Battery module, battery pack and vehicle

Abstract

The application provides a battery module, a battery pack and a vehicle, wherein the battery module comprises a battery and a cooling assembly, the battery comprises a plurality of battery monomers and an electrical connector, the battery monomer comprises a battery shell and at least two polar posts which are arranged at one side of the battery shell, and the electrical connector is connected to the polar posts of each battery monomer; the cooling assembly comprises a cooling plate, the cooling plate is located between two adjacent polar posts of at least one battery monomer, and is limited by at least one electrical connector corresponding to the battery monomer. The battery module of the application can prevent the short circuit of the electrical connector and increase the heat exchange area between the cooling plate and the battery monomer.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a battery module, battery pack and vehicle. Background Technology

[0002] Battery packs for power batteries typically use cooling plates to cool the top of the cells where the terminals are located. In related technologies, the cooling plate overlaps two adjacent cells at both ends along its width and is fixed by electrical connectors between the two adjacent cells. To ensure a secure fit, the distance between the two corresponding electrical connectors is relatively short, which can easily lead to short circuits. At the same time, the heat exchange area between the cooling plate and a single cell is small, resulting in poor heat exchange performance. Utility Model Content

[0003] In view of this, the embodiments of this application aim to provide a battery module, battery pack and vehicle that can both prevent short circuits in electrical connectors and increase the heat exchange area between the cooling plate and the individual battery cells.

[0004] To achieve the above objectives, one embodiment of this application provides a battery module, including: A battery, the battery comprising a plurality of individual cells and electrical connectors, each individual cell comprising a cell housing and at least two terminals spaced apart on one side of the cell housing, the electrical connectors connecting the terminals of each individual cell; A cooling assembly, comprising a cooling plate located between two adjacent terminals of at least one of the battery cells and limited by at least one electrical connector corresponding to the battery cell.

[0005] In some embodiments, a portion of the cooling plate is located between the electrical connector and the cell housing.

[0006] In some embodiments, the electrical connector and the cell housing together press the cooling plate at the portion located between the electrical connector and the cell housing.

[0007] In some embodiments, the electrode post is located on one side of the cell housing along a first direction and is spaced apart along a second direction perpendicular to the first direction, and the portion of the cooling plate located between the electrical connector and the cell housing has a dimension of not less than 3 mm along the second direction.

[0008] In some embodiments, the electrode post is located on one side of the cell housing along a first direction and spaced apart along a second direction. A plurality of cell units are arranged along at least a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The cooling plate extends along the third direction so that each cell unit arranged along the third direction shares the same cooling plate.

[0009] In some embodiments, multiple battery cells are arranged in multiple rows along the third direction and in multiple columns along the second direction; there are multiple cooling plates, and each battery cell in the same column shares the same cooling plate.

[0010] In some embodiments, the first cooling assembly includes a first collector and a second collector, which are respectively disposed at opposite ends of the plurality of cooling plates and are in fluid communication with each of the cooling plates.

[0011] In some embodiments, the individual battery cell includes an explosion-proof valve disposed in the battery cell housing; The explosion-proof valve is located between two adjacent poles, and the cooling plate has a clearance opening that avoids the explosion-proof valve; or... The explosion-proof valve and the pole are located on opposite sides of the battery cell housing.

[0012] In some embodiments, the battery module further includes a heat-conducting component; the heat-conducting component is sandwiched between the cooling plate and the cell housing; and / or, the heat-conducting component is sandwiched between the cooling plate and the electrical connector.

[0013] One embodiment of this application provides a battery module, including: A battery, comprising a plurality of individual cells and electrical connectors, wherein each individual cell includes a cell housing and at least two terminals, the terminals being located on one side of the cell housing along a first direction and spaced apart along a second direction perpendicular to the first direction, the plurality of individual cells being arranged along at least a third direction, the first direction, the second direction, and the third direction being perpendicular to each other, and the electrical connectors connecting the terminals of each individual cell; A cooling assembly, comprising a cooling plate located between the terminals of two adjacent battery cells, such that two adjacent battery cells arranged along the third direction share the same cooling plate.

[0014] In some embodiments, multiple battery cells are arranged in multiple rows along the third direction and in multiple columns along the second direction; there are multiple cooling plates, and each battery cell in the same row shares the same cooling plate.

[0015] In some embodiments, the battery cell includes an explosion-proof valve disposed on one side of the battery cell housing along a first direction, and the cooling plate avoids the explosion-proof valve.

