Battery modules and vehicles

Abstract

The utility model relates to a battery module and a vehicle. The battery module includes a battery cell and a box body, wherein a plurality of battery cells are arranged along a first direction to form a battery cell row; the box body includes a frame, a first cover plate and a second cover plate, wherein the first cover plate and the second cover plate are respectively located on both sides of the frame in a third direction and connected to the frame, the first cover plate, the frame and the second cover plate are surrounded to form an installation cavity, wherein a plurality of battery cell rows are arranged in the installation cavity, the third direction is orthogonal to the first direction and the second direction, and at least one of the first cover plate and the second cover plate is provided with a cooling channel. At least one of the first cover plate and the second cover plate of the utility model is not only a cover plate of the box body, but also has the function of cooling the battery cell, so that there is no need to provide a liquid cooling plate on the inner side of the first cover plate and / or the second cover plate adjacent to the cooling channel, thereby reducing the number of components of the battery module, reducing the size requirement of the installation cavity in the third direction, and reducing the cost of the battery module.

Description

Technical Field

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

[0002] With the popularity of electric vehicles, the performance and safety of power batteries, as their core components, are receiving increasing attention. Power battery cells generate a lot of heat during operation. If the heat is not dissipated in time, the cell temperature may be too high, which will affect the charging and discharging efficiency of the cell, shorten its service life, and even cause safety accidents.

[0003] In the prior art, battery cells are arranged in a battery module box. In order to exchange heat and cool the battery cells, an upper liquid cooling plate and a lower liquid cooling plate are respectively provided on the upper and lower sides of the battery cells. However, this increases the space requirement in the module frame in the upper and lower directions, and increases the size of the module frame in the upper and lower directions. This design not only increases the manufacturing cost, but also increases the space required for installing the battery module in the vehicle. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, an embodiment of the utility model proposes a battery module, wherein at least one of the first cover plate and the second cover plate integrates the functions of the cover plate and cooling, so that there is no need to set a liquid cooling plate on the inner side of the first cover plate and / or the second cover plate adjacent to the cooling channel, thereby reducing the number of parts of the battery module, reducing the size requirement of the installation cavity in the third direction, and also reducing the size of the box in the third direction, thereby reducing the cost of the battery module.

[0005] An embodiment of the utility model provides a vehicle.

[0006] The battery module of the embodiment of the utility model includes a battery cell and a box body, a plurality of battery cells are arranged along a first direction to form a battery cell row, and the battery cell row has a plurality of battery cells, and the plurality of battery cell rows are arranged along a second direction; the box body includes a frame, a first cover plate and a second cover plate, the first cover plate and the second cover plate are respectively located on both sides of the frame in a third direction and are connected to the frame, the first cover plate, the frame and the second cover plate are arranged to form an installation cavity, and the plurality of battery cell rows are arranged in the installation cavity, the third direction is orthogonal to the first direction and the second direction, and at least one of the first cover plate and the second cover plate is provided with a cooling channel.

[0007] At least one of the first cover plate and the second cover plate of the embodiment of the utility model is not only a cover plate of the box body, but also has the function of cooling the battery cell, so there is no need to set a liquid cooling plate on the inner side of the first cover plate and / or the second cover plate adjacent to the cooling channel, thereby reducing the number of components of the battery module, reducing the size requirement of the installation cavity in the third direction, and also reducing the size of the box body in the third direction, thereby reducing the cost of the battery module.

[0008] In some embodiments, a pole is provided on one side of the battery cell in the second direction; and two ends of the battery cell in the third direction are respectively connected to the first cover plate and the second cover plate.

[0009] In some embodiments, the battery module further includes a first heat conductive sheet, and each of the first cover plate and the second cover plate is connected to the battery cell through the first heat conductive sheet.

[0010] In some embodiments, the battery cell has two poles, and the two poles of the battery cell are arranged along the third direction. The first thermal conductive sheet located between the first cover plate and the battery cell row is connected to the pole adjacent to the third direction, and the first thermal conductive sheet located between the second cover plate and the battery cell row is connected to the pole adjacent to the third direction.

[0011] In some embodiments, two adjacent rows of battery cells form a battery cell group, and the poles of the two rows of battery cells in the battery cell group are respectively located on both sides of the battery cell group in the second direction; the box body also includes a liquid cooling plate, which is located between the two rows of battery cells in the battery cell group and connected to the two rows of battery cells.

[0012] In some embodiments, the battery module further includes a second heat conductive sheet, which connects the liquid cooling plate and the battery cell.

