CN219067138U

CN219067138U - Battery module

Info

Publication number: CN219067138U
Application number: CN202223355808.0U
Authority: CN
Inventors: 刘江心; 杨振宇
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-23
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a battery module, which comprises: the battery module body, exhaust part and cooling part, one side of battery module body has explosion-proof valve, and exhaust part locates the one side that has explosion-proof valve of battery module body, and exhaust part has the exhaust passage, and explosion-proof valve is suitable for discharging the emission to the exhaust passage in, and cooling part locates exhaust part and is connected with exhaust part heat conduction to cool down exhaust part. According to the battery module provided by the embodiment of the utility model, the exhaust part is arranged on the side, provided with the explosion-proof valve, of the battery module body, and the cooling part for cooling the exhaust part is arranged, when the battery module is in thermal runaway, high-temperature emissions discharged by the explosion-proof valve can be discharged through the exhaust part, the exhaust part is in heat conduction connection with the cooling part, and the cooling part can be used for rapidly cooling the high-temperature emissions in the exhaust part, so that the thermal runaway diffusion risk of the battery module is reduced, and the overall safety performance is improved.

Description

Battery module

Technical Field

The utility model relates to the field of power batteries, in particular to a battery module.

Background

In the use process of the battery module, when the battery module is in thermal runaway, larger heat can be released in a shorter time, and high-temperature combustible gas is sprayed out, if no reasonable measures are taken, the generated heat can lead to thermal runaway diffusion, and the explosion of a battery pack can be possibly caused.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a battery module, in which a vent member is provided at one side of a battery module body having an explosion-proof valve and a cooling member for cooling the vent member is provided, high-temperature exhaust discharged from the explosion-proof valve can be discharged through the vent member when thermal runaway of the battery module occurs, and the vent member is thermally connected with the cooling member, and the cooling member can rapidly cool the high-temperature exhaust in the vent member, thereby reducing the thermal runaway diffusion risk of the battery module, and improving the overall safety performance.

According to an embodiment of the utility model, a battery module includes: the battery module comprises a battery module body, wherein an explosion-proof valve is arranged on one side of the battery module body; an exhaust part provided at one side of the battery module body having the explosion-proof valve, the exhaust part having an exhaust passage, the explosion-proof valve being adapted to discharge an emission into the exhaust passage; and the cooling component is arranged on the exhaust component and is in heat conduction connection with the exhaust component so as to cool the exhaust component.

According to the battery module provided by the embodiment of the utility model, the exhaust part is arranged on the side, provided with the explosion-proof valve, of the battery module body, and the cooling part for cooling the exhaust part is arranged, when the battery module is in thermal runaway, high-temperature emissions discharged by the explosion-proof valve can be discharged through the exhaust part, the exhaust part is in heat conduction connection with the cooling part, and the cooling part can be used for rapidly cooling the high-temperature emissions in the exhaust part, so that the thermal runaway diffusion risk of the battery module is reduced, and the overall safety performance is improved.

According to some embodiments of the utility model, the battery module body comprises a plurality of battery cells, the battery cells are provided with the explosion-proof valves, the explosion-proof valves of all the battery cells are positioned on the same side, one side of the exhaust component facing the battery module body is provided with a plurality of exhaust inlets which are arranged at intervals, the number of the exhaust inlets is the same as that of the explosion-proof valves, and the exhaust inlets are in one-to-one correspondence with the number of the explosion-proof valves, and each explosion-proof valve is suitable for discharging emissions into the exhaust channel through the corresponding exhaust inlet.

According to some embodiments of the utility model, the explosion proof valve is accommodated in the corresponding drain inlet.

According to some embodiments of the utility model, the plurality of battery cells are arranged in a horizontal direction, the explosion-proof valve is located at an upper side of the battery cells, the exhaust part is provided at an upper side of the battery module body, the exhaust inlet is formed at a lower surface of the exhaust part, an exhaust port through which the exhaust discharged into the exhaust passage is adapted to be exhausted is formed at an upper surface of the exhaust part.

According to some embodiments of the utility model, the plurality of battery cells are arranged in a first direction, the exhaust member extends in the first direction and the exhaust channel extends in the first direction, the exhaust port is located at least one end of the exhaust member in the first direction, and the exhaust port includes a plurality of sub exhaust ports spaced apart in a second direction, the second direction being perpendicular to the first direction and parallel to a horizontal direction.

