End cover structure of battery module, battery module and battery pack
By introducing an insulating spacer into the end cap structure of the battery module, the problem of insulation failure of the battery module is solved, the electrical safety and integration are improved, and the production and assembly process is simplified.
Patent Information
- Application Number
- CN202420938936.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the stacking process, existing battery modules have inadequate coverage of the blue film or deviation in the pasting position of the bent insulating insulating sheet, which increases the production complexity and assembly difficulty, and has low integration.
Design an end cap structure of a battery module, including an insulating spacer, which is arranged between the battery cell and the positive or negative electrode of the integrated busbar, increase electrical gap and avoid insulation failure, reduce dependence on the bending insulating sheet, and simplify the assembly process .
It effectively avoids the risk of insulation failure, improves the electrical safety of the battery module, reduces production complexity and assembly difficulty, and improves integration.
Smart Images
Figure CN222261281U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, and in particular to an end cover structure of a battery module, a battery module and a battery pack. Background Art
[0002] The battery module includes an integrated busbar (Cells Contact System, abbreviated as CCS), two end covers and multiple battery cells, the multiple battery cells are arranged in sequence, the integrated busbar is arranged on one side of the multiple battery cells with poles in a direction perpendicular to the arrangement direction of the multiple battery cells, and is used to electrically connect the multiple battery cells (for example, in series, in parallel, or in series and in parallel) by electrically connecting to the poles of the multiple battery cells (for example, welding), the two battery cells at the two ends of the multiple battery cells are electrically connected to the positive and negative electrodes of the integrated busbar one by one, and the positive and negative electrodes of the integrated busbar can be used as the positive and negative electrodes of the battery module. Two end covers are arranged one by one at the head and tail sides of the queue where the multiple battery cells are arranged, and are used to fix and limit the multiple battery cells.
[0003] However, due to the fact that the blue film on the two battery cells located at both ends of the multiple battery cells is not properly coated or is damaged during the stacking of the battery module, or the bent insulating sheets on the edges of the two battery cells located at both ends of the multiple battery cells are pasted in the deviation position, the aluminum shells of the battery cells are exposed, and the positive and negative electrodes of the integrated busbar are too close to the aluminum shells of the two battery cells that are electrically connected one by one, resulting in the risk of insulation failure between the integrated busbar and the corresponding electrically connected battery cells. Since it is necessary to set bent insulating sheets on the edges of the two battery cells located at both ends of the multiple battery cells to provide insulation protection between the battery cells and the end covers or the positive and negative electrodes of the integrated busbar, the battery module has more materials and processing steps, which makes the production and assembly of the battery module more complicated and the integration lower. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art, and proposes an end cover structure of a battery module, a battery module and a battery pack, which can avoid the risk of insulation failure of the battery module and the battery pack, thereby improving the electrical safety of the battery module and the battery pack, and can also reduce the materials and processing procedures of the battery module and the battery pack, thereby reducing the production and assembly complexity of the battery module and the battery pack, and improving the integration of the battery module and the battery pack.
[0005] In order to achieve the purpose of the utility model, an end cover structure of a battery module is provided, comprising a cover body, wherein the cover body is used to be arranged on a side of the battery cell located at one end of a plurality of battery cells arranged in sequence in the battery module, away from the other battery cells, and the cover body is provided with an insulating spacer, wherein the insulating spacer is used to be arranged between the battery cell located at one end of the plurality of battery cells and the positive electrode or negative electrode of the integrated busbar of the battery module that is electrically connected to the battery module when the end cover structure is assembled to the battery module.
[0006] Optionally, the insulating spacer is used to cover the edge of one side of the battery cell located at one end of the plurality of battery cells facing the integrated busbar when the end cover structure is assembled to the battery module, and to cover at least a portion of the first insulating member provided on the side of the battery cell located at one end of the plurality of battery cells facing the integrated busbar.
[0007] Optionally, in a direction perpendicular to a direction of the cover body from toward the battery cell to away from the battery cell, the insulating spacer extends from one side of the cover body to the other side of the cover body.
[0008] Optionally, the thickness of the insulating spacer is 1 mm-2 mm.
[0009] Optionally, the cover body is an insulating cover body.
[0010] Optionally, a connection structure is provided on a surface of the insulation cover body adjacent to the battery cell, and the insulation cover body is connected to the adjacent battery cell via the connection structure.
