Battery cell, battery module and vehicle

Abstract

The utility model discloses a battery cell, a battery module and a vehicle, the battery cell comprises: a housing, an accommodating cavity is formed in the housing, and a first groove area and a second groove area which are distributed at an interval are formed on the housing; the roll core is mounted in the accommodating cavity, and the roll core is provided with a first pole piece and a second pole piece; wherein a first pole connected with the first pole piece is arranged in the first groove area, and a second pole connected with the second pole piece is arranged in the second groove area. According to the utility model, the battery cell, the positive pole and the negative pole can be arranged in the corresponding groove areas, and an extra space for avoiding the positive pole or the negative pole is not required to be arranged outside the battery cell, so that the structural size of the battery cell is greatly reduced, and when a plurality of battery cells are assembled, the battery cell can be assembled more conveniently. The overall space utilization rate of the battery module is favorably improved, and the energy density of the battery cell is greatly improved.

Description

Technical Field

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

[0002] During the process of assembling electric cores into a group, multiple electric cores need to be centrally installed. In related technologies, the pole columns of the electric cores are located at the ends of the electric cores and protrude from the ends of the electric cores. When the electric cores are centrally installed, the pole columns need to occupy the space at the ends of the electric cores. In particular, for conventional pole columns that protrude 3 mm - 4 mm from the end faces of the electric cores, for relatively short or short electric cores, the ratio of the height of the pole columns protruding from the electric cores to the total length or total height of the electric cores is relatively large, seriously affecting the energy density of the electric cores. At the same time, when the electric cores are assembled into an electric core module, since the pole columns protrude beyond the surface of the electric cores, a corresponding space needs to be designed at the module end to avoid the pole column structure, affecting the volume utilization rate of the module end, and there is room for improvement. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an electric core, the pole column of the electric core does not need to occupy additional installation space outside the electric core, which is beneficial to improving the energy density of the electric core, and reduces the space design for avoiding the pole column, reduces the setting difficulty, and improves the volume utilization rate of the battery module.

[0004] The electric core according to an embodiment of the utility model includes: a housing, a receiving cavity is formed inside the housing, and the housing is formed with a first groove area and a second groove area that are spaced apart; a wound core, the wound core is installed in the receiving cavity, and the wound core is provided with a first pole piece and a second pole piece; wherein, a first pole column connected to the first pole piece is arranged in the first groove area, and a second pole column connected to the second pole piece is arranged in the second groove area.

[0005] For the electric core according to an embodiment of the utility model, both the positive pole column and the negative pole column can be arranged in the corresponding groove areas, and there is no need to provide additional space outside the electric core for avoiding the positive pole column or the negative pole column, greatly reducing the structural size of the electric core, and when multiple electric cores are assembled, it is beneficial to improve the overall space utilization rate of the battery module, and greatly improves the energy density of the electric core.

[0006] For the electric core according to some embodiments of the utility model, the height of the first pole column is less than or equal to the depth of the first groove area in the height direction of the first pole column; and / or, the height of the second pole column is less than or equal to the depth of the second groove area in the height direction of the second pole column.

[0007] For a battery cell according to some embodiments of the present utility model, the outer shell has a first side surface, and both the first groove region and the second groove region are located on the first side surface.

[0008] For a battery cell according to some embodiments of the present utility model, the first groove region and the second groove region are respectively located at the two end corners of the first side surface.

[0009] For a battery cell according to some embodiments of the present utility model, an explosion-proof valve and a liquid injection hole are further provided on the first side surface, and the explosion-proof valve and the liquid injection hole are located between the first groove region and the second groove region.

[0010] For a battery cell according to some embodiments of the present utility model, the outer shell includes a housing and a top cover, the top cover is connected to the housing to define the accommodation cavity, and both the first groove region and the second groove region are formed on the top cover.

[0011] For a battery cell according to some embodiments of the present utility model, the top cover includes a main body section and two bent sections, the two bent sections are respectively connected to both ends of the main body section, and two installation notches are formed at both ends of the top of the housing;

[0012] Wherein, the main body section is connected to the middle region of the top of the housing, the two bent sections are respectively located at the two installation notches, and the first groove region and the second groove region are respectively formed on the two bent sections.

[0013] The present utility model also proposes a battery module.

[0014] For a battery module according to an embodiment of the present utility model, it includes the battery cell described in any one of the above, there are multiple battery cells, the multiple battery cells are stacked and distributed in sequence along the thickness direction, and a heat insulation plate is provided between adjacent two battery cells.

[0015] For a battery module according to some embodiments of the present utility model, it further includes a connecting piece, and the first pole column of one battery cell and the second pole column of another battery cell among adjacent two battery cells are connected through the connecting piece.