According to some embodiments of the utility model, the plurality of battery cells are arranged along a first direction, the exhaust part extends along the first direction, the exhaust channel extends along the first direction, the cooling parts are two and are respectively arranged on two opposite sides of the exhaust part along the second direction, and the second direction is perpendicular to the first direction.

According to some embodiments of the utility model, the poles of the battery cells are electrically connected with the explosion-proof valve at the same side through bus bars, the battery module further comprises a cover plate, the cover plate is an insulating heat conducting piece, the cover plate is arranged on one side, far away from the battery cells, of the exhaust part, the cooling part and the bus bars, and the cover plate is in heat conducting connection with the cooling part and the bus bars.

According to some embodiments of the utility model, the cover plate comprises a cover plate base body and cover layers covering two opposite sides of the cover plate base body in the thickness direction, wherein one of the cover layers is in heat conduction connection with the cooling component and in heat conduction connection with the bus bar, the cover plate base body is an insulating heat conduction silica gel pad, and the cover layers are high-temperature resistant insulating films.

According to some embodiments of the utility model, the cooling component is provided with a heat exchange channel for heat exchange medium to flow, a liquid inlet and a liquid outlet, and the heat exchange channel is communicated with the liquid inlet and the liquid outlet.

According to some embodiments of the utility model, the heat exchange medium is a refrigerant.

According to some embodiments of the utility model, at least a portion of the inner wall of the heat exchange channel adjacent to the exhaust component is formed with a heat dissipating protrusion.

According to some embodiments of the utility model, the exhaust component extends along a first direction and the exhaust channel extends along the first direction, the cooling component is two and is respectively arranged at two opposite sides of the exhaust component along the second direction, and the two cooling components are connected in parallel.

According to some alternative embodiments of the utility model, the cooling member is integrally formed with the exhaust member.

According to some alternative embodiments of the utility model, a temperature adjusting plate is arranged on the other side of the battery module body, and the temperature adjusting plate is used for adjusting the temperature of the battery module body.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is an exploded view of a battery module according to some embodiments of the present utility model;

fig. 2 is a partially exploded view of the battery module of fig. 1;

FIG. 3 is a schematic diagram of an assembly of the exhaust component and the cooling component of FIG. 1;

FIG. 4 is an assembled schematic view of the exhaust component and cooling component of FIG. 3 from another perspective;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of the cover plate of FIG. 1;

fig. 7 is an enlarged view at B in fig. 6.

Reference numerals:

100. a battery module;

10. a battery module body; 1. a battery cell; 11. an explosion-proof valve; 12. an aerogel; 13. a side plate; 14. an end plate; 15. a thermally conductive structure; 2. a busbar; 3. a cover plate; 31. a cover plate group; 32. a cover layer;

20. an exhaust member; 4. an exhaust passage; 41. an exhaust inlet; 42. a discharge port; 421. a sub-discharge port;

30. a cooling member; 5. a heat exchange channel; 51. a heat radiation protrusion; 6. a liquid inlet; 7. a liquid outlet;

40. and a temperature adjusting plate.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A battery module 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 7.

As shown in fig. 1 to 2, a battery module 100 according to an embodiment of the first aspect of the present utility model includes a battery module body 10, an exhaust member 20, and a cooling member 30.

The battery module body 10 has an explosion-proof valve 11 at one side. When thermal runaway occurs in the battery module body 10, the explosion-proof valve 11 can discharge high-temperature emissions, thereby reducing the pressure inside the battery module body 10 and preventing the battery module body 10 from explosion.

The exhaust member 20 is provided at the side of the battery module body 10 having the explosion-proof valve 11, the exhaust member 20 having the exhaust passage 4, the explosion-proof valve 11 being adapted to discharge the exhaust into the exhaust passage 4. The exhaust part 20 is provided at one side of the battery module body 10 having the explosion-proof valve 11, so that high-temperature exhaust discharged from the explosion-proof valve 11 can be discharged out of the battery module 100 in time. The exhaust passage 4 of the exhaust member 20 may serve as a guide for high temperature emissions. The high-temperature exhaust discharged from the explosion-proof valve 11 may be discharged out of the battery module 100 along the exhaust passage 4 of the exhaust member 20, so that the temperature of the battery module 100 may be lowered.

