Battery Assembly, Battery Pack, and Vehicle

Abstract

A battery assembly, a battery pack, and a vehicle are disclosed. The battery assembly includes a plurality of cells, a connection member, and a thermally conductive member, the cells being electrically connected to each other by the connection members, the cells having a housing, the thermally conductive member being disposed between the connection members and the housing, and the thermally conductive member being thermally conductively connected to the connection members and the housing.

Description

Technical Field

[0001] (Cross - reference to related applications) This disclosure claims the priority of Chinese Patent Application No. 202121778347.0, entitled "Battery Assembly and Battery Pack", filed with the China National Intellectual Property Administration on July 30, 2021, the entire content of which is incorporated herein by reference.

[0002] This disclosure relates to a battery assembly, a battery pack, and a vehicle.

Background Art

[0003] In related technologies, all commercially available battery assemblies are such that after arranging a plurality of cells in sequence, electrical connection between the cells is realized by connection members.

[0004] However, when the battery pack is rapidly charged, the connection members may have a situation where the temperature rise is too large and heat accumulates. In this way, the heat on the connection members is transmitted to the electrode body inside the cell through the cell terminal, causing the temperature inside the cell to be too high. If the temperature inside the cell is too high, it will cause an over - temperature alarm of the battery controller in a short period, resulting in a power limit in the vehicle and affecting the driving experience. In the long term, the attenuation of the cell capacity is accelerated, affecting the cruising range, and in severe cases, it will affect the use safety of the battery pack and the safety of the vehicle.

Summary of the Invention

Problems to be Solved by the Invention

[0005] One object of this disclosure is to provide a novel technical means for a battery assembly.

[0006] Another object of this disclosure is to provide a novel technical means for a battery pack including the battery assembly.

Means for Solving the Problems

[0007] The battery assembly according to the first aspect of the present disclosure includes a plurality of cells, a connection member, and a heat conduction member. The cells are electrically connected to each other by the connection member. Each cell has a housing, and the heat conduction member is installed between the connection member and the housing, and the heat conduction member is connected to the connection member and the housing so as to be heat-conductive.

[0008] In an embodiment of the present disclosure, the heat conduction member has a first side and a second side located on opposite sides of each other. The first side of the heat conduction member abuts or adheres to the housing, the connection member is installed on the second side of the heat conduction member, and abuts or adheres to the second side of the heat conduction member.

[0009] In an embodiment of the present disclosure, one of the connection member and the housing abuts the heat conduction member, and the other adheres to the heat conduction member.

[0010] In an embodiment of the present disclosure, each cell has an electrode terminal, the battery assembly further includes a support member, the support member is installed at the same end of the plurality of cells, the connection member is installed on the side of the support member away from the cells, a first through hole corresponding to the electrode terminal is installed in the support member, the electrode terminal is inserted into the corresponding first through hole and is electrically connected to the connection member, a second through hole corresponding to the heat conduction member is further installed in the support member, and the heat conduction member is inserted into the corresponding second through hole and is connected to the housing and the connection member so as to be heat-conductive.

[0011] In an embodiment of the present disclosure, the first through hole and the second through hole are installed in the support member at intervals along the height direction of the support member.

[0012] In an embodiment of the present disclosure, the heat conduction member and the electrode terminal are located on the same side of the cell, the connection member includes a first connection portion and a second connection portion, the first connection portion corresponds to the position of the electrode terminal and is electrically connected to the electrode terminal, and the second connection portion is installed below the first connection portion and is adhered to or abuts against the heat conduction member.

[0013] In an embodiment of the present disclosure, the cell has an explosion-proof valve, and the support member is further provided with a relief hole corresponding to the explosion-proof valve, and the relief hole, the first through hole, and the second through hole are sequentially arranged along the height direction of the support member.

[0014] In an embodiment of the present disclosure, the connection member is an integrally formed sheet.

[0015] In an embodiment of the present disclosure, the housing is a metal housing.

[0016] The battery pack according to the second aspect of the present disclosure includes a liquid cooling plate and a battery assembly, the battery assembly is the battery assembly according to any one of the above, and the battery assembly is attached to one side of the liquid cooling plate.

[0017] The vehicle according to the third aspect of the present disclosure includes the battery pack.

