Battery cell module and battery pack

Abstract

The utility model discloses a battery cell module and a battery pack. The battery cell module comprises a plurality of battery cells and end plates, the battery cell module has a first direction, a plurality of battery cells are sequentially stacked along the first direction to form a battery cell group, and at least one end of the battery cell group along the first direction is provided with an end plate; the end plate comprises an abutting plate and a supporting plate; the abutting plate abuts against the battery cell set, the supporting plate is arranged on the side, away from the battery cell set, of the abutting plate, a gap is at least partially formed between the abutting plate and the supporting plate, and the supporting plate is connected with the abutting plate; a supporting part is arranged on the surface of the side, close to the abutting plate, of the supporting plate, and the supporting part abuts against the abutting plate to support the abutting plate. Therefore, when the battery cell group is extruded by the end plate, the propping plate is supported by the supporting part of the supporting plate, so that relatively large supporting force is favorably provided for the propping plate, and the supporting force requirement of the battery cell group is met.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a cell module and a battery pack. Background Technology

[0002] With the rapid development of electric vehicles, the role of battery modules as the power source for electric vehicles is becoming increasingly prominent. A battery module includes two end plates and multiple cell arrays, with the cell arrays sandwiched between the two end plates.

[0003] However, the end plates in related technologies rely on their own material strength to provide support for the battery cell array, resulting in relatively weak support. Utility Model Content

[0004] This application aims to provide a cell module and battery pack that can solve the problem of weak support of the end plate in the prior art.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a battery cell module, comprising: a plurality of battery cells and an end plate; the battery cell module has a first direction, the plurality of battery cells are stacked sequentially along the first direction to form a battery cell group, and the end plate is provided at at least one end of the battery cell group along the first direction; the end plate includes an abutment plate and a support plate; the abutment plate abuts against the battery cell group, the support plate is disposed on the side of the abutment plate away from the battery cell group, the support plate is connected to the abutment plate, and at least a gap exists between the abutment plate and the support plate; a support portion is provided on the side surface of the support plate near the abutment plate, and the support portion abuts against the abutment plate to support the abutment plate.

[0007] Optionally, the support plate includes a support plate body and a support platform; the support platform is connected to the support plate body, one end of the support platform is connected to the side surface of the support plate body near the abutment plate, and the other end of the support platform is bent and extended toward the abutment plate to form the support portion.

[0008] Optionally, the support plate body has a hollow opening, and one end of the support platform is connected to the edge of the hollow opening.

[0009] Optionally, the support platform and the support plate body are integrally formed parts.

[0010] Optionally, at least a portion of the circumferential edge of the support plate bends and extends toward the abutment plate to form a connection portion, the connection portion being connected to the abutment plate.

[0011] Optionally, it also includes a strapping component; the strapping component is arranged around the end plate and the outer circumferential side of the cell assembly; the connecting portion has a limiting protrusion on the side away from the abutment plate, one end of the limiting protrusion is connected to the connecting portion, and the other end of the limiting protrusion extends in a direction away from the abutment plate, the limiting protrusion abuts against the strapping component to limit the strapping component.

[0012] Optionally, the circumferential edge of the support plate is chamfered at a position corresponding to the binding member, and the chamfer is used to guide the binding member.

[0013] Optionally, it further includes an insulating base and a busbar; the battery cell module has a second direction perpendicular to the first direction, the abutment plate has a mounting portion at one end along the second direction, and the insulating base is mounted on the mounting portion; the busbar is located on one side of the battery cell module along the second direction, the busbar is electrically connected to the battery cell module, and the end of the busbar is fixed to the insulating base.

[0014] Optionally, the insulating seat has at least two limiting portions on the side surface opposite to the mounting portion; a limiting space is formed between the at least two limiting portions, and the busbar is at least partially located within the limiting space, so as to limit the busbar through the limiting space.

[0015] Secondly, embodiments of this application propose a battery pack including the cell module described in the above embodiments.

[0016] In this embodiment, multiple battery cells are stacked sequentially along a first direction to form a battery cell assembly. At least one end of the battery cell assembly along the first direction is provided with an end plate. An abutment plate in the end plate abuts against the battery cell assembly. A support plate is located on the side of the abutment plate away from the battery cell assembly. The support plate is connected to the abutment plate, and at least a partial gap exists between the abutment plate and the support plate. The support portion of the support plate abuts against the abutment plate to support it. This allows the support portion of the support plate to support the abutment plate when the end plate presses against the battery cell assembly, providing greater support force to the abutment plate and thus meeting the support force requirements of the battery cell assembly.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of an end plate according to an embodiment of this application;

[0020] Figure 2 This is another schematic diagram of an end plate according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the abutment plate according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a support plate according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of an insulating base according to an embodiment of this application.