[0011] Optionally, the connection structure includes a bonding component, and the bonding component is used to bond the insulation cover body to the adjacent battery core.
[0012] The utility model also provides a battery module, comprising an integrated busbar, a plurality of battery cells and an end cover structure of the battery module provided by the utility model, wherein the plurality of battery cells are arranged in sequence, the integrated busbar is arranged on a side of the plurality of battery cells having a pole, for electrically connecting the plurality of battery cells, and the end cover structure is arranged on a side of the battery cell at one end of the plurality of battery cells that is away from the other battery cells.
[0013] Optionally, a first insulating member is provided on a portion of the battery cell facing the integrated busbar.
[0014] The utility model also provides a battery pack, comprising the battery module provided by the utility model.
[0015] The utility model has the following beneficial effects:
[0016] The end cap structure of the battery module provided by the utility model is provided with an insulating spacer on the cover body. When the end cap structure is assembled to the battery module, the cover body can be provided on a side of a battery cell located at one end of a plurality of battery cells arranged in sequence in the battery module that is away from the other battery cells. The insulating spacer can be provided between the battery cell located at one end of the plurality of battery cells and the positive electrode or negative electrode of the integrated busbar of the corresponding electrically connected battery module. In this way, the electrical clearance and creepage distance between the battery cell located at one end of the plurality of battery cells and the positive electrode or negative electrode of the integrated busbar of the corresponding electrically connected battery module can be increased with the help of the insulating spacer, thereby avoiding the battery cell located at one end of the plurality of battery cells and the positive electrode or negative electrode of the integrated busbar of the corresponding electrically connected battery module. The risk of insulation failure between the positive or negative electrodes of the busbar is reduced, and the electrical safety between the battery cell located at one end of the multiple battery cells and the positive or negative electrode of the corresponding electrically connected integrated busbar is improved, thereby avoiding the risk of insulation failure of the battery module and the battery pack, thereby improving the electrical safety of the battery module and the battery pack, and further, there is no need to set a bent insulating sheet on the edge of the battery cell located at one end of the multiple battery cells, and the setting of the bent insulating sheet on the battery cell located at one end of the multiple battery cells is cancelled, thereby reducing the materials and processing procedures of the battery module and the battery pack, thereby reducing the production and assembly complexity of the battery module and the battery pack, and improving the integration of the battery module and the battery pack.
[0017] The battery module provided by the utility model can avoid the risk of insulation failure of the battery module and the battery pack by means of the end cover structure of the battery module provided by the utility model, thereby improving the electrical safety of the battery module and the battery pack, and can also reduce the materials and processing steps of the battery module and the battery pack, thereby reducing the production and assembly complexity of the battery module and the battery pack and improving the integration of the battery module and the battery pack.
[0018] The battery pack provided by the utility model can avoid the risk of insulation failure of the battery module and the battery pack with the help of the battery module provided by the utility model, thereby improving the electrical safety of the battery module and the battery pack, and can also reduce the materials and processing steps of the battery module and the battery pack, thereby reducing the production and assembly complexity of the battery module and the battery pack and improving the integration of the battery module and the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the three-dimensional structure of the end cover structure of the battery module provided by an embodiment of the utility model;
[0020] Figure 2 A schematic side view of the end cover structure of a battery module provided by an embodiment of the utility model;
[0021] Figure 3 A schematic diagram of the top view of the battery module provided by an embodiment of the utility model;
[0022] Figure 4 A schematic diagram of the main structure of a battery module provided by an embodiment of the utility model;
[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of a local A;
[0024] Figure 6 for Figure 4 An enlarged structural schematic diagram of a local B;
[0025] Description of reference numerals:
[0026] 1-end cover structure; 11-cover body; 12-insulating spacer; 13-connecting structure; 2-battery module; 21-battery cell; 211-housing; 212-first insulating member; 213-insulating film layer; 22-integrated busbar; 221-positive electrode; 222-negative electrode; 23-first fixing bolt; 24-second fixing bolt; 25-fastener; 26-slot. DETAILED DESCRIPTION
[0027] In order to enable technicians in this field to better understand the technical solution of the utility model, the insulation between the aluminum shells of multiple battery cells in the battery module and the integrated busbar and the end cover in the prior art is first introduced. In the prior art, the outer peripheral wall of the aluminum shell of the battery cell and the side of the aluminum shell of the battery cell facing away from the integrated busbar (for example, the bottom surface) are covered with an insulating film (for example, a blue film), and the side of the aluminum shell of the battery cell facing the integrated busbar (for example, the top surface) is provided with a first insulating sheet, and the edges of the two battery cells located at both ends of the multiple battery cells in the battery module close to the integrated busbar and the end cover are provided with bent insulating sheets, and the bent insulating sheets respectively cover the edge of the side of the aluminum shell of the battery cell facing the integrated busbar, and the side of the insulating film of the battery cell facing the end cover. The material of the end cover is a metal material with conductivity, and the side of the end cover adjacent to the battery cell is provided with a second insulating sheet. For two battery cells located at both ends of the multiple battery cells, the first insulating sheet and the bent insulating sheet covering the side of the battery cell aluminum shell facing the integrated busbar are used to insulate the aluminum shell of the battery cell from the integrated busbar, and the insulating film, the second insulating sheet and the bent insulating sheet covering the side of the battery cell insulating film facing the end cover are used to insulate the aluminum shell of the battery cell from the end cover.