Advantages of the Invention

[0018] According to an embodiment of the present disclosure, by installing a heat conduction member between the housing of the cell and the connection member, the heat on the connection member is transmitted to the housing of the cell by the heat conduction member and then transmitted to the outside by the housing of the cell. Therefore, the connection member can be effectively dissipated of heat, preventing the heat from accumulating in the connection sheet, and ensuring the use safety and capacity of the cell.

[0019] Hereinafter, by referring to the drawings and describing exemplary embodiments of the present disclosure in detail, other features and advantages of the present disclosure will become apparent.

Brief Description of the Drawings

[0020] The drawings incorporated in the specification and forming a part thereof illustrate embodiments of the present disclosure and, together with the description, interpret the principles of the present disclosure.

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0022] Hereinafter, various exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. It should be noted that, unless otherwise specifically described, the relative arrangements, mathematical formulas, and numerical values of the components and steps described in these embodiments do not limit the scope of the present disclosure.

[0023] Hereinafter, the description of at least one exemplary embodiment is merely exemplary in nature and in no way limits the present disclosure or its application or use.

[0024] Although not discussed in detail for the techniques, methods, and apparatuses known to those skilled in the art, where appropriate, the above techniques, methods, and apparatuses should be regarded as part of the specification.

[0025] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not limiting. Accordingly, other examples of the exemplary embodiments may have different values.

[0026] Note that similar reference numerals and letters refer to similar items in the following drawings, and thus once an item is defined in one drawing, further discussion thereof in later drawings will be unnecessary.

[0027] Hereinafter, the battery assembly 100 according to an embodiment of the present disclosure will be described in detail with reference to the drawings.

[0028] As shown in FIGS. 1 to 3, the battery assembly 100 according to an embodiment of the present disclosure includes a plurality of cells 110, a connection member 40, and a heat conduction member 30.

[0029] Specifically, the cells 110 are electrically connected to each other by the connection member 40. Each cell 110 has a housing 10, and a heat conduction member 30 is installed between the connection member 40 and the housing 10 of the cell 110. The heat conduction member 30 is thermally conductively connected to the connection member 40 and the housing 10 of the cell 110.

[0030] It should be understood that the thermally conductive connection means that one of the connection member 40 and the housing 10 abuts against the heat conduction member 30 and the other is adhered to the heat conduction member 30, or both the connection member 40 and the housing 10 abut against or are adhered to the heat conduction member 30, or the heat conduction member 30 is a thermally conductive adhesive and the connection member 40 is adhered to the housing 10 by the thermally conductive adhesive.

[0031] In other words, as shown in FIG. 1, the battery assembly 100 according to an embodiment of the present disclosure mainly includes a cell 110, a heat conduction member 30, and a connection member 40. The heat conduction member 30 is installed between the housing 10 of the cell 110 and the connection member 40. The number of cells 110 is plural, and the plural cells 110 are arranged in sequence. Each cell 110 has a housing 10, and the housing 10 includes a housing body 12 having an opening and a cover plate 11 closing the opening. The connection member 40 and the heat conduction member 30 are located on the side where the cover plate 11 of the cell 110 is located.

[0032] That is, the heat conduction member 30 is located between the connection member 40 and the cell 110. The connection member 40 can not only be electrically connected to the cell 110, but also be thermally conductively connected to the heat conduction member 30. After heat is generated in the connection member 40, the heat on the connection member 40 is transmitted to the housing 10 of the cell 110 by the heat conduction member 30, and then transmitted to the outside by the housing 10 of the cell 110, and can be dissipated by air or by a cooling system (for example, a liquid cooling plate 210), which is not limited here.

[0033] In addition, when the heat conduction member 30 transmits heat to the cover plate 11 of the cell 110 and the housing body 12 of the cell 110, the cover plate 11 of the cell 110 and the housing body 12 of the cell 110 may be metal members, for example, metal aluminum. Metal aluminum has a thermal conductivity of 237 W / m·k and has the advantage of high thermal conductivity. In addition, since the cover plate 11 of the cell 110 and the housing body 12 of the cell 110 have a large area, the heat dissipation area can be increased. Therefore, by using the method of transmitting heat to the cover plate 11 of the cell 110 and the housing body 12 of the cell 110 by the heat conduction member 30, it not only helps to dissipate the heat of the connection member 40 and prevent problems such as circuit failure caused by heat accumulation in the connection member 40, but also can dissipate heat in a timely manner and prevent heat from accumulating inside the cell 110.