The cooling component 30 is disposed on the exhaust component 20 and is thermally connected to the exhaust component 20 to cool the exhaust component 20. When the high-temperature exhaust discharged by the explosion-proof valve 11 flows along the exhaust passage 4 of the exhaust component 20, the high-temperature exhaust can transfer heat to the exhaust component 20, the cooling component 30 is in heat conduction connection with the exhaust component 20, and the heat of the exhaust component 20 can be absorbed, so that the high-temperature exhaust in the exhaust passage 4 is rapidly cooled, the thermal runaway diffusion risk of the battery module 100 is reduced, and the overall safety performance is improved.

According to the battery module 100 of the embodiment of the utility model, by arranging the exhaust part 20 on the side of the battery module body 10 having the explosion-proof valve 11 and arranging the cooling part 30 for cooling the exhaust part 20, when thermal runaway of the battery module 100 occurs, the high-temperature exhaust discharged by the explosion-proof valve 11 can be discharged through the exhaust part 20, and the exhaust part 20 is in heat conduction connection with the cooling part 30, the cooling part 30 can rapidly cool the high-temperature exhaust in the exhaust part 20, the thermal runaway diffusion risk of the battery module 100 is reduced, and thus the overall safety performance is improved.

According to some embodiments of the present utility model, referring to fig. 1 to 5, a battery module body 10 includes a plurality of battery cells 1, the battery cells 1 having explosion-proof valves 11, the explosion-proof valves 11 of all the battery cells 1 being located on the same side. When the battery cell 1 is out of control, the explosion-proof valve 11 of the battery cell 1 can discharge high-temperature discharge, thereby reducing the pressure inside the battery cell 1 and avoiding explosion of the battery cell 1. The explosion-proof valves 11 of all the battery cells 1 are positioned on the same side, so that the positions of the explosion-proof valves 11 of the battery module 100 can be more concentrated, and the discharge of high-temperature emissions is facilitated.

The exhaust member 20 has a plurality of exhaust ports 41 provided at intervals on a side thereof facing the battery module body 10, the number of the exhaust ports 41 being the same as and corresponding to the number of the explosion-proof valves 11 one by one, and each of the explosion-proof valves 11 is adapted to discharge the exhaust into the exhaust passage 4 through the corresponding exhaust port 41. The number of the exhaust inlets 41 corresponds to the number and the positions of the explosion-proof valves 11 one by one, so that each explosion-proof valve 11 can be communicated with the exhaust channel 4 through the exhaust inlet 41, high-temperature emissions discharged by each explosion-proof valve 11 can be discharged out of the battery module 100 in time, and the thermal runaway diffusion risk of the battery module 100 is reduced.

For example, an aerogel 12 may be disposed between two adjacent battery cells 1, where the aerogel 12 has good heat insulation performance, and when a thermal runaway occurs in one of the battery cells 1, the aerogel 12 may perform a heat insulation function to prevent the thermal runaway from spreading with other adjacent battery cells 1.

According to some embodiments of the present utility model, referring to fig. 1-2 and 4, the explosion-proof valve 11 is received in the corresponding vent 41, and the leakage of the exhaust of the explosion-proof valve 11 from the vent 41 into the battery module body 10 can be prevented, thereby ensuring that all the exhaust flows in the exhaust passage 4, and reducing the risk of thermal runaway of the battery module 100.

According to some embodiments of the present utility model, referring to fig. 1 to 2 and 4, a plurality of battery cells 1 are arranged in a horizontal direction, explosion-proof valves 11 are positioned at the upper sides of the battery cells 1, and exhaust parts 20 are provided at the upper sides of battery module bodies 10, so that high-temperature exhaust discharged from the explosion-proof valves 11 can be conveniently directly flowed into the exhaust parts 20, thereby reducing the risk of thermal runaway diffusion in the battery module 100 and improving the safety performance of the battery module 100.