[0028] However, due to the fact that the blue film on the two battery cells located at both ends of the multiple battery cells is not properly coated or is damaged during the stacking of the battery module, or the bent insulating sheets on the edges of the two battery cells located at both ends of the multiple battery cells are pasted in the deviation position, the aluminum shells of the battery cells are exposed, and the positive and negative electrodes of the integrated busbar are too close to the aluminum shells of the two battery cells that are electrically connected one by one, resulting in the risk of insulation failure between the integrated busbar and the corresponding electrically connected battery cells. Since it is necessary to set bent insulating sheets on the edges of the two battery cells located at both ends of the multiple battery cells to provide insulation protection between the battery cells and the end covers or the positive and negative electrodes of the integrated busbar, the battery module has more materials and processing steps, which makes the production and assembly of the battery module more complicated and the integration lower.
[0029] The end cover structure of the battery module, the battery module and the battery pack provided by the present invention are described in detail below with reference to the accompanying drawings.
[0030] like Figure 1-Figure 6 As shown, an embodiment of the utility model provides an end cover structure 1 of a battery module 2, including a cover body 11, the cover body 11 is used to be arranged on a side of a battery cell 21 located at one end of a plurality of battery cells 21 arranged in sequence in the battery module 2, away from the other battery cells 21, the cover body 11 is provided with an insulating spacer 12, the insulating spacer 12 is used to be arranged between the battery cell 21 located at one end of the plurality of battery cells 21 and the positive electrode 221 or the negative electrode 222 of the integrated busbar 22 of the corresponding electrically connected battery module 2 when the end cover structure 1 is assembled to the battery module 2.
[0031] The end cover structure 1 of the battery module 2 provided by the embodiment of the utility model is provided with an insulating spacer 12 on the cover body 11. When the end cover structure 1 is assembled to the battery module 2, the cover body 11 can be provided on a side of a battery cell 21 located at one end of a plurality of battery cells 21 arranged in sequence in the battery module 2, which is away from the other battery cells 21. The insulating spacer 12 can be provided between the battery cell 21 located at one end of the plurality of battery cells 21 and the positive electrode 221 or the negative electrode 222 of the integrated busbar 22 of the corresponding electrically connected battery module 2. In this way, the electrical clearance and creepage distance between the battery cell 21 located at one end of the plurality of battery cells 21 and the positive electrode 221 or the negative electrode 222 of the integrated busbar 22 of the corresponding electrically connected battery module 2 can be increased with the help of the insulating spacer 12, thereby preventing the battery cell 21 located at one end of the plurality of battery cells 21 from being blocked. 1 and the positive electrode 221 or the negative electrode 222 of the corresponding electrically connected integrated busbar 22, thereby improving the electrical safety between the battery cell 21 located at one end among the multiple battery cells 21 and the positive electrode 221 or the negative electrode 222 of the corresponding electrically connected integrated busbar 22, thereby avoiding the risk of insulation failure of the battery module 2 and the battery pack, thereby improving the electrical safety of the battery module 2 and the battery pack, and further, it is no longer necessary to set a bent insulating sheet on the edge of the battery cell 21 located at one end among the multiple battery cells 21, and the setting of the bent insulating sheet on the battery cell 21 located at one end among the multiple battery cells 21 is cancelled, thereby reducing the materials and processing procedures of the battery module 2 and the battery pack, thereby reducing the production and assembly complexity of the battery module 2 and the battery pack, and improving the integration of the battery module 2 and the battery pack.