[0034] When the battery is rapidly charged, the heat on the connection member 40 according to the embodiment of the present disclosure is transmitted to the housing 10 of the cell 110 by the heat conduction member 30 and then transmitted to the outside by the housing 10 of the cell 110. Therefore, the connection member 40 can be effectively dissipated, and the situation where heat accumulates in the connection member 40 and the temperature rise is too large can be prevented, ensuring the user experience and driving safety. Hereinafter, the heat conduction path according to the embodiment of the present disclosure will be described in detail based on specific situations.

[0035] Regarding Method 1 The heat conduction path is the connection member 40 - the heat conduction member 30 - the housing 10 of the cell 110.

[0036] That is, the amount of heat on the connecting member 40 can be transmitted to the housing 10 of the cell 110 by the heat conducting member 30 and can be directly diffused to the outside from the housing 10 of the cell 110.

[0037] Regarding Method 2 A liquid cooling plate 210 may be installed below the cell 110.

[0038] The heat conduction path is the connecting member 40 - the heat conducting member 30 - the housing 10 of the cell 110 - the liquid cooling plate 210.

[0039] That is, the amount of heat on the connecting member 40 can be transmitted to the housing 10 of the cell 110 by the heat conducting member 30, and the amount of heat on the housing 10 is finally transmitted to the liquid cooling plate 210. Since there may be a large contact area between the cell 110 and the liquid cooling plate 210, the heat dissipation efficiency can be greatly improved.

[0040] Thus, in the battery assembly 100 according to the embodiment of the present disclosure, by installing the heat conducting member 30 between the housing 10 of the cell 110 and the connecting member 40, the amount of heat on the connecting member 40 is transmitted to the housing 10 of the cell 110 by the heat conducting member 30 and is transmitted to the outside by the housing 10 of the cell 110. Therefore, the connecting member 40 can be effectively dissipated of heat, preventing the accumulation of heat in the connecting member 40, and ensuring the use safety and capacity of the cell 110.

[0041] In an embodiment of the present disclosure, the heat conducting member 30 has a first side and a second side located on opposite sides of each other. The first side of the heat conducting member 30 is adhered to or abuts against the housing 10 of the cell 110, and the connecting member 40 is installed on the second side of the heat conducting member 30 and is adhered to or abuts against the second side of the heat conducting member 30.

[0042] Specifically, the heat conduction member 30 may have a first side and a second side. After being attached, the first side of the heat conduction member 30 may contact or be adhered to the cover plate 11 of the cell 110, and the second side of the heat conduction member 30 may contact or be adhered to the connection member 40. By installing the connection member 40 and the cell 110 on both sides of the heat conduction member 30 that are located on opposite sides of each other, the connection member 40 can not only be electrically connected to the cell 110 by welding, but also be thermally conductively connected to the heat conduction member 30. After heat is generated on the connection member 40, the heat on the connection member 40 can be transmitted to the heat conduction member 30, and the heat conduction member 30 can effectively prevent the heat from accumulating on the connection member 40 by transmitting the heat to the housing 10 of the cell 110.

[0043] In some specific embodiments of the present disclosure, one of the connection member 40 and the housing 10 abuts against the heat conduction member 30, and the other is adhered to the heat conduction member 30.

[0044] That is, the connection member 40 is adhered to the heat conduction member 30, and the housing 10 of the cell 110 abuts against the heat conduction member 30, or the connection member 40 abuts against the heat conduction member 30, and the housing 10 of the cell 110 is adhered to the heat conduction member 30. This is not only easy to install, remove and attach, but also ensures that the heat conduction member 30 is tightly connected to the cell 110 and the connection member 40 respectively, and further ensures the heat conduction of the connection member 40 by the heat conduction member 30.

[0045] In one embodiment of the present disclosure, the cell 110 has an electrode terminal 1101, the battery assembly further includes a support member 20, the support member 20 is installed at the same end of a plurality of cells 110, the connection member 40 is installed on the side of the support member 20 away from the cell 110, a first through hole 21 corresponding to the electrode terminal 1101 is installed on the support member 20, the electrode terminal 1101 is inserted into the corresponding first through hole 21 and is electrically connected to the connection member 40. A second through hole 22 corresponding to the heat conduction member 30 is further installed on the support member 20, the heat conduction member 30 is inserted into the corresponding second through hole 22 and is thermally conductively connected to the housing 10 and the connection member 40.