The exhaust inlet 41 is formed at the lower surface of the exhaust member 20, so that the exhaust inlet 41 is conveniently matched with the explosion-proof valve 11, and the exhaust of the explosion-proof valve 11 is ensured to smoothly flow into the exhaust member 20. The exhaust member 20 is formed at the upper surface thereof with the exhaust port 42, and the exhaust discharged into the exhaust passage 4 is adapted to be discharged through the exhaust port 42, since the exhaust member 20 is provided at the upper side of the battery module body 10, the exhaust port 42 is formed at the upper surface of the exhaust member 20, it is possible to facilitate the exhaust in the exhaust member 20 to be discharged out of the battery module 100, thereby reducing the risk of thermal runaway diffusion in the battery module 100.

According to some embodiments of the present utility model, referring to fig. 1 to 3, a plurality of battery cells 1 are arranged in a first direction (e.g., referring to the e1 direction in the drawings), a vent part 20 extends in the first direction and a vent passage 4 extends in the first direction, and a vent 42 is positioned at least one end of the vent part 20 in the first direction, so that the overall structure can be more compact, the space utilization of the battery module 100 can be improved, and the vent part 20 can be conveniently matched with the explosion-proof valve 11 of each battery cell 1.

The discharge port 42 includes a plurality of sub-discharge ports 421 arranged at intervals in a second direction (for example, refer to the e2 direction in the drawing) perpendicular to the first direction and parallel to the horizontal direction. The plurality of sub-discharge ports 421 may divide the high-temperature discharge discharged from the discharge ports 42 to more disperse the discharged high-temperature discharge, thereby reducing the temperature of the discharged high-temperature discharge and the probability of combustion of the discharge, and further improving the safety performance of the battery module 100.

According to some embodiments of the present utility model, referring to fig. 1 to 5, the plurality of battery cells 1 are arranged along a first direction, the exhaust part 20 extends along the first direction, the exhaust channel 4 extends along the first direction, the cooling parts 30 are two and are respectively provided at opposite sides of the exhaust part 20 along a second direction, and the second direction is perpendicular to the first direction, so that the distance between the cooling parts 30 and the exhaust part 20 can be shortened, the cooling effect of the cooling parts 30 on the exhaust part 20 can be enhanced, and meanwhile, the overall structure can be made more compact, and the space utilization of the battery module 100 can be improved.

According to some embodiments of the present utility model, referring to fig. 1-2, the poles of the battery cells 1 and the explosion-proof valve 11 are located at the same side, and the poles of the battery cells 1 are electrically connected by the bus bar 2, and the battery module 100 further includes a cover plate 3, where the cover plate 3 is an insulating heat conducting member, and the cover plate 3 is disposed on the exhaust component 20, the cooling component 30, and a side of the bus bar 2 away from the battery cells 1, so as to play an insulating and isolating role on the bus bar 2, prevent the bus bar 2 from being electrically connected with other components, affect the normal use of the battery module 100, and play a role in protecting the bus bar 2, and prevent the bus bar 2 from being collided and extruded. The cover plate 3 is in heat conduction connection with the cooling component 30 and the busbar 2, and can transfer heat of the busbar 2 to the cooling component 30, so that the cooling component 30 cools the busbar 2, and the charge and discharge performance of the battery module 100 is improved.

According to some embodiments of the present utility model, referring to fig. 1-2 and 6-7, the cover plate 3 includes a cover plate 3 substrate and cover layers 32 covering opposite sides of the cover plate 3 substrate in a thickness direction, wherein one of the cover layers 32 is thermally connected to the cooling member 30 and thermally connected to the busbar 2, the cover plate 3 substrate is an insulating thermal conductive silica gel pad, and the cover layer 32 is a high temperature resistant insulating film. The cover layer 32 can improve the overall high temperature resistance of the cover plate 3 and ensure the normal use of the cover plate 3 in a high temperature environment; the substrate of the cover plate 3 is in heat conduction connection with the cooling component 30 and the busbar 2, so that the overall heat conduction performance of the cover plate 3 can be improved, and the heat of the busbar 2 can be rapidly transferred to the cooling component 30, thereby ensuring the heat exchange effect of the cooling component 30 on the busbar 2. The cover layer 32 and the cover plate 3 are insulating members, so that the cover plate 3 can insulate the busbar 2, and the busbar 2 is prevented from being electrically connected with other components, thereby affecting the normal use of the battery module 100. For example, in order to prevent the exhaust element 20 from influencing the temperature of the busbar 2 via the cover plate 3 and at the same time ensure a cooling effect of the cooling element 30 on the busbar 2, the cover plate 3 is only thermally conductively connected to the cooling element 30 and the busbar 2.