[0013] In some embodiments, a dimension of the battery cell in the third direction is h, a dimension of the liquid cooling plate in the third direction is H, and 0.5h≤H≤1.1h.

[0014] In some embodiments, an explosion-proof valve is provided on one side of the battery cell; the battery module further includes a barrier plate, the barrier plate is located between two adjacent battery cell groups, one end of the barrier plate in the third direction is connected to one of the first cover plate and the second cover plate, the barrier plate is opposite to the explosion-proof valve in the second direction, and an exhaust channel is formed between the barrier plate and the battery cell groups.

[0015] In some embodiments, each of the first cover plate and the second cover plate includes an inner plate and an outer plate, the inner plate is connected to the battery cell, the outer plate is provided with a cooling groove, the outer plate is fittedly connected to the inner plate, and the inner plate closes the cooling groove to form the cooling channel.

[0016] The vehicle of the embodiment of the utility model includes the battery module.

[0017] The vehicle of the embodiment of the utility model has the advantage of low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a battery module of an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a battery cell row according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the battery cell group and the liquid cooling plate of an embodiment of the utility model;

[0021] Figure 4 It is one of the schematic diagrams of the arrangement of multiple battery cell groups in a box (the first cover plate is not shown) according to an embodiment of the utility model;

[0022] Figure 5 It is a schematic cross-sectional structural diagram of a battery module at a battery cell group of an embodiment of the utility model;

[0023] Figure 6 Schematic diagram 2 of the arrangement of multiple battery cell groups in a box (the first cover plate is not shown) according to an embodiment of the utility model;

[0024] Reference numerals:

[0025] Battery module 1000;

[0026] Battery cell 1, battery cell row 10, battery cell group 100, pole 11, explosion-proof valve 12;

[0027] Box body 2, frame 21, first cover plate 22, inner plate 221, outer plate 222, cooling channel 223, second cover plate 23;

[0028] A first heat conducting plate 3 , a second heat conducting plate 4 , a blocking plate 5 , and a liquid cooling plate 6 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0030] Refer to the following Figures 1 to 6 , describing the battery module 1000 and the vehicle according to an embodiment of the present utility model.

[0031] like Figures 1 to 6 As shown, the battery module 1000 of the embodiment of the present invention includes a battery cell 1 and a box body 2 .

[0032] The plurality of battery cells 1 are arranged along a first direction (eg Figure 1 The battery cell row 10 has a plurality of battery cell rows 10 arranged along a second direction (e.g., Figure 1 The box body 2 includes a frame 21, a first cover plate 22 and a second cover plate 23. The first cover plate 22 and the second cover plate 23 are respectively located on the frame 21 in the third direction (for example Figure 1 The first cover plate 22, the frame 21 and the second cover plate 23 are arranged to form an installation cavity, and a plurality of battery cell rows 10 are arranged in the installation cavity. The third direction is orthogonal to the first direction and the second direction. At least one of the first cover plate 22 and the second cover plate 23 is provided with a cooling channel 223, and the cooling channel 223 is used to be connected to a coolant circulation system so that the coolant flows in the cooling channel 223, so that the coolant exchanges heat with the battery cell 1, and cools down the battery cell 1.

[0033] The first cover plate 22, the frame 21 and the second cover plate 23 of the embodiment of the utility model are arranged to form an installation cavity, and the first cover plate 22 and the second cover plate 23 are the covers on both sides of the frame 21 in the third direction, and at least one of the first cover plate 22 and the second cover plate 23 is provided with a cooling channel 223, so that at least one of the first cover plate 22 and the second cover plate 23 can accommodate the flow circulation of the coolant and has the function of cooling the battery cell 1, thereby realizing heat exchange and cooling of the battery cell 1.

[0034] Therefore, at least one of the first cover plate 22 and the second cover plate 23 of the embodiment of the utility model is not only a cover plate of the box body 2, but also has the function of cooling the battery cell 1, so there is no need to set a liquid cooling plate 6 on the inner side of the first cover plate 22 and / or the second cover plate 23 adjacent to the cooling channel 223, thereby reducing the number of components of the battery module 1000, reducing the size requirement of the installation cavity in the third direction, and also reducing the size of the box body 2 in the third direction, thereby reducing the cost of the battery module 1000.

[0035] For details, see Figure 5The first cover plate 22 is provided with a cooling channel 223, and the second cover plate 23 is provided with a cooling channel 223. The first cover plate 22 and the second cover plate 23 both have the functions of the cover plate and the liquid cooling plate 6 of the box body 2, so that there is no need to set an upper liquid cooling plate 6 adjacent to the first cover plate 22 and a lower liquid cooling plate 6 adjacent to the second cover plate 23 in the box body 2, thereby further reducing the number of components of the battery module 1000, reducing the cost of the battery module 1000, reducing the size requirement of the installation cavity in the third direction, and also reducing the size of the box body 2 in the third direction.

