Battery cell module and vehicle

Abstract

The utility model provides a battery cell module and a vehicle, and relates to the technical field of battery cells. The battery cell module provided by the utility model comprises two end plates and a plurality of battery cell units, and the plurality of battery cell units are sequentially stacked in a first direction; the two end plates abut against the two ends, in the first direction, of the multiple stacked battery cell units respectively and apply pre-tightening force to the multiple battery cell units. A busbar is arranged on the side of the plurality of battery cell units along the first direction, and the busbar is sequentially connected in series with the plurality of battery cell units; the two end plates are respectively provided with a positive output electrode and a negative output electrode, and two ends of the busbar are respectively connected with the positive output electrode and the negative output electrode. The pre-tightening force is applied to the battery cell units through the end plates, the tolerance influence of the size of the battery cell units can be reduced, a larger space does not need to be reserved in an interval for placing the battery cell units, the grouping convenience of the battery cell units is improved, in addition, the positive output stage and the negative output stage are arranged on the end plates, the energy output of the battery cell units is facilitated, and the energy utilization rate of the battery cell units is improved. And the grouping efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery cells, in particular to a battery cell module and a vehicle. BACKGROUND

[0002] In recent years, the electric vehicle industry has developed rapidly. As an important part of electric vehicles, the battery cell module not only relates to the performance and safety of electric vehicles, but also directly affects the market competitiveness and sustainable development of electric vehicles.

[0003] In the related art, the current battery cell module is usually formed by bonding the battery cell and the box body together through structural heat-conducting adhesive, thereby forming an integrated assembly structure.

[0004] However, after the battery cells are stacked and assembled, they are directly dropped into the box body. Due to the tolerance of the size of the battery cells, a larger space needs to be reserved for the interval where the assembled battery cells are placed in the box body, which is inconvenient and inefficient. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the present application provides a battery cell module and a vehicle to improve the assembly convenience and efficiency of the battery cell module.

[0006] To achieve the above-mentioned purpose, the present application provides a battery cell module and a vehicle, which adopts the following technical solutions:

[0007] In a first aspect, the present application provides a battery cell module, which comprises two end plates and a plurality of battery cell units. The plurality of battery cell units are sequentially stacked along a first direction. The two end plates abut the two ends of the plurality of stacked battery cell units along the first direction, and exert a pre-tightening force on the plurality of battery cell units.

[0008] A busbar is provided on the side of the plurality of battery cell units along the first direction. The busbar sequentially connects the plurality of battery cell units in series. The two end plates are respectively provided with a positive output pole and a negative output pole. The two ends of the busbar are respectively connected to the positive output pole and the negative output pole.

[0009] In a possible implementation manner, the positive output pole and the negative output pole are located at the same end of the length direction of the two end plates. The positive output pole and the negative output pole are both arranged on the side of the end plate away from the battery cell units.

[0010] In a possible implementation manner, the battery cell module further comprises a top plate and a cold plate. The top plate is bonded to the top of the plurality of battery cell units, and the cold plate is bonded to the bottom of the plurality of battery cell units. And / or,

[0011] The two ends of the top plate along the first direction are respectively welded with the top side edges of the two end plates; and the two ends of the cold plate along the first direction are respectively welded with the bottom side edges of the two end plates.

[0012] In a possible implementation, the battery cell module provided in the present application is configured to be installed in a box of a battery pack, and the top of the end plate is provided with a plurality of connecting holes, and the end plate is penetrated through the connecting holes by fasteners, so that the battery cell module is connected with the box.

[0013] In a possible implementation, the battery cell module provided in the present application further comprises a buffer, which is arranged between the end plate and the battery cell unit; and the buffer is any one of a foam and an aerogel sheet.

[0014] In a possible implementation, the battery cell module provided in the present application further comprises a flexible circuit board, which is located on the same side of the battery cell unit as the bus bar; the bus bar is connected with the flexible circuit board, the flexible circuit board is attached to the side surface of the battery cell unit; and the flexible circuit board is configured to collect voltage and temperature information of the battery cell unit.

