprises a first box body 5 and a second box body 6. The first box body 5 is formed with a first mounting cavity 51, and the first battery cell module 1 is mounted in the first mounting cavity 51. The second box body 6 is formed with a second mounting cavity 61, and the second battery cell module 2 is mounted in the second mounting cavity 61.

[0067] In some examples, as Figure 6 At least one inner wall surface of the first box body 5 is formed with a third cooling flow channel. It can be understood that the inner wall surface formed with the cooling flow channel is in contact with the first battery cell module 1, so that the inner wall surface can cool and dissipate heat for the first battery cell module 1, that is, at least two ends of the first battery cell module 1 have cooling structures, so that the first battery cell module 1 is simultaneously cooled and dissipated by the first cold plate 34 and the inner wall surface of the first box body 5, multi-end cooling of the first battery cell module 1 is achieved, the temperature uniformity of the first battery cell module 1 is improved, the temperature difference between different end portions of the first battery cell module 1 is reduced, and the cycle life of the first battery cell module 1 is increased.

[0068] At the same time, the third cooling flow channel is directly formed on the inner wall surface of the first box body 5, instead of adding a cooling component to the first box body 5, so that the inner wall surface of the first box body 5 is reused, and the structure of the first box body 5 is simplified. For example, a cold plate is used as a side wall or a bottom wall of the first box body 5, and the cold plate is formed with the third cooling flow channel.

[0069] For example, the inner bottom wall of the first box body 5 is formed with the third cooling flow channel. The inner bottom wall of the first box body 5 can cool and dissipate heat for the bottom of the first battery cell module 1, and the first cold plate 34 can cool and dissipate heat for the top of the first battery cell module 1, so as to reduce the temperature difference between the top and bottom of the first battery cell module 1, increase the cycle life of the first battery cell module 1, and reduce the risk of thermal runaway.

[0070] Specifically, the battery further comprises a third heat-conducting layer, which is arranged between the inner bottom wall of the first box body 5 and the first battery cell module 1, and connects the inner bottom wall of the first box body 5 and the first battery cell module 1. The third heat-conducting layer can improve the heat transfer efficiency between the inner bottom wall of the first box body 5 and the first battery cell module 1, so that the inner bottom wall of the first box body 5 can effectively cool and dissipate heat for the first battery cell module 1.

[0071] For example, the third heat-conducting layer is a heat-conducting structural adhesive or a heat-conducting gasket.

[0072] For example, the first box body 5 comprises four side walls and a cold plate as a bottom wall, the four side walls and the cold plate form the first box body 5, and an anti-expansion beam is arranged between two oppositely arranged side walls. The cold plate and the four side walls are connected by friction stir welding.

[0073] In some examples, as Figure 5The fourth cooling flow channel is formed in at least one inner wall surface of the second box body 6. It can be understood that the inner wall surface where the fourth cooling flow channel is formed is in contact with the second battery cell module 2, so that the inner wall surface of the second box body 6 can cool and dissipate heat for the second battery cell module 2, that is, at least two ends of the second battery cell module 2 have cooling structures, so that the second battery cell module 2 is simultaneously cooled and dissipated by the inner wall surface of the second box body 6 and the second cooling plate 35, multi-end cooling of the second battery cell module 2 is achieved, the temperature uniformity of the second battery cell module 2 is improved, the temperature difference between different ends of the second battery cell module 2 is reduced, and the cycle life of the second battery cell module 2 is increased.

[0074] At the same time, the fourth cooling flow channel is directly formed in the inner wall surface of the second box body 6, instead of adding a cooling component to the second box body 6, so that the inner wall surface of the second box body 6 is reused, and the structure of the second box body 6 is simplified. For example, a cold plate is used as a side wall or a bottom wall of the second box body 6, and the cold plate forms the fourth cooling flow channel.