According to some embodiments of the present utility model, referring to fig. 3-5, the cooling component 30 has a heat exchange channel 5 through which a heat exchange medium flows, a liquid inlet 6, and a liquid outlet 7, and the heat exchange channel 5 communicates with the liquid inlet 6 and the liquid outlet 7. The heat exchange medium can enter the heat exchange channel 5 through the liquid inlet 6, and can flow out of the liquid outlet 7 after heat exchange in the heat exchange channel 5, so that the circulating flow of the heat exchange medium is realized, and the heat exchange effect of the cooling component 30 is ensured.

According to some embodiments of the utility model, referring to fig. 3-5, the heat exchange medium is a refrigerant. The refrigerant can be quickly vaporized when the temperature rises, and the refrigerant can absorb a large amount of heat when being vaporized, so that the temperature nearby is greatly reduced. For example, the refrigerant may be carbon dioxide, nitrogen, or the like.

According to some embodiments of the present utility model, referring to fig. 3 to 5, a heat radiation protrusion 51 is formed at least at a portion adjacent to the exhaust part 20 in the inner wall of the heat exchange passage 5. The heat dissipation protrusions 51 can increase the heat exchange area of the heat exchange medium and the heat exchange channels 5, so that the heat exchange efficiency of the cooling component 30 is improved, and the overall heat exchange effect is improved.

According to some embodiments of the present utility model, referring to fig. 3 to 5, the exhaust part 20 extends along the first direction and the exhaust channel 4 extends along the first direction, and the cooling parts 30 are two and are respectively disposed at two opposite sides of the exhaust part 20 along the second direction, so that the distance between the cooling parts 30 and the exhaust part 20 can be shortened, the cooling effect of the cooling parts 30 on the exhaust part 20 can be enhanced, and meanwhile, the overall structure can be made more compact, and the space utilization rate of the battery module 100 can be improved. The two cooling components 30 are connected in parallel, so that the heat exchange of the whole exhaust component 20 is more uniform, and meanwhile, the heat exchange efficiency of the heat exchange component can be improved, and the heat exchange effect is enhanced.

According to some alternative embodiments of the present utility model, referring to fig. 1 to 5, the cooling component 30 is integrally formed with the exhaust component 20, so that the heat conduction connection between the cooling component 30 and the exhaust component 20 is better, the heat exchange efficiency of the cooling component 30 to the exhaust component 20 is ensured, and meanwhile, the structural strength between the cooling component 30 and the exhaust component 20 is increased, so that the breakage between the cooling component 30 and the exhaust component 20 is avoided. In addition, the cooling member 30 and the exhaust member 20 are easily installed, and the assembly cost is reduced.

According to some alternative embodiments of the present utility model, referring to fig. 1 to 2, the other side of the battery module body 10 is provided with a temperature adjustment plate 40, and the temperature adjustment plate 40 is used to adjust the temperature of the battery module body 10. The temperature adjusting plate 40 is in heat conduction connection with the battery module body 10, and can adjust the temperature of the battery module body 10, so that the temperature of the battery module body 10 is reduced or increased, and the overall charge and discharge performance of the battery module 100 is ensured.

For example, a heat conductive structure 15 may be disposed between the temperature adjustment plate 40 and the battery module 100, and the heat conductive structure 15 has good heat conductive properties and junction edge properties, and may perform insulation and heat conductive functions between the temperature adjustment plate 40 and the battery module 100. The temperature adjustment plate 40 may be a liquid cooling plate.

For example, in the embodiment of the present utility model, the two ends of the battery module body 10 along the first direction are respectively provided with the end plates 14, the side walls of the battery module body 10 are respectively provided with the side plates 13, and the side plates 13 and the temperature adjusting plate 40 can together form a space for accommodating the battery module body 10, and meanwhile, the structural strength of the battery module 100 can be enhanced, so as to protect the battery module body 10.