[0015] In a possible implementation, the battery cell module provided in the present application further comprises a protective plate, which is arranged on the side of the flexible circuit board away from the battery cell unit, and the two ends of the protective plate along the first direction are respectively connected with the two end plates.

[0016] In a possible implementation, the battery cell module provided in the present application is configured to be installed in a box of a battery pack, and the top of the end plate is provided with a plurality of connecting holes, and the end plate is penetrated through the connecting holes by fasteners, so that the battery cell module is connected with the box.

[0017] In a possible implementation, the battery cell module provided in the present application is configured to be installed in a box of a battery pack, and the top of the end plate is provided with a plurality of connecting holes, and the end plate is penetrated through the connecting holes by fasteners, so that the battery cell module is connected with the box.

[0018] In a possible implementation, the battery cell module provided in the present application is configured to be installed in a box of a battery pack, and the top of the end plate is provided with a plurality of connecting holes, and the end plate is penetrated through the connecting holes by fasteners, so that the battery cell module is connected with the box.

[0019] The battery cell module provided by the application comprises two end plates and a plurality of battery cell units, the plurality of battery cell units are sequentially stacked along a first direction, the two end plates abut against two ends of the plurality of battery cell units stacked along the first direction and apply a pre-tightening force to the plurality of battery cell units, and busbars are arranged on the sides of the plurality of battery cell units along the first direction, the busbars sequentially connect the plurality of battery cell units in series, the two end plates are respectively provided with a positive output pole and a negative output pole, and the two ends of the busbars are connected with the positive output pole and the negative output pole. The pre-tightening force applied to the battery cell units by the end plates can reduce the tolerance influence of the size of the battery cell units, without the need to reserve a larger space for the interval where the battery cell units are placed, thereby improving the grouping convenience of the battery cell units. In addition, the positive output stage and the negative output stage are arranged on the end plates, which facilitates the energy output of the battery cell units and further improves the grouping efficiency.

[0020] In addition to the technical problems solved by the embodiments of the application described above, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, other technical problems solved by the technical solutions provided by the application, other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specific embodiments of the application will be described in detail below with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only used to illustrate and explain the application, and the application is not limited to the specific embodiments described below.

[0022] Figure 1 A structural schematic diagram of a battery cell module provided by an embodiment of the application is shown in the figure.

[0023] Figure 2 A structural schematic diagram of a battery cell module provided by an embodiment of the application is shown in the figure. Figure 1 A structural schematic diagram of a battery cell module provided by an embodiment of the application is shown in the figure.

[0024] Figure 3 A structural schematic diagram of a battery cell module provided by an embodiment of the application is shown in the figure. Figure 2 A structural schematic diagram of a battery cell module provided by an embodiment of the application is shown in the figure.

[0025] Explanation of reference signs:

[0026] 10, first structural adhesive layer;

[0027] 20, second structural adhesive layer;

[0028] 30, buffer;

[0029] 100, end plate;

[0030] 101, lifting hole;

[0031] 102, connecting hole;

[0032] 200, cell unit;

[0033] 300, busbar;

[0034] 400, positive output pole;

[0035] 500, negative output pole;

[0036] 600, top plate;

[0037] 610, positioning strip;

[0038] 700, cold plate;

[0039] 710, liquid inlet joint;

[0040] 720, liquid outlet joint;

[0041] 800, flexible circuit board;

[0042] 900, protection plate.

[0043] The specific embodiments of the present application have been shown in the above-described drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme in the embodiments of the present application will be described in more detail hereinafter by combining the drawings in the preferred embodiments of the present application. In the drawings, the same or similar notations represent the same or similar parts or parts having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, but not all the embodiments. The embodiments described hereinafter by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts, fall within the scope of protection of the present application. The embodiments of the present application will be described in detail hereinafter by combining the drawings.

[0045] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood in a broad sense, for example, can be fixed connection, can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specified precisely and specifically.

[0048] The terms "first", "second", "third", "fourth" and the like in the description of the present application and claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a particular order or sequence.

[0049] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0050] As described in the background, in recent years, the electric vehicle industry has developed rapidly, and the electric cell module as an important part of the electric vehicle not only relates to the performance and safety of the electric vehicle, but also directly affects the market competitiveness and sustainable development of the electric vehicle. Upstream electric cells and power battery manufacturing have become a global hot industry, and the market value of power battery PACK, as the core technology of power battery packaging, is also increasing.