[0024] Figure label:

[0025] 1-Abutting plate; 11-Abutting plate body; 12-Mounting part; 13-Groove; 2-Supporting plate; 21-Supporting plate body; 22-Supporting platform; 23-Connecting part; 24-Hollow opening; 25-Limiting protrusion; 26-Chamfer; 3-Insulating seat; 31-Insulating seat body; 32-Limiting part; 33-Protrusion; X-First direction; Z-Second direction; Y-Third direction. Detailed Implementation

[0026] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] The battery cell module and battery pack provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0031] Optionally, such as Figure 1 As shown in Figure 5, this application embodiment proposes a battery cell module, including: a plurality of battery cells and an end plate; the battery cell module has a first direction X, the plurality of battery cells are stacked sequentially along the first direction X to form a battery cell group, and an end plate is provided at least one end of the battery cell group along the first direction X; the end plate includes an abutment plate 1 and a support plate 2; the abutment plate 1 abuts against the battery cell group, the support plate 2 is provided on the side of the abutment plate 1 away from the battery cell group, at least a gap exists between the abutment plate 1 and the support plate 2, and the support plate 2 is connected to the abutment plate 1; a support portion is provided on the side surface of the support plate 2 near the abutment plate 1, and the support portion abuts against the abutment plate 1 to support the abutment plate 1.

[0032] It should be noted that, as Figure 1 As shown, the direction from the support plate 2 to the abutment plate 1 is the first direction X.

[0033] In this embodiment, multiple battery cells are stacked sequentially along a first direction X to form a battery cell assembly. At least one end of the battery cell assembly along the first direction X is provided with an end plate. An abutment plate 1 in the end plate abuts against the battery cell assembly. A support plate 2 is located on the side of the abutment plate 1 away from the battery cell assembly. The support plate 2 is connected to the abutment plate 1, and at least a partial gap exists between the abutment plate 1 and the support plate 2. The support portion of the support plate 2 abuts against the abutment plate 1 to support it. This allows the support portion of the support plate 2 to support the abutment plate 1 when the end plate presses against the battery cell assembly, providing greater support force to the abutment plate 1 and thus meeting the support force requirements of the battery cell assembly. This improves the stability and safety of the battery cell module.

[0034] Furthermore, a gap is provided at least partially between the abutment plate 1 and the support plate 2. This allows the abutment plate 1 room to deform when the end plate presses against the battery cell assembly.

[0035] Specifically, such as Figure 2 As shown, the surface of the abutment plate 1 facing away from the support plate 2 is relatively flat. This side surface abuts against the battery cell in the battery cell assembly, which facilitates the contact between the abutment plate 1 and the battery cell, thereby uniformly transmitting the force of the abutment plate 1 to the battery cell.

[0036] It should be noted that the support part can be a boss structure, an L-shaped bending structure, or other hollow structures, etc., and the embodiments of this application are not limited to this.

[0037] Optionally, such as Figure 1 and Figure 4 As shown, the support plate 2 includes a support plate body 21 and a support platform 22; the support platform 22 is connected to the support plate body 21, one end of the support platform 22 is connected to the side surface of the support plate body 21 near the abutting plate 1, and the other end of the support platform 22 is bent and extended toward the abutting plate 1 to form a support portion.

[0038] In this embodiment, the support platform 22 is connected to the support plate body 21, with one end of the support platform 22 connected to the surface of the support plate body 21 near the abutment plate 1, and the other end of the support platform 22 bent and extended toward the abutment plate 1 to form a support portion. In this way, the end plate supports the abutment plate 1 through the support platform 22, resulting in a relatively simple structure and relatively easy processing.

[0039] Specifically, the support platform 22 includes a first support section and a second support section that are connected to each other. The first support section is connected to the support plate body 21; the second support section is connected to the first support section; the second support section has a support surface on the side facing the abutting plate 1, and the support surface abuts against the abutting plate 1.

[0040] It should be noted that the support platform 22 can be connected to the support plate body 21 by welding or riveting, and this embodiment of the application does not impose any restrictions.

[0041] Optionally, such as Figure 1 and Figure 4 As shown, the support plate body 21 has a hollow opening 24, and one end of the support platform 22 is connected to the edge of the hollow opening 24.

[0042] In this embodiment, a hollow opening 24 is provided in the support plate body 21, and one end of the support platform 22 is connected to the edge of the hollow opening 24. In this way, by utilizing the structural design of the hollow opening 24, the weight of the support plate 2 is effectively reduced, achieving lightweighting while meeting the support strength requirements.

[0043] Specifically, such as Figure 1 As shown, the perforated opening 24 is located in the middle of the support plate body 21, and support platforms 22 are provided on the edges of the perforated opening 24. This allows for the use of multiple support platforms 22 to achieve higher support strength, thereby meeting the support requirements.