[0036] In some embodiments, a pole 11 is provided on one side of the battery cell 1 in the second direction, and both ends of the battery cell 1 in the third direction are connected to the first cover plate 22 and the second cover plate 23 respectively. Figures 1 to 4 As shown, the battery cell 1 is a rectangular body, and the sides of multiple battery cells 1 in the left-right direction are stacked in sequence to form a battery cell row 10, and the pole 11 is located on one side of the battery cell 1 in the front-back direction, so that the battery cells 1 are arranged sideways, so that the two end surfaces of the battery cells 1 in the up-down direction are smooth planes, thereby realizing the connection between the first cover plate 22 and the upper end surface of the battery cell 1, and the connection between the second cover plate 23 and the lower end surface of the battery cell 1, and realizing the support of the first cover plate 22 and the second cover plate 23 by the battery cell 1, and then the strength of the first cover plate 22 and the second cover plate 23 is increased through the support and connection of the battery cell 1 to the first cover plate 22 and the second cover plate 23, thereby ensuring the stability of the box body 2 and ensuring the safety and reliability of the battery module 1000.

[0037] Further, each of the first cover plate 22 and the second cover plate 23 includes an inner plate 221 and an outer plate 222, the inner plate 221 is connected to the battery cell 1, the outer plate 222 is provided with a cooling groove, the outer plate 222 is fitted and connected to the inner plate 221, and the inner plate 221 closes the cooling groove to form a cooling channel 223. The inner plate 221 is a flat plate, and the flat inner plate 221 can fit tightly with the upper end surface of the flat battery cell 1, which not only facilitates the connection and assembly of each of the first cover plate 22 and the second cover plate 23 with the battery cell 1, but also can further ensure the support and connection strength of the battery cell 1 to the first cover plate 22 and the second cover plate 23.

[0038] The battery module 1000 of the embodiment of the utility model further includes a first heat conductive sheet 3, and each of the first cover plate 22 and the second cover plate 23 is connected to the battery cell 1 through the first heat conductive sheet 3, thereby improving the heat transfer efficiency between the first cover plate 22 and the battery cell 1, improving the heat transfer efficiency between the second cover plate 23 and the battery cell 1, and improving the cooling effect of the first cover plate 22 and the second cover plate 23 on the battery cell 1, thereby further improving the safety and reliability of the battery module 1000.

[0039] Furthermore, the battery cell 1 has two poles 11, and the two poles 11 of the battery cell 1 are arranged along the third direction. The first heat conducting sheet 3 between the first cover plate 22 and the battery cell row 10 is connected to the pole 11 adjacent to the first heat conducting sheet 3 in the third direction, and the first heat conducting sheet 3 between the second cover plate 23 and the battery cell row 10 is connected to the pole 11 adjacent to the first heat conducting sheet 3 in the third direction. Figure 5 As shown, the first heat conductive sheet 3 located between the first cover plate 22 and the battery cell row 10 is connected to the pole 11 located on the upper side, and the first heat conductive sheet 3 located between the second cover plate 23 and the battery cell row 10 is connected to the pole 11 located on the lower side. The connection between the first heat conductive sheet 3 and the pole 11 improves the heat transfer efficiency between the pole 11 and the first cover plate 22 or the second cover plate 23 relative to each other, thereby further improving the cooling effect of the first cover plate 22 and the second cover plate 23 on the battery cell 1, and further improving the safety and reliability of the battery module 1000.

[0040] In this embodiment, the first heat conductive sheet 3 is a heat conductive structural adhesive. During the assembly process of the battery module 1000 of the embodiment of the utility model, the heat conductive structural adhesive is applied to the area between the battery cell row 10 and the second cover plate 23, which is conducive to the pressing of the battery cell 1 on the heat conductive structural adhesive so that the heat conductive structural adhesive is spread and overflows to the lower pole 11. After the heat conductive structural adhesive is cured, the first heat conductive sheet 3 connecting the lower pole 11, the battery cell 1 and the second cover plate 23 is formed. Then, the heat conductive structural adhesive is applied to the area between the battery cell row 10 and the first cover plate 22, which is conducive to the pressing of the first cover plate 22 so that the heat conductive structural adhesive is spread and overflows to the upper pole 11. After the heat conductive structural adhesive is cured, the first heat conductive sheet 3 connecting the upper pole 11, the battery cell 1 and the first cover plate 22 is formed.