[0016] The present utility model also proposes a vehicle.

[0017] For a vehicle according to an embodiment of the present utility model, it includes the battery module described in any one of the above.

[0018] The advantages of the vehicle, the battery module and the above-mentioned battery cell over the prior art are the same, and will not be elaborated here.

[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0020] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic structural view of the battery cell of the embodiment of the present utility model;

[0022] Figure 2 is an exploded view of the battery cell of the embodiment of the present utility model;

[0023] Figure 3 is a schematic structural view of the battery module of the embodiment of the present utility model;

[0024] Figure 4 is an exploded view of the connection of two battery cells of the embodiment of the present utility model;

[0025] Figure 5 is a schematic connection view of two battery cells of the embodiment of the present utility model;

[0026] Figure 6 is a side view of the battery module of the embodiment of the present utility model;

[0027] Figure 7 is a schematic structural view (partially exploded) of the battery module of the embodiment of the present utility model.

[0028] Reference Numerals:

[0029] Battery module 1000,

[0030] Battery cell 100,

[0031] Outer shell 1, top cover 11, main body section 111, bent section 112, first groove area 113, second groove area 114, first pole 115, first side 116, explosion-proof valve 117, liquid injection hole 118, second pole 119, housing 12, installation notch 121, connecting portion 13, wound core 2, first pole piece 21, second pole piece 22,

[0032] Connecting piece 200, heat insulation plate 300. Detailed Embodiments

[0033] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0035] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] Reference will be made below to Figure 1 - Figure 2 describe a battery cell 100 according to an embodiment of the present utility model. The terminal posts of the battery cell 100 do not protrude from the end face of the battery cell 100, which is beneficial to reducing the space occupied by the terminal posts outside the battery cell 100, and can also reduce the space design for avoiding the terminal posts, reduce the setting difficulty, and improve the volume utilization rate of the battery module 1000.

[0037] As Figure 1 - Figure 2 shown, a battery cell 100 according to an embodiment of the present utility model includes: a housing 1 and a wound core 2.

[0038] A receiving cavity is formed inside the outer shell 1. The outer shell 1 is formed with a first groove area 113 and a second groove area 114 that are spaced apart. Among them, the first groove area 113 and the second groove area 114 are formed by recessing on the outer surface of the outer shell 1. For example, both the first groove area 113 and the second groove area 114 can be arranged on the end face of the outer shell 1, or both can be arranged on the side surface of the outer shell 1, or one can be arranged on the side surface of the outer shell 1 and the other can be arranged on the end face of the outer shell 1. The setting method is flexibly selectable and can be set in different forms, which is beneficial to meeting different types of installation requirements.

[0039] The winding core 2 is installed in the receiving cavity, that is, the winding core 2 is located inside the outer shell 1, so that the outer shell 1 can play a protective role for the winding core 2, which is beneficial to the winding core 2 to perform discharge and charge functions in a relatively enclosed environment inside the outer shell 1, and ensure the safety and reliability of the battery cell 100.

[0040] The winding core 2 is provided with a first pole piece 21 and a second pole piece 22. A first pole column 115 connected to the first pole piece 21 is provided in the first groove area 113, and a second pole column 119 connected to the second pole piece 22 is provided in the second groove area 114. Among them, one of the first pole column 115 and the second pole column 119 is a positive pole column and the other is a negative pole column, and one of the first pole piece 21 and the second pole piece 22 is a positive pole piece and the other is a negative pole piece. And in actual connection, the positive pole column can be connected to the positive pole piece, and the negative pole column can be connected to the negative pole piece. For example, in specific design, the first pole column 115 can be set as the positive pole column, the first pole piece 21 can be set as the positive pole piece, the second pole column 119 can be set as the negative pole column, and the second pole piece 22 can be set as the negative pole piece.

[0041] That is to say, by setting the first groove area 113 and arranging the first pole column 115 in the first groove area 113, at least part of the first pole column 115 can be located in the first groove area 113. For example, the lower end of the first pole column 115 is located in the first groove area 113 or the whole is located in the first groove area 113, so that the first pole column 115 will not occupy too much space outside the battery cell 100 and reduce the overall size of the battery cell 100. Similarly, by setting the second groove area 114 and arranging the second pole column 119 in the second groove area 114, at least part of the second pole column 119 can be located in the second groove area 114. For example, the lower end of the second pole column 119 is located in the second groove area 114 or the whole is located in the second groove area 114, so that the second pole column 119 will not occupy too much space outside the battery cell 100 and reduce the overall size of the battery cell 100.