[0016] One embodiment of this application provides a battery module, characterized in that it includes: A battery comprising a plurality of individual cells and electrical connectors, wherein each individual cell includes a cell housing and at least two terminals, the terminals being located on one side of the cell housing along a first direction and spaced apart along a second direction perpendicular to the first direction, the plurality of individual cells being arranged along at least a third direction, the first direction, the second direction, and the third direction being perpendicular to each other, and the electrical connectors connecting the terminals of two adjacent individual cells along the third direction to connect the individual cells in series; A cooling assembly, the cooling assembly including a cooling plate located between the terminals of two adjacent battery cells along the third direction, and limited at least by the electrical connectors connecting the two adjacent battery cells.

[0017] One embodiment of this application provides a battery pack, including the battery module described above.

[0018] One embodiment of this application provides a vehicle including the battery module or battery pack described above.

[0019] This application provides a battery module, battery pack, and vehicle. The battery module of this application, by placing a cooling plate between two adjacent terminals of at least one battery cell, increases the heat exchange area between the cooling plate and the cell casing of a single battery cell, compared to related technologies where the cooling plate overlaps the two ends of the cooling plate along its width. This improves the heat exchange effect of the cooling plate. Furthermore, for multiple battery cells, the cooling plate is simultaneously located between two terminals of at least some of the battery cells, providing better installation stability along its length. This eliminates the need to increase the overlap width between the electrical connectors and the cooling plate, thus preventing short circuits caused by excessively close proximity of the electrical connectors. Therefore, this application not only prevents short circuits of the electrical connectors but also increases the heat exchange area between the cooling plate and the battery cell. Attached Figure Description

[0020] Figure 1 This is an exploded view of a battery module according to an embodiment of this application; Figure 2 for Figure 1 The diagram shows the structure of the battery module. Figure 3 for Figure 2 A partial sectional view at point AA in the middle; Figure 4 for Figure 3 A magnified view of a portion of the battery module shown. Figure 5 This is an exploded view of another battery module according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 10. Battery; 11. Cell; 111. Cell casing; 112. Terminal; 113. Explosion-proof valve; 12. Electrical connector; 20. Cooling assembly; 21. Cooling plate; 22. First current collector; 23. Second current collector. Detailed Implementation

[0022] In the description of the embodiments of this application, it should be noted that the terms "first direction," "second direction," and "third direction" are based on the appended... Figure 1 and attached Figure 2 The orientation or positional relationship shown is merely for the convenience of describing the embodiments of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0023] This application provides a battery module; please refer to [link / reference]. Figures 1 to 4 The battery module includes a battery 10 and a cooling assembly 20.

[0024] The battery 10 includes a plurality of individual cells 11 and electrical connectors 12. Each individual cell 11 includes a cell housing 111 and at least two terminals 112 spaced apart on one side of the cell housing 111. The electrical connectors 12 connect the terminals 112 of each individual cell 11.

[0025] The single cell 11 is the basic unit of the battery 10, used to store and release electrical energy, including but not limited to lithium-ion battery 10, sodium-ion battery 10, sodium-lithium-ion battery 10, lithium metal battery 10, sodium metal battery 10, lithium-sulfur battery 10, magnesium-ion battery 10, nickel-metal hydride battery 10, nickel-cadmium battery 10, lead-acid battery 10, etc.

[0026] The cell casing 111 refers to the rigid or flexible outer shell that encloses the core system inside the cell (positive electrode, negative electrode, separator, electrolyte, etc.). Its main function is to protect the internal active materials, prevent electrolyte leakage, and isolate the external environment (such as water vapor and dust).

[0027] The terminal 112 is a conductive intermediate between the internal electrodes (positive and negative electrodes) of the battery cell 11 and the electrical connector 12. It is used to output the current generated inside the battery cell housing 111 to the outside, or to introduce external current into the battery cell housing 111 during charging. It is understood that the terminal 112 includes at least one positive terminal and one negative terminal.

[0028] Electrical connector 12 is used to electrically connect with the terminal 112 of the individual cell 11 to form a stable circuit structure, which concentrates the current output of multiple individual cells 11, or distributes external current to each individual cell 11 during charging. For example, multiple individual cells 11 can be connected in series and / or in parallel through electrical connector 12 to form a battery 10 with higher voltage or larger capacity.