[0041] In some embodiments, two adjacent cell rows 10 form a cell group 100, and the poles 11 of the two cell rows 10 of the cell group 100 are respectively located on both sides of the cell group 100 in the second direction. Figures 3 to 5 As shown, the poles 11 of the cell row 10 at the rear side of the cell group 100 are located at the rear side, and the poles 11 of the cell row 10 at the front side of the cell group 100 are located at the front side. The box 2 also includes a liquid cooling plate 6, which extends along the first direction. The liquid cooling plate 6 is located between the two cell rows 10 of the cell group 100 and is connected to the two cell rows 10.

[0042] The poles 11 of the two cell rows 10 of the cell group 100 are respectively located on both sides of the cell group 100 in the second direction, so that the adjacent end surfaces of the two cell rows 10 of the cell group 100 are smooth planes, which can not only reduce the distance between the two cell rows 10 of the cell group 100, but also facilitate the arrangement of a liquid cooling plate 6 in the cell group 100, thereby further increasing the cooling effect of the cell 1, and the connection between the liquid cooling plate 6 and the cell rows 10 located on both sides thereof makes the cell group 100 and the liquid cooling plate 6 form a whole, which not only facilitates the assembly of the cell group 100 and the box 2, and facilitates the assembly of the cell 1 of the cell group 100 and the first heat conducting sheet 3, but also improves the structural strength of the cell group 100, and then improves the strength of the first cover plate 22 and the second cover plate 23, further ensures the stability of the box 2, and further ensures the safety and reliability of the battery module 1000.

[0043] Specifically, the liquid cooling plate 6 has a liquid cooling channel, and the liquid cooling channel of the liquid cooling plate 6, the cooling channel 223 of the first cover plate 22, and the cooling channel 223 of the second cover plate 23 are connected in parallel.

[0044] The battery module 1000 of the embodiment of the utility model further includes a second heat conducting sheet 4, which connects the liquid cooling plate 6 and the battery cell 1. The front side of the liquid cooling plate 6 is connected to the battery cell 1 located at the front side of the battery cell group 100 through the second heat conducting sheet 4, and the rear side of the liquid cooling plate 6 is connected to the battery cell 1 located at the rear side of the battery cell group 100 through the second heat line, thereby improving the heat transfer efficiency between the liquid cooling plate 6 and the battery cell 1, and further improving the cooling effect of the liquid cooling plate 6 on the battery cell 1.

[0045] In this embodiment, the second heat conductive sheet 4 is a heat conductive structural adhesive. During the assembly process of the battery cell group 100 in the embodiment of the utility model, the heat conductive structural adhesive is applied to the front and rear sides of the liquid cooling plate 6, and then the liquid cooling plate 6 and the two battery cell rows 10 of the battery cell group 100 are installed in place, and a force in the front and rear directions is applied to the battery cell group 100 to spread the heat conductive structural adhesive. After the heat conductive structural adhesive is cured, the second heat conductive sheet 4 connecting the liquid cooling plate 6 and the two battery cell rows 10 is formed. The second heat conductive sheet 4 adopts a heat conductive structural member, which can simultaneously achieve bonding and heat conduction between the liquid cooling plate 6 and the two battery cell rows 10.

[0046] Furthermore, the size of the battery cell 1 in the third direction is h, and the size of the liquid cooling plate 6 in the third direction is H, 0.5h≤H≤1.1h. The size of H affects the cooling effect of the liquid cooling plate 6. The H value of the liquid cooling plate 6 is designed according to the heat dissipation of the battery cell 1 on the other side of the second direction (i.e., the opposite side of the pole 11 of the battery cell). The H value of the liquid cooling plate 6 is within the range of 0.5h-1.1h, which can meet the requirements of reducing the internal temperature difference of the battery cell group 100 and balancing the temperature of the battery cell group 100, and can also meet the requirements of cooling the battery cell 1 over a large range.

[0047] It should be noted that, since the first heat conductive sheet 3 has a certain thickness, when h<H≤1.1h, the excess portion of the liquid cooling plate 6 relative to the battery cell 1 extends into the first heat conductive sheet 3 formed by the thermal conductive structural adhesive without affecting the connection between the first cover plate 22, the second cover plate 23 and the battery cell 1.