[0042] Thus, both the positive electrode terminal and the negative electrode terminal can be disposed within the corresponding groove regions, eliminating the need to provide additional space outside the battery cell 100 for avoiding the positive electrode terminal or the negative electrode terminal. This significantly reduces the structural size of the battery cell 100. Moreover, when assembling multiple battery cells 100, it is beneficial to improve the overall space utilization rate of the battery module 1000, greatly enhancing the energy density of the battery cell 100.

[0043] In some embodiments, the height of the first terminal 115 is less than or equal to the depth of the first groove region 113 in the height direction of the first terminal 115. That is, the height of the first terminal 115 can be set to be less than the depth of the first groove region 113 or equal to the depth of the first groove region 113, such that the first terminal 115 does not protrude from the surface where the first groove region 113 is located. As Figure 1 shown, the first groove region 113 is formed at the top of the housing 1, and the vertical height of the first terminal 115 is less than the vertical depth of the first groove region 113, so that the first terminal 115 is received within the first groove region 113, thereby preventing the first terminal 115 from additionally occupying the space outside the battery cell 100 and facilitating the reduction of the structural size of the battery cell 100.

[0044] And / or, in some embodiments, the height of the second terminal 119 is less than or equal to the depth of the second groove region 114 in the height direction of the second terminal 119. That is, the height of the second terminal 119 can be set to be less than the depth of the second groove region 114 or equal to the depth of the second groove region 114, such that the second terminal 119 does not protrude from the surface where the second groove region 114 is located. As Figure 1 shown, the second groove region 114 is formed at the top of the housing 1, and the vertical height of the second terminal 119 is less than the vertical depth of the second groove region 114, so that the second terminal 119 is received within the second groove region 114, thereby preventing the second terminal 119 from additionally occupying the space outside the battery cell 100 and facilitating the reduction of the structural size of the battery cell 100.

[0045] Thus, both the first terminal 115 and the second terminal 119 are located within the corresponding groove regions, such that neither the first terminal 115 nor the second terminal 119 occupies additional installation space. For example, when assembling the battery cell 100, as Figure 1 shown, neither the first terminal 115 nor the second terminal 119 additionally occupies the space above the battery cell 100, facilitating the reduction of the vertical installation space of the battery cell 100. Similarly, there is no need to provide space at the top of the battery cell 100 for avoiding the terminals, greatly reducing the overall structural size of the battery module 1000 and facilitating the improvement of the energy density of the battery.

[0046] In some embodiments, the housing 1 has a first side surface 116, and both the first groove region 113 and the second groove region 114 are located on the first side surface 116. That is, both the first groove region 113 and the second groove region 114 can be formed on the same side of the battery cell 100, so that both the first pole 115 and the second pole 119 are located on the same side of the battery cell 100. In this way, it is not only beneficial to process and form the first groove region 113 and the second groove region 114 on the same side of the battery cell 100, reducing the forming difficulty, but also the first pole 115 and the second pole 119 being on the same side facilitates the electrical connection between multiple battery cells 100, improving the installation efficiency.

[0047] Specifically, as Figure 1 and Figure 2 shown, the first side surface 116 can be the upper side surface on the outside, that is, both the first groove region 113 and the second groove region 114 can be arranged on the top of the battery cell 100, realizing the concentrated arrangement of the two groove regions and reducing the arrangement difficulty.

[0048] In some embodiments, the first groove region 113 and the second groove region 114 are respectively located at the two end corners of the first side surface 116, realizing the dispersed forming of the first groove region 113 and the second groove region 114. Specifically, as Figure 1 shown, the first groove region 113 is arranged at the left end corner of the top of the battery cell 100, and the second groove region 114 is arranged at the right end corner of the top of the battery cell 100, so as to facilitate the electrical connection of the poles at the ends of different battery cells 100. As Figure 3 - Figure 7 shown, the positive and negative poles of adjacent two battery cells 100 can be connected by the connecting piece 200 arranged at the end, and the operation is convenient.

[0049] At the same time, it should be noted that when the first groove region 113 and the second groove region 114 are respectively located at the two end corners of the first side surface 116, the first groove region 113 and the second groove only have two processing surfaces, namely one bottom surface and one side surface. That is, compared with the three processing surfaces arranged in the middle region, the processing difficulty is reduced, which is beneficial to improving the forming efficiency of the battery cell 100 and reducing the design cost.

[0050] In some embodiments, the first side surface 116 is also provided with an explosion-proof valve 117 and a liquid injection hole 118. The explosion-proof valve 117 and the liquid injection hole 118 are located between the first groove region 113 and the second groove region 114. In this way, the explosion-proof, liquid injection and pole connection of the battery cell 100 are all located on the same side of the battery cell 100, which is more conducive to operating on the same side of the battery cell 100 and reducing the operation difficulty.