[0029] Electrical connectors 12 include, but are not limited to, busbars, conductive connecting pieces, and wire harnesses.

[0030] Figures 1 to 4 The battery cell 11 has a positive terminal and a negative terminal, and the positive terminal and the negative terminal each correspond to a busbar. That is to say, a battery cell 11 is electrically connected to two other battery cells through at least two busbars.

[0031] Please continue reading. Figures 1 to 4 The cooling assembly 20 includes a cooling plate 21, which is located between two adjacent terminals 112 of at least one of the battery cells 11 and is limited by at least one electrical connector 12 corresponding to the battery cell 11.

[0032] When the battery 10 is working, it generates a lot of heat. The accumulation of heat will cause the performance of the battery 10 cells to deteriorate. The cooling plate 21 can absorb the heat generated by the battery 10 through heat conduction and / or heat convection, so that the temperature of the battery 10 is maintained within the optimal operating range, thereby avoiding overheating that could lead to thermal runaway, capacity decay or power reduction.

[0033] When the ambient temperature is low (e.g., 0°C), the cooling plate 21 can also heat the battery 10, raising the temperature of the individual cells 11 and ensuring that the battery 10 still has good charge and discharge performance in low-temperature environments. In other words, the cooling plate 21 can not only absorb heat from the battery 10, but also release heat from the battery 10.

[0034] Figure 1 The battery cell 11 has two terminals 112, and the two terminals 112 correspond to different electrical connectors 12. That is, the battery cell 11 is connected to other battery cells 11 through at least two electrical connectors 12, and the two electrical connectors 12 are spaced apart on one side of the battery cell housing 111.

[0035] The spacing between two adjacent pole posts 112 is not limited; for example, please refer to [link to relevant documentation]. Figure 4 The spacing D between two adjacent poles 112 is 10mm-500mm (including the endpoint value). Correspondingly, the width d of the cooling plate 21 (i.e., Figure 1 The dimension along the second direction is 8mm-498mm. Thus, while having a certain assembly gap between the cooling plate 21 and the two pole pieces 112, the width dimension d of the cooling plate 21 can be increased as much as possible, thereby increasing the heat exchange area between the cooling plate 21 and the cell housing 111.

[0036] The cooling plate 21 is located between two adjacent terminals 112 of at least one of the battery cells 11. This means the cooling plate can exchange heat with only one battery cell 11, or it can exchange heat with multiple battery cells 11 simultaneously. When the cooling plate 21 exchanges heat with multiple battery cells 11, it can be located between two terminals 112 of multiple battery cells 11 at the same time. It is understood that other battery cells 11 that do not exchange heat with the cooling plate 21 can exchange heat through other cooling structures.

[0037] In a single battery cell 11, the cooling plate 21 is located between the two terminals 112 of the battery cell 11 and can be limited by at least one electrical connector 12 on the battery cell 11. That is, the electrical connector 12 can limit the cooling plate 21, so that the cooling plate 21 has good installation stability. For multiple battery cells 11, the electrical connectors 12 corresponding to multiple battery cells 11 can all limit the cooling plate 21, or only a portion of the battery cells 11 can have their electrical connectors 12 limiting the cooling plate 21.

[0038] The method by which the electrical connector 12 limits the cooling plate 21 is not limited. For example, the electrical connector 12 can overlap with the cooling plate 21 to constrain the cooling plate 21 between the electrical connector 12 and the battery cell housing 111. That is, the electrical connector 12 and the battery cell housing 111 can restrict the displacement of the cooling plate 21 in the first direction, thereby further improving the installation stability of the cooling plate 21. In other embodiments, the electrical connector 12 can also limit the cooling plate 21 by means of bonding or other methods.

[0039] To prevent the formation of a conductive path between the cooling plate 21 and the pole post 112 and / or the electrical connector 12, which could lead to a short circuit, it is preferable that the cooling plate 21 be made of insulating materials such as plastic, or that the surface of the cooling plate 21 be insulated, including but not limited to dip coating, powder coating, electrophoresis, and heat shrink tubing.

[0040] This application also provides another battery module, please refer to... Figure 5The battery module includes a battery 10 and a cooling assembly 20.