[0032] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment of the utility model, the insulating spacer 12 can be used to cover the edge of one side of the battery cell 21 located at one end among the multiple battery cells 21 facing the integrated busbar 22 when the end cover structure 1 is assembled to the battery module 2, and to cover at least a portion of the first insulating member 212 provided on one side of the battery cell 21 located at one end among the multiple battery cells 21 facing the integrated busbar 22.
[0033] That is to say, when the end cover structure 1 is assembled to the battery module 2, the insulating spacer 12 can not only cover the side edge of the battery cell 21 located at one end among the multiple battery cells 21 facing the integrated busbar 22, but also cover at least a portion of the first insulating member 212 arranged on the side of the battery cell 21 located at one end among the multiple battery cells 21 facing the integrated busbar 22. Such a design can not only increase the range of the insulating spacer 12 covering the side of the battery cell 21 located at one end among the multiple battery cells 21 facing the integrated busbar 22, thereby increasing the electrical clearance and creepage distance between the battery cell 21 located at one end among the multiple battery cells 21 and the positive electrode 221 or the negative electrode 222 of the corresponding electrically connected integrated busbar 22, and then further avoid the risk of insulation failure of the battery module 2 and the battery pack, thereby further improving the electrical safety of the battery module 2 and the battery pack, and further avoid the risk of insulation failure of the battery module 2 and the battery pack with the help of the interlaced part of the insulating spacer 12 and the first insulating member 212, thereby further improving the electrical safety of the battery module 2 and the battery pack.
[0034] like Figure 1 As shown, in one embodiment of the present invention, in a direction perpendicular to the direction of the cover body 11 from toward the battery cell 21 to away from the battery cell 21 , the insulating spacer 12 may extend from one side of the cover body 11 to the other side of the cover body 11 .
[0035] Such a design can improve the structural strength of the insulating spacer 12 on the cover body 11 .
[0036] However, in the direction perpendicular to the direction of the cover body 11 toward the battery cell 21 to away from the battery cell 21, the insulating spacer 12 is not limited to extending from one side of the cover body 11 to the other side of the cover body 11. For example, in the direction perpendicular to the direction of the cover body 11 toward the battery cell 21 to away from the battery cell 21, the insulating spacer 12 may also extend from one side of the cover body 11 to a preset position of the cover body 11. This is because the positive electrode 221 or the negative electrode 222 of the integrated busbar 22 will not be opposite to the entirety of the corresponding electrically connected battery cell 21, but may be opposite to a portion of the corresponding electrically connected battery cell 21. Therefore, it is sufficient that the insulating spacer 12 can be arranged between the battery cell 21 located at one end of the multiple battery cells 21 and the positive electrode 221 or the negative electrode 222 of the integrated busbar 22 of the corresponding electrically connected battery module 2.
[0037] Optionally, the insulating spacer 12 is in the shape of an elongated plate, the cover body 11 is in the shape of a plate, the insulating spacer 12 is arranged on a side of the cover body 11 adjacent to the battery cell 21 , and protrudes relative to a side of the cover body 11 adjacent to the battery cell 21 .
[0038] In this way, when the end cover structure 1 is assembled to the battery module 2, the side of the cover body 11 adjacent to the battery cell 21 is adjacent to the battery cell 21 at one end of the multiple battery cells 21 in sequence away from the other battery cells 21, and the insulating spacer 12 protruding relative to the side of the cover body 11 adjacent to the battery cell 21 extends between the battery cell 21 at one end of the multiple battery cells 21 and the positive electrode 221 or the negative electrode 222 of the integrated busbar 22 of the corresponding electrically connected battery module 2.
[0039] In an embodiment of the present invention, the thickness of the insulating spacer 12 may be 1 mm-2 mm.
[0040] Optionally, the insulating spacer 12 may be in contact with the integrated busbar 22 .