[0051] The current power battery PACK, also known as power battery pack, and the group technology is very hot for direct integration of the battery pack technology (Cell to PACK, CTP technology), that is, using CTP technology, the electric cells and the PACK box are bonded together through the structure of the heat-conducting adhesive, thereby forming an integrated structure,

[0052] However, in the general CTP scheme, the electric cells are stacked into a module, and the module is directly dropped into the PACK box without pre-tightening force. Due to the tolerance of the size of the electric cells, a larger space needs to be reserved for the PACK to place the module, which is inconvenient and inefficient for grouping.

[0053] At the same time, the battery cell has no pre-tightening force in the early stage, which leads to the risk of life and performance decline of the whole battery cell. At the same time, the structural adhesive bonds the battery cell and the box together. If the battery cell fails, the whole battery PACK will be unable to use due to the failure of the battery cell. Since the battery cell and the PACK are integrated, all battery PACKs will be directly scrapped, resulting in high after-sales costs.

[0054] Based on the above technical problems, the embodiment of the present application provides a battery cell module and a vehicle. In the technical scheme, the battery cell module includes two end plates and a plurality of battery cell units. The plurality of battery cell units are sequentially stacked along a first direction. The two end plates abut the two ends of the plurality of battery cell units stacked along the first direction and apply a pre-tightening force to the plurality of battery cell units. The plurality of battery cell units are provided with busbars along the side of the first direction. The busbars sequentially connect the plurality of battery cell units in series. The two end plates are respectively provided with positive and negative output poles. The two ends of the busbars are respectively connected to the positive and negative output poles. By applying a pre-tightening force to the battery cell units by the end plates, the tolerance of the size of the battery cell units can be reduced. There is no need to reserve more space for the interval where the battery cell units are placed. The grouping convenience of the battery cell units is improved. In addition, by arranging the positive and negative output levels on the end plates, the energy output of the battery cell units is facilitated, and the grouping efficiency is further improved.

[0055] In addition, the performance of the battery cell module can be improved, the service life can be prolonged, and the maintenance cost of the battery cell module can be reduced.

[0056] It should be noted that, Figures 1 to 3 The specific structure of the remaining components in the battery cell module and the vehicle is not limited to Figures 1 to 3 the example.

[0057] The present application will be described in detail below in conjunction with the drawings and specific embodiments:

[0058] Referring to Figure 1 , Figure 2 and Figure 3 , the battery cell module provided by the embodiment of the present application includes two end plates 100 and a plurality of battery cell units 200. The plurality of battery cell units 200 are sequentially stacked along a first direction. The first direction is shown in Figure 2The two end plates 100 are respectively abutted against two ends of the plurality of stacked battery cell units 200 along the first direction, and pre-tightening force is applied to the plurality of battery cell units 200; here, the pre-tightening force can be 2800N-3200N, so as to compress the battery cell units 200. The plurality of battery cell units 200 are provided with busbars 300 along the side direction of the first direction, and the busbars 300 are sequentially connected in series with the plurality of battery cell units 200; the two end plates 100 are respectively provided with positive output poles 400 and negative output poles 500, and the two ends of the busbars 300 are respectively connected with the positive output poles 400 and the negative output poles 500.

[0059] It should be noted that, Figure 2 The positive output stage and the negative output stage shown in the figure can be interchanged, and the arrangement of the positive output stage and the negative output stage is related to the direction of the busbar 300 and the arrangement direction of the battery cell unit 200, which is the prior art in the field, and the embodiments of the present application do not limit this.

[0060] In the above embodiment, the pre-tightening force is applied to the battery cell unit 200 by the end plate 100, which can reduce the influence of the tolerance of the size of the battery cell unit 200, and does not need to reserve a larger space for the interval of the placed battery cell unit 200. Here, it should be noted that each battery cell unit 200 has a certain size error during manufacturing, but when a plurality of battery cell units 200 are stacked together, the size error will greatly affect the overall size.