[0041] The battery 10 includes a plurality of individual cells 11 and electrical connectors 12. Each individual cell 11 includes a cell housing 111 and at least two terminals 112. The terminals 112 are located on one side of the cell housing 111 along a first direction and are spaced apart along a second direction perpendicular to the first direction. The plurality of individual cells 11 are arranged at least along a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other. The electrical connectors 12 connect the terminals 112 of adjacent individual cells 11 along the third direction, so that the individual cells 11 are connected in series. The cooling assembly 20 includes a cooling plate 21, which is located between the terminals 112 of two adjacent individual cells 11 along the third direction and is limited at least by the electrical connectors 12 connecting the two adjacent individual cells 11.

[0042] In other words, the extension direction of the cooling plate 21 is the same as the arrangement direction of the pole post 112.

[0043] On the projection plane perpendicular to the first direction, the projection of the cooling plate 21 coincides with the projection of the two adjacent battery cells 11 along the third direction. The cooling plate 21 can exchange heat with the two adjacent battery cells 11 along the third direction at the same time to ensure heat exchange.

[0044] Please see Figure 5 In the third direction, each terminal 112 of the battery cell 11 is spaced apart from the terminal 112 of the adjacent battery cell 11. The cooling plate 21 is located between these gaps. When the electrical connector 12 connects the terminal 112 of two adjacent battery cells 11, at least part of its structure covers the cooling plate 21. That is, at least one electrical connector 12 crosses the cooling plate 21 to connect the two terminal 112. In other words, the cooling plate 21 can be stably installed without increasing the size of the electrical connector 12 overlapping the cooling plate 21. Thus, it can prevent short circuits caused by two adjacent electrical connectors 21 being too close.

[0045] This application also provides a battery pack, which includes the battery module provided in any embodiment of this application.

[0046] This application also provides a vehicle that includes the battery pack provided in any embodiment of this application.

[0047] The battery module of this application embodiment places the cooling plate 21 between two adjacent terminals 112 of at least one of the battery cells 11. Compared with the related technology where the two ends of the cooling plate 21 are respectively overlapped on two adjacent battery cells 11 along the width direction, the battery module of this application embodiment can increase the heat exchange area between the cooling plate 21 and the cell shell 111 of a single battery cell 11, thereby improving the heat exchange effect of the cooling plate 21. At the same time, for multiple battery cells 11, the cooling plate 21 is located between two terminals 112 of at least some of the battery cells 11, which has good installation stability in the length direction. It does not require increasing the overlap width between the electrical connector 12 and the cooling plate 21, thereby preventing short circuits caused by the electrical connector 12 being too close. It can be seen that the battery module of this application embodiment can both prevent short circuits of the electrical connector 12 and increase the heat exchange area between the cooling plate 21 and the battery cell 11.

[0048] In some embodiments, please refer to Figures 1 to 4 A portion of the cooling plate 21 may be located between the electrical connector 12 and the cell housing 111.

[0049] In other words, part of the structure of the cooling plate 21 is sandwiched between the electrical connector 12 and the cell housing 111. This not only reduces the overall size of the battery module, but also allows the cooling plate 21 to exchange heat with both the cell 11 and the electrical connector 12, resulting in a better heat exchange effect between the cooling plate 21 and the battery 10.

[0050] For example, the electrical connector 12 and the cell housing 111 can jointly press the cooling plate 21 between the electrical connector 12 and the cell housing 111.

[0051] In other words, the electrical connector 12 and the battery cell housing 111 together constrain the cooling plate 21, preventing the cooling plate 21 from shifting between the electrical connector 12 and the battery cell housing 111, thereby ensuring the installation stability of the cooling plate 21.

[0052] For example, please refer to Figure 4 The electrode post 112 is located on one side of the cell housing 111 along the first direction and is spaced apart along the second direction perpendicular to the first direction. The portion of the cooling plate 21 located between the electrical connector 12 and the cell housing 111 has a dimension W of not less than 3mm along the second direction.

[0053] In other words, on the projection plane perpendicular to the first direction, the overlap dimension between the projection of the cooling plate 21 and the projection of one of the electrical connectors 12 in the second direction is not less than 3mm. This ensures that there is sufficient heat exchange area between the electrical connector 12 and the cooling plate 21, thus ensuring the heat exchange effect between the electrical connector 12 and the cooling plate 21.

[0054] For example, on a projection plane perpendicular to the first direction, the cell housing 111 has a first dimension along a second direction and a second dimension along a third direction, wherein the first dimension is larger than the second dimension, and the third direction is perpendicular to the first and second directions, respectively. The two terminals 112 of the cell 11 are spaced apart along the second direction, so that there is a large gap between the two terminals 112, thereby maximizing the dimension of the cooling plate 21 along the second direction, thereby increasing the heat exchange area between the cell housing 111 and the cooling plate 21.