[0046] Specifically, as shown in FIG. 3, the side where the cover plate 11 of the cell 110 is located has the electrode terminal 1101, the connection member 40 can be electrically connected to the electrode terminal 1101, and the connection member 40 may be connected to the electrode terminal 1101 by a welding method. The heat conduction member 30 may be located on the side where the electrode terminal 1101 of the cell 110 is located, which can reduce the length of the heat conduction path and improve the heat conduction efficiency.

[0047] Furthermore, as shown in FIG. 1, the support member 20 is installed on the cell 110 and can position the mounting positions of the connection member 40 and the heat conduction member 30. For example, the support member 20 may be installed on the cover plate 11 of the cell 110. As shown in FIG. 3, a first through hole 21 may be installed on the support member 20, and the installation position of the first through hole 21 corresponds to the position of the electrode terminal 1101. By inserting the electrode terminal 1101 into the corresponding first through hole 21 and connecting it to the connection member 40, it not only helps to position the connection member 40, but also helps with the electrical connection between the connection member 40 and the cell 110. Thus, by installing the first through hole 21 on the support member 20, it helps to attach the connection member 40 to the position corresponding to the first through hole 21, quickly position the mounting position of the connection member 40, and improve the assembly speed of the battery assembly 100.

[0048] As shown in FIG. 3, a second through hole 22 is further provided in the support member 20, and the installation position of the second through hole 22 corresponds to the attachment position of the heat conduction member 30. After the heat conduction member 30 is attached to the second through hole 22, when the connection member 40 is attached to the first through hole 21, the connection member 40 may be located above or below the heat conduction member 30, etc., and is not limited here.

[0049] That is, by providing the second through hole 22 in the support member 20, the heat conduction member 30 may be attached to a position corresponding to the second through hole 22. Not only can the attachment position of the heat conduction member 30 be positioned, but also the attachment range of the connection member 40 and the dimensional variation of the arrangement can be further determined, and the assembly speed of the battery assembly 100 can be improved.

[0050] In some specific embodiments of the present disclosure, the second through hole 22 and the first through hole 21 communicate with each other or are installed at intervals, and are not limited here. When the second through hole 22 and the first through hole 21 are set as a communication structure, it is helpful for the processing and manufacturing of the support member 20. When the second through hole 22 and the first through hole 21 are set as a structure distributed at intervals, it is helpful to improve the positioning accuracy of the connection member 40 and the heat conduction member 30.

[0051] In some specific embodiments of the present disclosure, the connection member 40 engages with the support member 20. That is, the connection member 40 is engaged and connected to the support member 20, and the support member 20 serves to support and position the connection member 40. During installation, the connection member 40 may be engaged with a position corresponding to the first through hole 21 of the support member 20, which is easy to install.

[0052] In an embodiment of the present disclosure, the support member 20 is a plastic member, and the heat conduction member 30 is a heat conduction silicone sheet.

[0053] Specifically, the support member 20 is a plastic member, which has the advantage of being light in mass, not only reducing the mass of the entire battery assembly 100, but also capable of supporting and positioning the connection member 40.

[0054] The heat conduction member 30 uses a sheet-like structure to increase the contact area between the heat conduction member 30 and the housing 10 of the cell 110, and the contact area between the heat conduction member 30 and the connection member 40 to improve the heat conduction efficiency and heat conduction effect.

[0055] For example, the heat conduction member 30 uses a heat conduction silicone sheet, the heat conduction coefficient of the heat conduction silicone sheet is 2 - 5 W / m·k, the heat conduction coefficient of air is 0.03 W / m·k, and the heat conduction coefficient of the heat conduction silicone sheet is much larger than that of air. That is, the heat quantity on the connection member 40 can be quickly conducted to the heat conduction silicone sheet, and the heat conduction silicone sheet can transfer the heat quantity to the housing 10 of the cell 110. By installing a heat conduction silicone sheet between the connection member 40 and the housing 10 of the cell 110, it can be ensured that the heat quantity is quickly transferred to the housing 10 of the cell 110 and then transferred to the outside by the housing 10 of the cell 110. Therefore, the connection member 40 can be effectively dissipated of heat, preventing the heat quantity from accumulating on the connection member 40, and ensuring the use safety and capacity of the cell 110.

[0056] In some specific embodiments of the present disclosure, the first through hole 21 and the second through hole 22 are installed at intervals along the height direction of the support member 20.