[0041] Optionally, there may be a gap between the insulating spacer 12 and a side of the battery cell 21 located at one end of the plurality of battery cells 21 that faces the integrated busbar 22 .
[0042] Optionally, the gap between the insulating spacer 12 and the first insulating member 212 may be 0.3 mm.
[0043] Optionally, the thickness of the first insulating member 212 may be 0.35 mm-0.75 mm.
[0044] Optionally, the first insulating member 212 may be in a sheet shape.
[0045] Optionally, the first insulating member 212 may include a PC insulating sheet.
[0046] Optionally, the first insulating member 212 may be bonded to a side of the housing 211 of the battery cell 21 that faces the integrated busbar 22 .
[0047] Optionally, the insulating spacer 12 is detachably connected to the cover body 11 .
[0048] In an embodiment of the present invention, the cover body 11 may be an insulating cover body 11 .
[0049] Compared with the prior art, such a design does not require a second insulating sheet to be disposed on the surface of the insulating cover body 11 adjacent to the battery cell 21. Eliminating the provision of the second insulating sheet on the surface of the insulating cover body 11 adjacent to the battery cell 21 can further reduce the materials and processing steps of the battery module 2 and the battery pack, thereby further reducing the production and assembly complexity of the battery module 2 and the battery pack, and further improving the integration of the battery module 2 and the battery pack.
[0050] Optionally, the insulation cover body 11 may be made of an insulating material.
[0051] like Figure 1As shown, in one embodiment of the present invention, a surface of the insulation cover body 11 adjacent to the battery cell 21 may be provided with a connection structure 13 , and the insulation cover body 11 is connected to the adjacent battery cell 21 via the connection structure 13 .
[0052] Optionally, there may be a plurality of connection structures 13 , and the plurality of connection structures 13 are spaced apart in a direction perpendicular to a direction of the insulation cover body 11 from toward the battery cell 21 to away from the battery cell 21 .
[0053] Such a design can enable the insulation cover body 11 to be connected to the adjacent battery cells 21 through the multiple connection structures 13 , thereby increasing the stability of the connection between the insulation cover body 11 and the adjacent battery cells 21 .
[0054] In an embodiment of the present invention, the connection structure 13 may include an adhesive component, and the adhesive component is used to bond the insulation cover body 11 to the adjacent battery cell 21 .
[0055] Optionally, the bonding member may include an adhesive tape.
[0056] An embodiment of the present invention also provides a battery module 2, including an integrated busbar 22, a plurality of battery cells 21 and an end cover structure 1 as provided in the present invention, wherein the plurality of battery cells 21 are arranged in sequence, the integrated busbar 22 is disposed on a side of the plurality of battery cells 21 having a pole, for electrically connecting the plurality of battery cells 21, and the end cover structure 1 is disposed on a side of a battery cell 21 located at one end of the plurality of battery cells 21, away from the remaining battery cells 21.
[0057] The battery module 2 provided in the embodiment of the utility model can avoid the risk of insulation failure of the battery module 2 and the battery pack by means of the end cover structure 1 of the battery module 2 provided in the embodiment of the utility model, thereby improving the electrical safety of the battery module 2 and the battery pack, and can also reduce the materials and processing steps of the battery module 2 and the battery pack, thereby reducing the production and assembly complexity of the battery module 2 and the battery pack, and improving the integration of the battery module 2 and the battery pack.
[0058] Optionally, the number of end cap structures 1 may be two, one of the two end cap structures 1 being disposed on a side of a battery cell 21 located at one end among the multiple battery cells 21 that is away from the remaining battery cells 21, and the other end cap structure 1 being disposed on a side of a battery cell 21 located at the other end among the multiple battery cells 21 that is away from the remaining battery cells 21.
[0059] like Figure 5 and Figure 6As shown, optionally, the positive electrode 221 of the integrated busbar 22 can be connected to one of the two end cover structures 1 via a first fixing bolt 23, and the negative electrode 222 of the integrated busbar 22 can be connected to the other of the two end cover structures 1 via a first fixing bolt 23.
[0060] like Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment of the present invention, a portion of the battery cell 21 facing the integrated busbar 22 may be provided with a first insulating member 212 .
[0061] That is, the first insulating member 212 covers a portion of the battery cell 21 facing the integrated busbar 22 , and is used to insulate the integrated busbar 22 from the side of the battery cell 21 facing the integrated busbar 22 .