[0055] In some embodiments, please refer to Figure 1 The electrode post 112 is located on one side of the cell housing 111 along the first direction and is spaced apart along the second direction. Multiple cell units 11 are arranged at least along a third direction. The first direction, the second direction and the third direction are perpendicular to each other. The cooling plate 21 can extend along the third direction so that each cell unit 11 arranged along the third direction can share the same cooling plate 21.

[0056] Multiple battery cells 11 are arranged in a third direction, and adjacent battery cells 11 are connected by electrical connectors 12 to form a row of battery cells 11. That is, multiple electrical connectors 12 are spaced apart in a third direction, and the cooling plate 21 extends in a third direction (i.e., the length direction of the cooling plate 21 is the third direction) so that it is located on one side of multiple battery cells 11 in the first direction. Thus, the cooling plate 21 can exchange heat with multiple battery cells 11 at the same time, so that each battery cell 11 has good temperature uniformity.

[0057] Please continue reading. Figure 1 Multiple battery cells 11 can be arranged in multiple rows along a third direction and in multiple columns along a second direction. There are multiple cooling plates 21, and each battery cell 11 in the same column shares the same cooling plate 21.

[0058] In the second direction, multiple rows of individual battery cells 11 are arranged sequentially to form a battery cell module. The cooling plate 21 corresponds one-to-one with the multiple rows of individual battery cells 11 and is set at intervals along the second direction. That is, the cooling plate 21 is set separately to cool the different rows of individual battery cells 11. This can achieve precise temperature control in different zones, shorten the heat conduction path, improve heat exchange efficiency, and reduce regional temperature differences.

[0059] Please see Figure 1 and Figure 2 The cooling assembly 20 may include a first collector 22 and a second collector 23, which are respectively disposed at opposite ends of a plurality of cooling plates 21 and are in fluid communication with each cooling plate 21.

[0060] In other words, multiple cooling plates 21 are connected and fluidly communicated through the first collector 22 and the second collector 23.

[0061] By setting the first collector 22 and the second collector 23, the cooling medium can be distributed and collected, balancing the flow rate of the cooling medium in each cooling plate 21. At the same time, the flow rate of the coolant in different areas can be adjusted in a targeted manner (such as distributing more flow to the high-temperature area), so that the temperature distribution on the surface of the cooling plate 21 is more uniform, avoiding local overheating that could affect the life of the battery 10 or cause safety risks.

[0062] The first collector 22 and the second collector 23 are respectively provided with a matching interface corresponding to the cooling plate 21, and the opposite ends of the cooling plate 21 are respectively inserted into the matching interface.

[0063] In some embodiments, please refer to Figure 1 The battery cell 11 includes an explosion-proof valve 113 disposed on the battery cell housing 111.

[0064] The explosion-proof valve 113 is used to release internal gas in a controllable way when the internal pressure or temperature of the battery cell housing 111 rises abnormally, so as to prevent the battery cell 11 from exploding or violently rupturing.

[0065] The location of the explosion-proof valve 113 is not limited. For example, the explosion-proof valve 113 can be located between two adjacent poles 112. The cooling plate 21 has a clearance opening that avoids the explosion-proof valve 113. That is, the explosion-proof valve 113 is located on the same side of the cell housing 111 and the cooling plate 21. The clearance opening of the cooling plate 21 can ensure that the explosion-proof valve 113 can release pressure normally in an emergency, while avoiding damage to the cooling plate 21 due to the action of the explosion-proof valve 113, and preventing the expansion of safety risks.

[0066] Alternatively, the explosion-proof valve 113 and the pole post 112 are located on opposite sides of the cell housing 111. That is, the explosion-proof valve 113 is located on the side of the cell housing 111 that avoids the cooling plate 21, for example, the side away from the cooling plate 21, or the side adjacent to the cooling plate 21, so as to further prevent the cooling plate 21 from obstructing the pressure relief path of the explosion-proof valve 113.

[0067] In other embodiments, the battery module may also use a safe battery cell with a non-violent pressure relief burst, and the cooling plate 21 may be disposed on one side of the explosion-proof valve 113 along the first direction.

[0068] In some embodiments, the battery module also includes a heat-conducting component. The heat-conducting component may be sandwiched between the cooling plate 21 and the cell housing 111.