[0057] That is, when setting the second through hole 22 and the first through hole 21 to be distributed at intervals, it helps to improve the positioning accuracy for the connection member 40 and the heat conduction member 30, makes it easy to attach the connection member 40 and the heat conduction member 30, and helps to improve the overall installation speed of the battery assembly. As shown in FIG. 3, the height direction of the support member 20 refers to the direction indicated by the z direction in the figure.

[0058] In one embodiment of the present disclosure, the heat conduction member 30 and the electrode terminal 1101 are located on the same side of the cell 110, and the connection member 40 includes a first connection portion 41 and a second connection portion 42. The first connection portion 41 corresponds to the position of the electrode terminal 1101 and is electrically connected to the electrode terminal 1101. The second connection portion 42 is installed below the first connection portion 41 and abuts or adheres to the heat conduction member 30.

[0059] That is, the connection member 40 、 the first connection portion 41 and the second connection portion 42 including , and the first connection portion 41 is connected to the second connection portion 42. Specifically, the first connection portion 41 is installed at a position corresponding to the electrode terminal 1101 and is electrically connected to the electrode terminal 1101. The second connection portion 42 is installed on the side of the heat conduction member 30 away from the cell 110, and one side of the second connection portion 42 may abut or adhere to the heat conduction member 30. By installing the first connection portion 41 and the second connection portion 42, the first connection portion 41 can be electrically connected to the electrode terminal 1101, and one side of the second connection portion 42 abuts or adheres to the heat conduction member 30, so that the electrical connection function of the connection member 40 is realized, and the heat quantity on the connection member 40 can be timely conducted to the outside.

[0060] In one embodiment of the present disclosure, the cell 110 has an explosion-proof valve 1102, and the support member 20 is further provided with a relief hole 23 corresponding to the explosion-proof valve 1102. The relief hole 23, the first through hole 21, and the second through hole 22 are arranged in sequence along the height direction of the support member 20.

[0061] That is, as shown in FIG. 3, a relief hole 23 is provided in the support member 20. The relief hole 23 penetrates along the thickness direction of the support member 20. The relief hole 23, the first through hole 21, and the second through hole 22 are arranged at intervals along the height direction of the support member 20. The installation order of the relief hole 23, the first through hole 21, and the second through hole 22 on the support member 20 is the relief hole 23, the first through hole 21, and the second through hole 22. The electrode terminal 1101 is inserted into the first through hole 21 and is electrically connected to the first connection portion 41. The heat conduction member 30 is inserted into the second through hole 22 and abuts or adheres to the second connection portion 42. Thereby, it has the advantage that there is no interference with each other during installation and the arrangement is reasonable. The first connection portion 41 can be electrically connected to the electrode terminal 1101, and it can be ensured that one side of the second connection portion 42 abuts or adheres to the heat conduction member 30, and the assembly between the structures of the battery assembly 100 can be facilitated.

[0062] In some specific embodiments of the present disclosure, the connection member 40 is an integrally formed sheet. By setting the connection member 40 as an integrally formed sheet, not only the manufacturing and installation of the connection member 40 are facilitated, but also it is helpful for the abutment or adhesion between the connection member 40 and the heat conduction member 30, and helpful for the conduction of heat quantity.

[0063] In an embodiment of the present disclosure, a heat conduction member 30 is provided between each cell 110 and the corresponding connection member 40.

[0064] That is, the number of the heat conduction members 30 is plural, and one heat conduction member is provided between each cell 110 and the corresponding connection member 40, that is, each cell 110 corresponds to one heat conduction member 30. The battery assembly 100 generally includes a plurality of cells 110, and the cells 110 are electrically connected by the corresponding connection members 40. In this way, the connection member 40 can transfer heat quantity by the corresponding heat conduction member 30, which is helpful for improving the transfer efficiency.

[0065] In one embodiment of the present disclosure, the housing 10 is a metal housing. That is, the housing 10 may be manufactured from a metal material, such as metal aluminum, copper, etc. Compared with other non-metal materials, the metal has high thermal conductivity, which is helpful for heat dissipation to the connecting member 40.

[0066] The installation process of the cell 110, the support member 20, the connecting member 40, and the heat conducting member 30 is as follows. After assembling the cell 110, the support member 20 can be attached to the cover plate 11 of the cell 110. Then, paste is applied to the side of the heat conducting member 30 close to the cell 110, and the heat conducting member 30 is attached to a position corresponding to the second through hole 22. Finally, the first through hole 21 and the heat conducting member 30 are used to position the mounting position of the connecting member 40, the connecting member 40 is attached to the support member 20, and the connecting member 40 and the electrode terminal 1101 are electrically connected by welding, and it is ensured that the connecting member 40 and the heat conducting member 30 are in close contact.