[0051] Specifically, as Figure 1As shown, the explosion-proof valve 117 and the liquid injection hole 118 are located on the top surface of the battery cell 100 and are between the first groove area 113 and the second groove area 114. For example, the explosion-proof valve 117 is arranged close to the first groove area 113, and the liquid injection hole 118 is arranged close to the second groove area 114, so that a relatively large separation area is formed between the explosion-proof valve 117 and the liquid injection hole 118, avoiding functional interference between explosion-proof and liquid injection, and improving the rationality of the structural arrangement.

[0052] In some embodiments, the housing 1 includes a housing body 12 and a top cover 11. The top cover 11 is connected to the housing body 12 to define a receiving cavity. Specifically, as Figure 2 shown, the housing body 12 forms an upwardly open receiving groove, and the top cover 11 is connected to the top of the housing body 12 to close the open end of the receiving groove, thereby jointly defining the receiving cavity. Among them, the top cover 11 can be detachably connected to the housing body 12 so that the receiving cavity can be selectively opened. And during actual installation, the wound core 2 can be loaded into the receiving groove from above the housing body 12 and at the open end of the receiving groove, and then the top cover 11 is connected to the top of the housing body 12 to close the receiving groove, so that the wound core 2 can be in a relatively closed receiving cavity, ensuring the stable structural state of the wound core 2.

[0053] Both the first groove area 113 and the second groove area 114 are formed on the top cover 11. That is, a recessed structure can be provided on the top cover 11 to form the first groove area 113 and the second groove area 114. In this way, during actual installation, both the first pole 115 and the second pole 119 can be installed on the top cover 11. At the same time, as Figure 2 shown, an extended connecting portion 13 is provided on the tops of the first pole 115 and the second pole 119. The connecting portion 13 can be connected and fixed to the corresponding pole piece, and then the top cover 11 is fixedly connected to the housing body 12, so that the pole and the pole piece form an effective electrical connection, with a simple structure and convenient installation.

[0054] In some embodiments, the top cover 11 includes a main body section 111 and two bent sections 112. The two bent sections 112 are respectively connected to both ends of the main body section 111. Specifically, as Figure 2 shown, the main body section 111 is configured as a long strip, and both bent sections 112 are configured as L-shaped, and the upper ends of the bent sections 112 are connected to the ends of the main body section 111, so that the bent sections 112 form an outwardly open groove area at the ends of the main body section 111.

[0055] At the same time, two installation notches 121 are formed at both ends of the top of the housing body 12, and the inner shapes of the two installation notches 121 are adapted to the shapes of the bent sections 112.

[0056] Thus, during actual installation, the main body section 111 is connected to the middle area at the top of the housing 12, so that the main body section 111 closes the middle area at the top of the receiving groove. The two bent sections 112 are respectively located at the two installation notches 121, so that the two bent sections 112 respectively close the two end areas at the top of the receiving groove, thereby making the battery cell 100 configured as a closed structure.

[0057] Among them, the first groove area 113 and the second groove area 114 are respectively formed on the two bent sections 112, that is, the first pole 115 and the second pole 119 are respectively installed on the two bent sections 112. Among them, the bent section 112 includes a vertical part and a horizontal part. The first pole 115 and the second pole 119 are installed on the horizontal part of the corresponding bent section 112, and the first pole 115 and the second pole 119 are both set to be less than the height of the vertical part, so that the first pole 115 is located inside the first groove area 113 and the second pole 119 is located inside the second groove area 114, realizing a compact setting of the structure of the battery cell 100 with a simple structure.

[0058] The present utility model also proposes a battery module 1000.

[0059] The battery module 1000 according to the embodiment of the present utility model includes the battery cell 100 of any one of the above embodiments. Among them, there are multiple battery cells 100, and the multiple battery cells 100 are stacked and distributed in sequence along the thickness direction, and a heat insulation plate 300 is provided between adjacent two battery cells 100. As Figure 3 - Figure 7 shown, the thickness direction of the battery cell 100 is along the horizontal direction, which can enable the multiple battery cells 100 to be stacked and distributed along the horizontal direction, and as Figure 7 shown, adjacent two battery cells 100 are separated by a partition board to prevent the heat of the battery cells 100 from diffusing to each other. Especially when a single battery cell 100 is out of control thermally, the partition board can prevent the thermally out-of-control battery cell 100 from diffusing heat to other battery cells 100, greatly improving the overall safety of the battery module 1000.