[0069] The heat-conducting component is used to fill the gap between the cooling plate 21 and the cell housing 111, which can significantly reduce the contact thermal resistance and allow the heat generated by the battery cell 10 to be transferred to the cooling plate 21 more efficiently through the heat-conducting component.

[0070] Thermally conductive components include, but are not limited to, thermally conductive structural adhesives and thermally conductive pads. The thermally conductive structural adhesives and thermally conductive pads can adapt to the thermal expansion and contraction of the battery 10 through elastic deformation, ensuring that they are always in contact with the cooling plate 21 and the cell housing 111 respectively, thus ensuring heat conduction efficiency. At the same time, they can also provide buffer protection, reducing rigid collisions and friction between the cooling plate 21 and the cell housing 111.

[0071] When thermally conductive structural adhesive is used in thermally conductive components, the components serve both thermal conduction and fixation functions.

[0072] In some embodiments, a heat-conducting element may be sandwiched between the cooling plate 21 and the electrical connector 12. By providing a heat-conducting element between the cooling plate 21 and the electrical connector 12, the contact thermal resistance can be reduced, allowing the heat from the electrical connector 12 to be transferred to the cooling plate 21 more efficiently through the heat-conducting element.

[0073] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A battery module, characterized in that, include: A battery, the battery comprising a plurality of individual cells and electrical connectors, each individual cell comprising a cell housing and at least two terminals spaced apart on one side of the cell housing, the electrical connectors connecting the terminals of each individual cell; A cooling assembly, comprising a cooling plate located between two adjacent terminals of at least one of the battery cells and limited by at least one electrical connector corresponding to the battery cell.

2. The battery module according to claim 1, characterized in that, A portion of the cooling plate is located between the electrical connector and the battery cell housing.

3. The battery module according to claim 2, characterized in that, The electrical connector and the battery cell housing together press against the portion of the cooling plate located between the electrical connector and the battery cell housing.

4. The battery module according to claim 2 or 3, characterized in that, The electrode is located on one side of the cell housing along a first direction and is spaced apart along a second direction perpendicular to the first direction. The portion of the cooling plate located between the electrical connector and the cell housing has a dimension of not less than 3 mm along the second direction.

5. The battery module according to any one of claims 1-3, characterized in that, The electrode post is located on one side of the cell housing along the first direction and is spaced apart along the second direction. Multiple cell units are arranged along at least a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The cooling plate extends along the third direction so that each cell unit arranged along the third direction shares the same cooling plate.

6. The battery module according to claim 5, characterized in that, Multiple battery cells are arranged in multiple rows along the third direction and in multiple columns along the second direction; there are multiple cooling plates, and each battery cell in the same column shares the same cooling plate.

7. The battery module according to claim 6, characterized in that, The cooling assembly includes a first collector and a second collector, which are respectively disposed at opposite ends of the plurality of cooling plates and are in fluid communication with each of the cooling plates.

8. The battery module according to any one of claims 1-3, characterized in that, The battery cell includes an explosion-proof valve disposed in the battery cell housing; The explosion-proof valve is located between two adjacent poles, and the cooling plate has a clearance opening that avoids the explosion-proof valve; or... The explosion-proof valve and the pole are located on opposite sides of the battery cell housing.

9. The battery module according to any one of claims 1-3, characterized in that, The battery module further includes a heat-conducting component; the heat-conducting component is sandwiched between the cooling plate and the cell housing; and / or, the heat-conducting component is sandwiched between the cooling plate and the electrical connector.

10. A battery module, characterized in that, include: A battery comprising a plurality of individual cells and electrical connectors, wherein each individual cell includes a cell housing and at least two terminals, the terminals being located on one side of the cell housing along a first direction and spaced apart along a second direction perpendicular to the first direction, the plurality of individual cells being arranged along at least a third direction, the first direction, the second direction, and the third direction being perpendicular to each other, and the electrical connectors connecting the terminals of two adjacent individual cells along the third direction to connect the individual cells in series; A cooling assembly, the cooling assembly including a cooling plate located between the terminals of two adjacent battery cells along the third direction, and limited at least by the electrical connectors connecting the two adjacent battery cells.

11. A battery pack, characterized in that, Includes the battery module as described in any one of claims 1-10.

12. A vehicle, characterized in that, Includes the battery module as described in any one of claims 1-10 or the battery pack as described in claim 11.

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