[0067] Thereby, the battery assembly 100 according to the embodiment of the present disclosure can transfer the heat quantity on the connecting member 40 to the housing 10 of the cell 110 through the heat conducting member 30, effectively dissipate the heat of the connecting member 40, and prevent the heat quantity from accumulating on the connecting member 40. The battery assembly 100 of the present disclosure has advantages such as high heat dissipation effect, prevention of heat accumulation, and use safety.

[0068] The battery pack 200 according to the embodiment of the present disclosure includes a liquid cooling plate 210 and the battery assembly 100 according to any one of the above embodiments. The battery assembly 100 is attached to one side of the liquid cooling plate 210. As can be understood, the battery assembly 100 may be in direct contact with the liquid cooling plate 210, or a heat conductive adhesive is installed between the battery assembly 100 and the liquid cooling plate 210.

[0069] When installed in this way, the heat quantity on the connecting member 40 is transmitted to the housing 10 of the cell 110 by the heat conducting member 30, and then transmitted to the liquid cooling plate 210 by the housing 10 of the cell 110, thereby further improving the heat dissipation effect of the connecting member and effectively ensuring the use safety of the battery pack 200.

[0070] As shown in FIG. 4, a vehicle 300 according to an embodiment of the present disclosure includes the battery pack 200 described above.

[0071] Although several specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are merely for illustrative purposes and do not limit the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.

Description of Reference Numerals

[0072] 100 Battery Assembly 110 Cell 1101 Electrode Terminal 1102 Explosion - proof Valve 10 Housing 11 Cover Plate 12 Housing Body 20 Support Member 21 First Through - hole 22 Second Through - hole 23 Relief Hole 30 Heat Conducting Member 40 Connecting Member 41 First Connection Port 42 Second Connection Port 200 Battery Pack 210 Liquid Cooling Plate 300 Vehicle

Claims

1. A battery assembly including a plurality of cells, a connection member, a heat conduction member, and a support member, wherein the cells are electrically connected to each other by the connection member, the cell has a housing and an electrode terminal, the heat conduction member is installed between the connection member and the housing, and the heat conduction member is connected to the connection member and the housing so as to be heat-conductive, the support member is installed at the same end of the plurality of cells, the connection member is installed on the side of the support member away from the cells, a first through hole corresponding to the electrode terminal is installed in the support member, and the electrode terminal is inserted into the corresponding first through hole and is electrically connected to the connection member, a second through hole corresponding to the heat conduction member is further installed in the support member, and the heat conduction member is inserted into the corresponding second through hole and is connected to the housing and the connection member so as to be heat-conductive. A battery assembly.

2. The heat conduction member has a first side and a second side located on opposite sides of each other. The first side of the heat conduction member abuts or adheres to the housing, the connection member is installed on the second side of the heat conduction member, and abuts or adheres to the second side of the heat conduction member. The battery assembly according to claim 1.

3. One of the connection member and the housing abuts against the heat conduction member, and the other is adhered to the heat conduction member. The battery assembly according to claim 1.

4. The first through hole and the second through hole are installed in the support member at intervals along the height direction of the support member. The battery assembly according to claim 1.

5. The heat conduction member and the electrode terminal are located on the same side of the cell, and the connection member includes a first connection portion and a second connection portion, the first connection portion corresponds to the position of the electrode terminal and is electrically connected to the electrode terminal, the second connection portion is installed below the first connection portion and abuts or adheres to the heat conduction member. The battery assembly according to claim 1.

6. The cell has an explosion-proof valve, and a relief hole corresponding to the explosion-proof valve is further installed in the support member. The relief hole, the first through hole, and the second through hole are arranged in order along the height direction of the support member. The battery assembly according to claim 1.

7. The connection member is an integrally formed sheet. The battery assembly according to claim 1.

8. The battery assembly according to claim 1, wherein the housing is a metal housing.

9. Comprising a liquid cooling plate and a battery assembly, The battery assembly is the battery assembly according to any one of claims 1 to 8, and the battery assembly is a battery pack attached to one side of the liquid cooling plate.

10. A vehicle including the battery pack according to claim 9.

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