[0048] In some embodiments, Figure 4 and Figure 5 As shown, an explosion-proof valve 12 is provided on the side of the battery cell 1, and the explosion-proof valve 12 is located on the same side as the pole 11. The battery module 1000 further includes a barrier plate 5, which is located between two adjacent battery cell groups 100, and one end of the barrier plate 5 in the third direction is connected to one of the first cover plate 22 and the second cover plate 23, and the barrier plate 5 is opposite to the explosion-proof valve 12 in the second direction. An exhaust channel is formed between the barrier plate 5 and the battery cell group 100. The barrier plate 5 is opposite to the explosion-proof valve 12 in the second direction, forming a barrier for two adjacent battery cell groups 100, so as to prevent the jet ejected from the explosion-proof valve 12 from spraying onto the battery cell 1 of the opposite battery cell group 100 and damaging the battery cell 1 when the battery cell 1 thermally runs away, thereby protecting the adjacent battery cell groups 100. At the same time, the barrier plate 5 separates the channel between the two adjacent battery cell groups 100 into two exhaust channels, and the two battery cell groups 100 can be exhausted through the two exhaust channels respectively, reducing the risk caused by thermal runaway.

[0049] In this embodiment, Figure 5 As shown, the lower end of the baffle plate 5 is connected to the second cover plate 23 , and the upper end of the baffle plate 5 is located on the upper side of the explosion-proof valve 12 .

[0050] The embodiments of the present invention are not limited thereto. For example, in some other embodiments, the lower end of the blocking plate 5 is connected to the second cover plate 23 , and the upper end of the blocking plate 5 is connected to the first cover plate 22 .

[0051] Furthermore, the barrier plate 5 includes a plate body and an insulating layer, and the insulating layer covers the surface of the plate body. The barrier plate 5 has insulating properties, thereby preventing the conductive state from occurring when the spray is sprayed onto the barrier plate 5, further improving the safety and reliability of the battery module 1000.

[0052] The vehicle according to the embodiment of the present invention includes any one of the battery modules 1000 described above.

[0053] Therefore, the vehicle according to the embodiment of the utility model has the advantage of low cost.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A battery module, characterized in that: include: A plurality of battery cells are arranged along a first direction to form a battery cell row, the battery cell row has a plurality of battery cells, and the plurality of battery cell rows are arranged along a second direction; A box body, the box body includes a frame, a first cover plate and a second cover plate, the first cover plate and the second cover plate are respectively located on both sides of the frame in a third direction and are connected to the frame, the first cover plate, the frame and the second cover plate are surrounded to form an installation cavity, a plurality of the battery cell rows are arranged in the installation cavity, the third direction is orthogonal to the first direction and the second direction, and at least one of the first cover plate and the second cover plate is provided with a cooling channel.

2. The battery module according to claim 1, characterized in that: A pole is provided on one side of the battery cell in the second direction; and two ends of the battery cell in the third direction are respectively connected to the first cover plate and the second cover plate.

3. The battery module according to claim 2, characterized in that: It further includes a first heat conductive sheet, and each of the first cover plate and the second cover plate is connected to the battery core through the first heat conductive sheet.

4. The battery module according to claim 3, characterized in that: The battery cell has two poles, and the two poles of the battery cell are arranged along the third direction. The first thermal conductive sheet located between the first cover plate and the battery cell row is connected to the pole adjacent to the third direction, and the first thermal conductive sheet located between the second cover plate and the battery cell row is connected to the pole adjacent to the third direction.

5. The battery module according to claim 2, characterized in that: Two adjacent cell rows form a cell group, and the poles of the two cell rows of the cell group are respectively located on both sides of the cell group in the second direction; The box body also includes a liquid cooling plate, which is located between the two battery cell rows of the battery cell group and connected to the two battery cell rows.

6. The battery module according to claim 5, characterized in that: It further includes a second heat conducting sheet, wherein the second heat conducting sheet connects the liquid cooling plate and the battery core.

7. The battery module according to claim 5, characterized in that: The dimension of the battery cell in the third direction is h, the dimension of the liquid cooling plate in the third direction is H, and 0.5h≤H≤1.1h.

8. The battery module according to claim 5, characterized in that: An explosion-proof valve is provided on one side of the battery cell; The battery module further includes a barrier plate, which is located between two adjacent battery cell groups, one end of the barrier plate in the third direction is connected to one of the first cover plate and the second cover plate, the barrier plate is opposite to the explosion-proof valve in the second direction, and an exhaust channel is formed between the barrier plate and the battery cell groups.

9. The battery module according to claim 2, characterized in that: Each of the first cover plate and the second cover plate includes an inner plate and an outer plate, the inner plate is connected to the battery cell, the outer plate is provided with a cooling groove, the outer plate is fitted and connected to the inner plate, and the inner plate closes the cooling groove to form the cooling channel.

10. A vehicle, characterized in that: Comprising the battery module according to any one of claims 1 to 9.

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