[0075] For example, the inner bottom wall of the second box body 6 forms the fourth cooling flow channel. The inner bottom wall of the second box body 6 can cool and dissipate heat for the bottom of the second battery cell module 2, and the inner bottom wall of the second box body 6 can cool and dissipate heat for the top of the second battery cell module 2, so as to reduce the temperature difference between the top and bottom of the second battery cell module 2, increase the cycle life of the second battery cell module 2, and reduce the risk of thermal runaway.

[0076] Specifically, the battery further comprises a fourth heat-conducting layer, which is arranged between the inner bottom wall of the second box body 6 and the second battery cell module 2, and connects the inner bottom wall of the second box body 6 and the second battery cell module 2. The fourth heat-conducting layer can improve the heat transfer efficiency between the inner bottom wall of the second box body 6 and the second battery cell module 2, so that the inner bottom wall of the second box body 6 can effectively cool and dissipate heat for the second battery cell module 2.

[0077] The fourth heat-conducting layer is, for example, a heat-conducting structural adhesive or a heat-conducting gasket.

[0078] For example, the second box body 6 comprises four side walls and a cold plate as a bottom wall, the four side walls and the cold plate form the second box body 6, and anti-expansion beams are arranged between two oppositely arranged side walls. The cold plate and the four side walls are connected by friction stir welding.

[0079] In some embodiments, as shown in Figure 5 and Figure 6 One end of the first box body 5 is formed with a first opening 53 communicating with the first mounting cavity 51, one end of the second box body 6 is formed with a second opening 63 communicating with the second mounting cavity 61, one end of the first box body 5 is connected with one end of the second box body 6, and the first opening 53 and the second opening 63 are oppositely arranged.

[0080] It can be understood that the first battery cell module 1 can be installed in the first installation cavity 51 through the first opening 53, the second battery cell module 2 can be installed in the second installation cavity 61 through the second opening 63, the second box 6 is covered on the first box 5, and the first box 5 and the second box 6 are connected, so that the assembly of the battery is completed.

[0081] The second opening 63 of the second box 6 is opposite to the first opening 53 of the first box 5, and thus the first box 5 and the second box 6 do not need to be provided with a top cover, and the structure of the battery is simplified.

[0082] In some embodiments, as Figure 2 The battery further includes a sealing member 7 arranged at the connection between the first box 5 and the second box 6.

[0083] It can be understood that the sealing member 7 can improve the sealing performance of the connection between the first box 5 and the second box 6, and improve the sealing performance of the battery.

[0084] For example, the sealing member 7 is a sealing ring or sealing glue.

[0085] According to the second aspect of the present application, the electrical equipment includes the above-mentioned battery.

[0086] According to the electrical equipment of the present application, the cooling assembly 3 is arranged between the first battery cell module 1 and the second battery cell module 2, the first cold plate 34 of the cooling assembly 3 can cool and dissipate heat for the first battery cell module 1, the second cold plate 35 of the cooling assembly 3 can cool and dissipate heat for the second battery cell module 2, the first battery cell module 1 and the second battery cell module 2 are cooled and dissipated at the same time, the first battery cell module 1 and the second battery cell module 2 share one cooling assembly 3, and the structure of the battery is simplified. The heat-conducting member 31 can conduct heat between the first cold plate 34 and the second cold plate 35, the first cold plate 34 and the second cold plate 35 can exchange heat through the heat-conducting member 31, which is beneficial to uniform the temperature between the first battery cell module 1 and the second battery cell module 2, reduce the temperature difference between the first battery cell module 1 and the second battery cell module 2, improve the temperature uniformity of the battery, and improve the cycle life of the battery, and further improve the endurance of the electrical equipment.

[0087] It should be noted that the electrical equipment can be a vehicle, an aircraft, or a household appliance. It should be noted that the foregoing is only an example of the electrical equipment, and does not specially limit the electrical equipment.

[0088] The above has carried out the detailed introduction to the embodiment of the application, the principle and implementation mode of the application have been described by applying specific examples in this paper, the above embodiment explanation is only for helping understanding the method of the application and its core idea; at the same time, for the person skilled in the art, according to the idea of the application, there will be changes in specific implementation mode and application range, and the above-mentioned, the content of the specification should not be understood as the limitation of the application.