[0060] Among them, after the multiple battery cells 100 are stacked and assembled, the pole of each battery cell 100 is located in the corresponding groove area and does not protrude from the side of the battery cell 100, so that the overall structural size of the battery module 1000 is smaller. As Figure 6 shown, the pole is located in the corresponding groove area, which can make the vertical height of the battery module 1000 smaller and more compact, improving the space utilization rate.

[0061] In some embodiments, the battery module 1000 further includes a connecting piece 200. The first pole column 115 of one battery cell 100 and the second pole column 119 of another adjacent battery cell 100 are connected by the connecting piece 200. Specifically, among two adjacent battery cells 100, the positive pole column of one battery cell 100 and the negative pole column of another battery cell 100 are electrically connected by the connecting piece 200, so that multiple battery cells 100 can be sequentially connected in series as a whole through the connecting piece 200.

[0062] As Figure 4 and Figure 5 shown, a connecting piece 200 is provided at the end of two adjacent battery cells 100. Among them, the connecting piece 200 located at one end of a battery cell 100 is used to electrically connect the first pole column 115 of this battery cell 100 and the second pole column 119 of an adjacent battery cell 100 on the left, and the connecting piece 200 located at the other end of the battery cell 100 is used to electrically connect the second pole column 119 of this battery cell 100 and the first pole column 115 of an adjacent battery cell 100 on the right, so as to realize the electrical connection of each battery cell 100. And as Figure 3 and Figure 6 shown, after each battery cell 100 is stacked and installed, the first groove area 113 and the second groove area 114 of each battery cell 100 form an integral groove at the top corner of the battery module 1000. After the connecting pieces 200 connect the pole columns, the connecting pieces 200 are located in the integral groove, that is, the connecting pieces 200 do not need to occupy additional installation space, greatly reducing the occupation of the external space by the battery module 1000 and making the overall structure of the battery module 1000 more compact.

[0063] The present utility model also proposes a vehicle.

[0064] The vehicle according to the embodiment of the present utility model includes the battery module 1000 of any one of the above embodiments. Among them, by setting the battery module 1000, the overall space occupied by the battery cells 100 of the battery module 1000 is relatively small. Especially when applied to the whole vehicle, the vertical height of the battery module 1000 is greatly reduced, and further the occupation of the vertical space of the battery module 1000 on the vehicle is reduced, which is beneficial to realizing the reasonable layout of the battery module 1000 in the whole vehicle and achieving compact installation.

[0065] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0066] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A battery cell, characterized in that: include: A housing, wherein a receiving cavity is formed in the housing, and wherein the housing is formed with a first groove area and a second groove area which are spaced apart from each other; A winding core, the winding core is installed in the accommodating cavity, and the winding core is provided with a first pole piece and a second pole piece; A first pole connected to the first pole piece is disposed in the first groove region, and a second pole connected to the second pole piece is disposed in the second groove region.

2. The battery cell according to claim 1, characterized in that: The height of the first pole is less than or equal to the depth of the first groove area in the height direction of the first pole; And / or, the height of the second pole is less than or equal to the depth of the second groove area in the height direction of the second pole.

3. The battery cell according to claim 1 or 2, characterized in that: The housing has a first side surface, and the first groove area and the second groove area are both located on the first side surface.

4. The battery cell according to claim 3, characterized in that: The first groove area and the second groove area are respectively located at two end corners of the first side surface.

5. The battery cell according to claim 3, characterized in that: The first side surface is also provided with an explosion-proof valve and a liquid injection hole, and the explosion-proof valve and the liquid injection hole are located between the first groove area and the second groove area.

6. The battery cell according to claim 1 or 2, characterized in that: The housing includes a shell and a top cover, the top cover is connected to the shell to define the accommodating cavity, and the first groove area and the second groove area are both formed on the top cover.

7. The battery cell according to claim 6, characterized in that: The top cover includes a main body section and two bent sections, the two bent sections are respectively connected to the two ends of the main body section, and two installation notches are formed at the two ends of the top of the shell; The main body section is connected to the top middle area of ​​the shell, the two bending sections are respectively located at the two installation notches, and the first groove area and the second groove area are respectively formed in the two bending sections.

8. A battery module, characterized in that: The invention comprises the battery cell according to any one of claims 1 to 7, wherein there are a plurality of battery cells, the plurality of battery cells are stacked and distributed in sequence along the thickness direction, and a heat insulation plate is provided between two adjacent battery cells.

9. The battery module according to claim 8, characterized in that: It also includes a connecting piece, through which the first pole of one of the two adjacent battery cells is connected to the second pole of the other battery cell.

10. A vehicle, characterized in that: A battery module according to any one of claims 8 to 9 is provided.

Images