[0061] After the pre-tightening force is applied to the stacked battery cell units 200, the size error between the adjacent two battery cell units 200 can be compressed, the influence of the size error on the overall size is reduced, and the grouping convenience of the battery cell units 200 is improved.

[0062] In addition, by arranging the positive output stage and the negative output stage on the end plate 100, the energy output of the battery cell unit 200 is facilitated, and the grouping efficiency is further improved.

[0063] In specific implementation, the battery cell unit 200 is a blade battery cell. The design feature of the blade battery cell is its flat and long strip shape. This shape is similar to a blade, hence the name. The length of the blade battery cell can vary from a few hundred millimeters to a few meters, and the thickness is relatively thin. This design allows the battery to accommodate more battery cells in a limited space, thereby improving the energy density.

[0064] In a possible implementation, the positive output pole 400 and the negative output pole 500 are located at the same end of the two end plates 100 in the length direction, and the positive output pole 400 and the negative output pole 500 are arranged on the side of the end plate 100 away from the battery cell unit 200. In this way, the length of the busbar 300 extending towards the positive output stage or the negative output stage can be reduced, thereby reducing the cost. By arranging the positive output pole 400 and the negative output pole 500 on the side of the end plate 100 away from the battery cell unit 200, the battery cell unit 200 can be avoided, so as to facilitate the full use of the space outside the end plate 100, and the application of the pre-tightening force is facilitated.

[0065] In a possible implementation, please continue to refer to Figure 1 and Figure 2 The battery cell module further includes a top plate 600 and a cold plate 700, the top plate 600 is bonded to the top of the plurality of battery cell units 200, and the cold plate 700 is bonded to the bottom of the plurality of battery cell units 200.

[0066] In a specific implementation, a first structural adhesive layer 10 is arranged between the top plate 600 and the top of the battery cell unit 200, and the first structural adhesive layer 10 is used to bond the top plate 600 and the battery cell unit 200. A second structural adhesive layer 20 is arranged between the cold plate 700 and the bottom of the battery cell unit 200, and the second structural adhesive layer 20 is used to bond the cold plate 700 and the battery cell unit 200. The structural adhesive has high strength and can withstand large loads, which helps to improve the connection stability.

[0067] In another implementation, the top plate 600 is an aluminum plate, which has good heat dissipation performance and can effectively dissipate heat of the battery cell unit 200, and the aluminum plate has high plasticity and simple manufacturing process. In order to further improve the installation stability of the top plate 600, the top plate 600 is provided with a positioning strip 610 at both ends in the first direction, and the positioning strip 610 is clamped on the end plate 100, and the positioning strip 610 extends along a second direction, wherein the second direction is perpendicular to the first direction, and the second direction is Figure 2 the Y direction in FIG. 6.

[0068] In addition, both ends of the top plate 600 in the first direction are welded to the top side edges of the two end plates 100, and both ends of the cold plate 700 in the first direction are welded to the bottom side edges of the two end plates 100. The connection stability can be further improved.

[0069] In a possible implementation, the cold plate 700 is provided with a liquid inlet connector 710 and a liquid outlet connector 720 on the side facing the top plate 600, one of the liquid inlet connector 710 and the liquid outlet connector 720 is located on the side of the cold plate 700 close to the positive output pole 400, and the other of the liquid inlet connector 710 and the liquid outlet connector 720 is located on the side of the cold plate 700 close to the negative output pole 500.

[0070] In the above embodiment, through the above setting mode, it can be understood that the positive output stage, the negative output stage, the liquid inlet joint 710 and the liquid outlet joint 720 are arranged in pairs of positions concentrated on each other, and when connected with other components, a plurality of components can be connected at the same operation point, the connection efficiency can be improved, and multiple operation points need not to be found. Space can also be fully utilized.

[0071] In addition, by connecting the cold plate 700 with the battery cell module, the design of the cold plate 700 in the PACK is no longer needed, and the integration of the battery cell module is improved.

[0072] In a possible implementation, the buffer 30 is arranged between the end plate 100 and the battery cell unit 200; the buffer 30 is any one of a foam and an aerogel sheet.