Claims

1. A battery, characterized by, The battery comprises: a first cell module comprising a plurality of first cells; a second cell module comprising a plurality of second cells, the second cell module being oppositely arranged relative to the first cell module; a cooling assembly located between the first cell module and the second cell module, the cooling assembly comprising a heat-conducting member and oppositely arranged first and second cold plates, the heat-conducting member connecting the first and second cold plates, the first cold plate abutting the first cell module, and the second cold plate abutting the second cell module.

2. The battery of claim 1, wherein, The heat-conducting member is located between the first and second cold plates, wherein a projection of the first cold plate on the first cell module coincides with a projection of the heat-conducting member on the first cell module; and / or a projection of the second cold plate on the second cell module coincides with a projection of the heat-conducting member on the second cell module.

3. The battery of claim 1, wherein, The first cold plate is formed with at least two first flow channel groups, wherein a first accommodating space is provided between adjacent two first flow channel groups, and part of the heat-conducting member is located at the first accommodating space; and / or the first flow channel group comprises at least two first cooling flow channels, and part of the heat-conducting member is located between adjacent two first cooling flow channels.

4. The battery of claim 3, wherein, The first cold plate is formed with at least two first flow channel groups, and the second cold plate is formed with at least two second flow channel groups, wherein at least two first flow channel groups and at least two second flow channel groups are staggered, wherein a first accommodating space is provided between adjacent two first flow channel groups, and part of the heat-conducting member is located at the first accommodating space; and / or the first flow channel group comprises at least two first cooling flow channels, and part of the heat-conducting member is located between adjacent two first cooling flow channels; and / or a second accommodating space is provided between adjacent two second flow channel groups, and part of the heat-conducting member is located at the second accommodating space; and / or the second flow channel group comprises at least two second cooling flow channels, and part of the heat-conducting member is located between adjacent two second cooling flow channels.

5. The battery according to any one of claims 1 to 4, characterized in that, The battery further comprises a first heat-conducting layer provided between the first cell module and the cooling assembly, the first heat-conducting layer connecting the first cell module and the first cold plate; and / or the battery further comprises a second heat-conducting layer provided between the second cell module and the cooling assembly, the second heat-conducting layer connecting the second cell module and the second cold plate.

6. The battery according to any one of claims 1 to 4, characterized in that, The battery further comprises a first box and a second box, the first box is formed with a first mounting cavity, the first cell module is mounted in the first mounting cavity, the second box is formed with a second mounting cavity, and the second cell module is mounted in the second mounting cavity, wherein at least one inner wall surface of the first box is formed with a third cooling flow channel, and / or at least one inner wall surface of the second box is formed with a fourth cooling flow channel.

7. The battery of claim 6, wherein, An inner bottom wall of the first box is formed with the third cooling flow channel, and an inner bottom wall of the second box is formed with the fourth cooling flow channel.

8. The battery of claim 7, wherein, The battery further comprises a third heat-conducting layer arranged between the inner bottom wall of the first box body and the first battery cell module, and the third heat-conducting layer connects the inner bottom wall of the first box body and the first battery cell module. and / or, The battery further comprises a fourth heat-conducting layer arranged between the inner bottom wall of the second box body and the second battery cell module, and the fourth heat-conducting layer connects the inner bottom wall of the second box body and the second battery cell module.

9. The battery of claim 6, wherein, One end of the first box body is formed with a first opening communicating with the first mounting cavity, one end of the second box body is formed with a second opening communicating with the second mounting cavity, one end of the first box body is connected with one end of the second box body, the first opening and the second opening are oppositely arranged, the first box body closes the second opening, and the second box body closes the first opening. The battery further comprises a sealing member arranged at the connection between the first box body and the second box body.

10. An electric device, characterized by The battery comprises the battery as claimed in any one of claims 1 to 9.

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