A battery pack according to an embodiment of the second aspect of the present utility model includes: the battery module 100 according to the above-described first aspect embodiment of the present utility model.

According to the battery pack of the present utility model, by providing the above-mentioned battery module 100, when thermal runaway occurs in the battery module 100, the high-temperature exhaust discharged from the explosion-proof valve 11 can be discharged through the exhaust member 20, and the exhaust member 20 is thermally connected with the cooling member 30, and the cooling member 30 can rapidly cool the high-temperature exhaust in the exhaust member 20, thereby reducing the thermal runaway diffusion risk of the battery module 100, and improving the overall safety performance.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

the battery module comprises a battery module body, wherein an explosion-proof valve is arranged on one side of the battery module body;

an exhaust part provided at one side of the battery module body having the explosion-proof valve, the exhaust part having an exhaust passage, the explosion-proof valve being adapted to discharge an emission into the exhaust passage;

and the cooling component is arranged on the exhaust component and is in heat conduction connection with the exhaust component so as to cool the exhaust component.

2. The battery module according to claim 1, wherein the battery module body includes a plurality of battery cells having the explosion-proof valves, all of the battery cells having the explosion-proof valves on the same side, the exhaust member having a plurality of exhaust inlets arranged at intervals on a side facing the battery module body, the number of the exhaust inlets being the same as and in one-to-one correspondence with the number of the explosion-proof valves, each of the explosion-proof valves being adapted to discharge an exhaust into the exhaust passage through the corresponding exhaust inlet.

3. The battery module according to claim 2, wherein the plurality of battery cells are arranged in a horizontal direction, the explosion-proof valve is located at an upper side of the battery cells, the exhaust part is provided at an upper side of the battery module body, the exhaust inlet is formed at a lower surface of the exhaust part, an exhaust port through which the exhaust discharged into the exhaust passage is adapted to be exhausted is formed at an upper surface of the exhaust part.

4. The battery module of claim 3, wherein the plurality of battery cells are arranged in a first direction, the exhaust member extends in the first direction and the exhaust channel extends in the first direction, the exhaust port is located at least one end of the exhaust member in the first direction, and the exhaust port includes a plurality of sub-exhaust ports spaced apart in a second direction, the second direction being perpendicular to the first direction and parallel to a horizontal direction.

5. The battery module according to claim 2, wherein the plurality of battery cells are arranged in a first direction, the exhaust member extends in the first direction and the exhaust passage extends in the first direction, the cooling member is provided in two and is provided on opposite sides of the exhaust member in a second direction, the second direction being perpendicular to the first direction, respectively.

6. The battery module of claim 2, wherein the posts of the battery cells are positioned on the same side as the explosion-proof valve, and a plurality of the posts of the battery cells are electrically connected through bus bars, the battery module further comprises a cover plate, which is an insulating heat conducting member, and the cover plate is arranged on one side of the exhaust part, the cooling part and the bus bars, which is far away from the battery cells, and the cover plate is in heat conducting connection with the cooling part and the bus bars.

7. The battery module according to claim 6, wherein the cover plate includes a cover plate base body and cover layers covering opposite sides in a thickness direction of the cover plate base body, one of the cover layers is thermally connected with the cooling member and the bus bar, the cover plate base body is an insulating thermally conductive silica gel pad, and the cover layers are high-temperature resistant insulating films.

8. The battery module according to claim 1, wherein the cooling member has a heat exchange passage through which a heat exchange medium flows, and a liquid inlet and a liquid outlet, and the heat exchange passage communicates the liquid inlet and the liquid outlet.

9. The battery module according to claim 8, wherein a heat radiation protrusion is formed at least in a portion of the inner wall of the heat exchange channel adjacent to the exhaust member; and/or the exhaust part extends along a first direction, the exhaust channel extends along the first direction, the two cooling parts are respectively arranged at two opposite sides of the exhaust part along a second direction, and the two cooling parts are connected in parallel.

10. The battery module according to any one of claims 1 to 9, wherein the cooling member is integrally formed with the exhaust member; and/or the other side of the battery module body is provided with a temperature regulating plate, and the temperature regulating plate is used for regulating the temperature of the battery module body.