[0073] In the above embodiment, when the vehicle collides or vibrates, the buffer 30 can effectively reduce the impact of the collision on the battery cell unit 200, and protect the battery cell unit 200 from being extruded. In order to further improve the safety of the battery cell unit 200, the buffer 30 between the end plate 100 and the battery cell unit 200 can be provided in multiple.

[0074] Referring to Figure 3 As shown, the buffer 30 is also arranged between the two adjacent battery cell units 200, so as to further improve the safety of the battery cell unit 200. Of course, the buffer 30 can also have viscosity, which can improve the connection stability between the battery cell units 200.

[0075] In a possible implementation, the battery cell module further comprises a flexible circuit board 800, the flexible circuit board 800 is located on the same side of the battery cell unit 200 as the bus bar 300; the bus bar 300 is connected with the flexible circuit board 800, the flexible circuit board 800 is attached to the side surface of the battery cell unit 200; the flexible circuit board 800 is configured to collect voltage and temperature information of the battery cell unit 200.

[0076] In the above embodiment, the voltage and temperature information of the battery cell unit 200 can be collected in time, and the battery cell unit 200 is facilitated to be regulated and controlled. Through the above setting mode, the space on the side surface of the battery cell unit 200 can be fully utilized, and the grouping efficiency of the battery cell module is improved.

[0077] In a possible implementation, the battery cell module further comprises a protective plate 900, the protective plate 900 is arranged on the side of the flexible circuit board 800 away from the battery cell unit 200, and the two ends of the protective plate 900 along the first direction are respectively connected with the two end plates 100.

[0078] In the above embodiment, the protection plate 900 can protect the busbar 300 and the flexible circuit board 800 from being collided by other components in the vehicle, thereby improving the safety of the busbar 300 and the flexible circuit board 800.

[0079] To further improve the safety of the protection plate 900, the side of the protection plate 900 away from the flexible circuit board 800 is also provided with a buffer 30, and here, the buffer 30 can be aerogel.

[0080] In a possible implementation, the side surface of each end plate 100 away from the battery cell 200 is provided with a lifting hole 101, and the battery cell module is configured to be inserted into the lifting hole 101 by an external device to carry the battery cell module.

[0081] In the above embodiment, the carrying of the battery cell module is facilitated, and here, the external device can be a crane, and the present application does not make too many limitations on this. When the battery cell module needs to be disassembled for maintenance, the battery cell module can be taken out as a whole through the lifting hole 101, without damaging the overall structure, and the maintenance is good.

[0082] In a possible implementation, the battery cell module is configured to be installed in a box of a battery pack, and the top of the end plate 100 is provided with a plurality of connecting holes 102, and the end plate 100 is arranged in the connecting hole 102 through a fastener, so that the battery cell module is connected with the box.

[0083] Here, the fastener can be a fastening bolt, and the connection is simple, easy to operate, and low in cost.

[0084] In a possible implementation, the present application also provides a vehicle comprising a battery pack and the above-mentioned battery cell module arranged in the battery pack. The specific structure of the battery cell module has been described above, and will not be repeated here. The vehicle provided with the above-mentioned battery cell module can improve the grouping of the battery cell module.

[0085] The implementation principle of the battery cell module and the vehicle provided in the embodiments of the present application is as follows: the battery cell module provided in the embodiments of the present application comprises two end plates 100 and a plurality of battery cell units 200, the plurality of battery cell units 200 are sequentially stacked along a first direction; the two end plates 100 are respectively abutted against two ends of the plurality of battery cell units 200 stacked along the first direction, and the plurality of battery cell units 200 are subjected to a pre-tightening force; a busbar 300 is arranged on the side of the plurality of battery cell units 200 along the first direction, and the busbar 300 sequentially connects the plurality of battery cell units 200 in series; a positive output pole 400 and a negative output pole 500 are respectively arranged on the two end plates 100, and the two ends of the busbar 300 are respectively connected with the positive output pole 400 and the negative output pole 500. By applying the pre-tightening force to the battery cell units 200 through the end plates 100, the tolerance influence of the size of the battery cell units 200 can be reduced, it is not necessary to reserve a larger space for the interval where the battery cell units 200 are placed, the grouping convenience of the battery cell units 200 is improved, in addition, by arranging the positive output stage and the negative output stage on the end plates 100, the energy output of the battery cell units 200 is facilitated, and the grouping efficiency is further improved.