[0062] like Figure 5 and Figure 6 As shown, the battery core 21 may be covered with an insulating film layer 213 in the circumferential direction.
[0063] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, optionally, the battery module 2 may further include a fastener 25, which is disposed around the plurality of battery cells 21 and the end caps, and is used to fasten the plurality of battery cells 21 and the end caps.
[0064] Optionally, the end cover may be provided with a slot 26 for the fastener 25 to be snapped into and connected with.
[0065] Alternatively, the fastener 25 may include a binding band.
[0066] The embodiment of the utility model further provides a battery pack, comprising the battery module 2 provided in the embodiment of the utility model.
[0067] The battery pack provided by the embodiment of the utility model can avoid the risk of insulation failure of the battery module 2 and the battery pack with the help of the battery module 2 provided by the embodiment of the utility model, thereby improving the electrical safety of the battery module 2 and the battery pack, and can also reduce the materials and processing steps of the battery module 2 and the battery pack, thereby reducing the production and assembly complexity of the battery module 2 and the battery pack, and improving the integration of the battery module 2 and the battery pack.
[0068] like Figure 5 As shown, optionally, one of the two end cover structures 1 can be connected to the battery pack via a second fixing bolt 24 , and the negative electrode 222 of the integrated busbar 22 can be connected to the other end cover structure 1 of the two end cover structures 1 via a second fixing bolt 24 .
[0069] Optionally, an insulating protective sleeve may be provided outside the head of the second fixing bolt 24 .
[0070] In summary, the end cover structure 1 of the battery module 2, the battery module 2 and the battery pack provided by the embodiment of the utility model can avoid the risk of insulation failure of the battery module 2 and the battery pack, thereby improving the electrical safety of the battery module 2 and the battery pack, and can also reduce the materials and processing steps of the battery module 2 and the battery pack, thereby reducing the production and assembly complexity of the battery module 2 and the battery pack, and improving the integration of the battery module 2 and the battery pack.
[0071] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.
Claims
1. An end cap structure of a battery module, comprising a cap body, wherein the cap body is used to be arranged on a side of a battery cell at one end of a plurality of battery cells arranged in sequence in the battery module, away from the other battery cells, and characterized in that: The cover body is provided with an insulating spacer, which is used to be arranged between the battery cell located at one end of the plurality of battery cells and the positive electrode or negative electrode of the integrated busbar of the corresponding electrically connected battery module when the end cover structure is assembled to the battery module.
2. The end cover structure of the battery module according to claim 1, characterized in that: The insulating spacer is used to cover the edge of one side of the battery cell located at one end among the multiple battery cells facing the integrated busbar when the end cover structure is assembled to the battery module, and to cover at least a portion of the first insulating member provided on the side of the battery cell located at one end among the multiple battery cells facing the integrated busbar.
3. The end cover structure of the battery module according to claim 2, characterized in that: In a direction perpendicular to a direction of the cover body from toward the battery core to away from the battery core, the insulating spacer extends from one side of the cover body to the other side of the cover body.
4. The end cover structure of the battery module according to claim 1, characterized in that: The thickness of the insulating spacer is 1 mm-2 mm.
5. The end cover structure of the battery module according to claim 1, characterized in that: The cover body is an insulating cover body.
6. The end cover structure of the battery module according to claim 5, characterized in that: A connection structure is provided on a surface of the insulation cover body adjacent to the battery cell, and the insulation cover body is connected to the adjacent battery cell through the connection structure.
7. The end cover structure of the battery module according to claim 6, characterized in that: The connection structure includes a bonding component, and the bonding component is used to bond the insulation cover body to the adjacent battery core.
8. A battery module, characterized in that: The battery module comprises an integrated busbar, a plurality of battery cells and an end cover structure as claimed in any one of claims 1 to 7, wherein the plurality of battery cells are arranged in sequence, the integrated busbar is arranged on a side having a pole of the plurality of battery cells for electrically connecting the plurality of battery cells, and the end cover structure is arranged on a side of the battery cell at one end of the plurality of battery cells that is away from the other battery cells.
9. The battery module according to claim 8, characterized in that: A first insulating member is provided on a portion of the battery cell facing the integrated busbar.
10. A battery pack, characterized in that: Comprising the battery module as claimed in claim 8 or 9.