[0086] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein.

[0087] It is intended to include all such variations and modifications in connection with the principles of the present application as can be desired by the skilled person to adapt the present application for particular applications. The description and examples are intended to be illustrative, and not limiting of the true scope of the present application, which is set forth in the following claims.

[0088] It should be understood that the present application is not limited to the precise construction here described and illustrated in the drawings, and various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The scope of the present application is limited only by the claims that follow.

Claims

1. An electric cell module, characterized by comprising: The battery cell module comprises two end plates (100) and a plurality of battery cell units (200), the plurality of battery cell units (200) are sequentially stacked along a first direction; the two end plates (100) are respectively abutted to both ends of the plurality of battery cell units (200) along the first direction, and the plurality of battery cell units (200) are subjected to a pre-tightening force. The plurality of battery cell units (200) are provided with busbars (300) along the side of the first direction, the busbars (300) sequentially connect the plurality of battery cell units (200) in series; the two end plates (100) are respectively provided with a positive output pole (400) and a negative output pole (500), and the two ends of the busbars (300) are respectively connected with the positive output pole (400) and the negative output pole (500).

2. The battery cell module of claim 1, wherein, The positive output pole (400) and the negative output pole (500) are respectively located at the same end of the length direction of the two end plates (100); the positive output pole (400) and the negative output pole (500) are both arranged towards the side of the end plate (100) away from the battery cell unit (200).

3. The battery cell module of claim 1, wherein, The battery cell module further comprises a top plate (600) and a cold plate (700), the top plate (600) is bonded to the top of the plurality of battery cell units (200), and the cold plate (700) is bonded to the bottom of the plurality of battery cell units (200); and / or, The two ends of the top plate (600) along the first direction are respectively welded with the top side edges of the two end plates (100); the two ends of the cold plate (700) along the first direction are respectively welded with the bottom side edges of the two end plates (100).

4. The battery cell module of claim 3, wherein, The cold plate (700) is provided with a liquid inlet connector (710) and a liquid outlet connector (720) on the side facing the top plate (600), one of the liquid inlet connector (710) and the liquid outlet connector (720) is located on the side of the cold plate (700) close to the positive output pole (400), and the other of the liquid inlet connector (710) and the liquid outlet connector (720) is located on the side of the cold plate (700) close to the negative output pole (500).

5. The battery cell module of any one of claims 1-4, wherein, A buffer (30) is further included, the buffer (30) is arranged between the end plate (100) and the battery cell unit (200); the buffer (30) is any one of a foam and an aerogel sheet.

6. The battery cell module of any one of claims 1-4, wherein, The battery cell module further comprises a flexible circuit board (800), the flexible circuit board (800) is located on the same side of the battery cell unit (200) as the busbar (300); the busbar (300) is connected with the flexible circuit board (800), the flexible circuit board (800) is attached to the side surface of the battery cell unit (200); the flexible circuit board (800) is configured to collect voltage and temperature information of the battery cell unit (200).

7. The battery cell module of claim 6, wherein, The battery cell module further comprises a protection plate (900) arranged on the side of the flexible circuit board (800) away from the battery cell unit (200), and the two ends of the protection plate (900) along the first direction are connected with the two end plates (100) respectively.

8. The battery cell module of any one of claims 1-4, wherein, The side surface of each end plate (100) away from the battery cell unit (200) is provided with a lifting hole (101), and the battery cell module is configured to be connected with the lifting hole (101) by an external device to carry the battery cell module.

9. The battery cell module of any one of claims 1-4, wherein, The battery cell module is configured to be installed in a box of a battery pack, and the top of the end plate (100) is provided with a plurality of connecting holes (102), and the end plate (100) is arranged in the connecting hole (102) through a fastener, so that the battery cell module is connected with the box.

10. A vehicle characterized by comprising: A battery pack is provided, and the battery pack is provided with the battery cell module according to any one of claims 1-9.

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