[0044] In addition, such as Figure 4 As shown, the second support segments in the support platform 22 all extend toward the center of the hollow opening 24, which is beneficial to the connection between the second support segment and the abutment plate 1.

[0045] In some embodiments, multiple hollow openings 24 can be provided, with the multiple hollow openings 24 spaced apart. Each hollow opening 24 is provided with a support platform 22, thereby realizing multiple independent support surfaces, which improves the strength and stability of the overall structure.

[0046] Optionally, the support platform 22 and the support plate body 21 are integrally formed parts.

[0047] In this embodiment, the support platform 22 and the support plate body 21 are integrally formed. This enhances the connection strength between the support platform and the support plate body 21, improving the integrity and stability of the support plate 2 structure.

[0048] Specifically, traditional end plates are generally manufactured using methods such as plastic molding, aluminum extrusion, and die casting. These processing methods require specific molds, resulting in high production costs and long development cycles for end plates. In contrast, the end plate of this application can be manufactured using sheet metal processing, which, while meeting the support requirements, also helps to shorten manufacturing time and reduce production costs.

[0049] Optionally, such as Figure 1 and Figure 4 As shown, at least a portion of the circumferential edge of the support plate 2 is bent and extended toward the abutment plate 1 to form a connecting portion 23, which is connected to the abutment plate 1.

[0050] In this embodiment, at least a portion of the circumferential edge of the support plate 2 is bent and extended toward the abutment plate 1 to form a connecting portion 23, which is connected to the abutment plate 1. In this way, the support plate 2 is tightly connected to the abutment plate 1 through the connecting portion 23, thereby making the connection between the support plate 2 and the abutment plate 1 more stable and firm, effectively preventing the support plate 2 and the abutment plate 1 from loosening and falling off.

[0051] Specifically, such as Figure 4 As shown, connecting parts 23 can be provided on all circumferential edges of the support plate body 21, thereby achieving multiple independent connection surfaces between the support plate 2 and the abutment plate 1 through multiple connecting parts 23, thereby improving the connection strength between the support plate 2 and the abutment plate 1 and ensuring the strength and stability of the overall structure of the end plate.

[0052] Furthermore, the connecting part 23 includes a first connecting section and a second connecting section that are interconnected. The first connecting section is connected to the support plate body 21; the second connecting section is connected to the first connecting section; and the second connecting part has a connecting surface on the side facing the abutment plate 1, which is connected to the abutment plate 1. The connecting part 23 not only connects the abutment plate 1 and the support plate 2, but also supports the abutment plate 1 when the end plate squeezes the battery cell assembly. In this way, it works with the support part to provide greater support force for the abutment plate 1, thereby meeting the support force requirements of the battery cell assembly and improving the stability and safety of the battery cell module.

[0053] Optionally, such as Figure 1 and Figure 4 As shown, it also includes a strapping component; the strapping component is wrapped around the circumferential outer side of the end plate and the battery cell assembly; the connecting portion 23 has a limiting protrusion 25 on the side opposite to the abutment plate 1, one end of the limiting protrusion 25 is connected to the connecting portion 23, and the other end of the limiting protrusion 25 extends in the direction opposite to the abutment plate 1, and the limiting protrusion 25 abuts against the strapping component to limit the strapping component. Thus,

[0054] In this embodiment, the bundling member is wrapped around the circumferential outer side of the end plate and the cell assembly. A limiting protrusion 25 is provided on the side of the connecting portion 23 away from the abutment plate 1. One end of the limiting protrusion 25 is connected to the connecting portion 23, and the other end extends in the direction away from the abutment plate 1. The limiting protrusion 25 abuts against the bundling member to limit its movement. Thus, when the bundling member is installed on the end plate, the limiting protrusion 25 can be used to limit its movement, preventing it from falling off the short plate. Furthermore, the limiting protrusion 25 allows the bundling member to be precisely installed on the end plate, thereby improving the assembly efficiency of the battery module.

[0055] Specifically, such as Figure 1As shown, there are four limiting protrusions 25, which are symmetrically arranged on the support plate body 21. The top two protrusions are the first row of limiting protrusions 25, and the bottom two are the second row of limiting protrusions 25. A binding member is wrapped around the top of the first row of limiting protrusions 25, and a binding member is also wrapped between the second row of limiting protrusions 25 and the first row of limiting protrusions 25, so that the end plate and the cell assembly are tightly abutted.

[0056] It should be noted that the binding component can be a steel strap or a binding band, and this application embodiment does not impose any restrictions.

[0057] In some embodiments, such as Figure 1 As shown, the support plate 2 has a chamfer 26; the chamfer 26 is used to guide the strapping component. The chamfer 26 guides the strapping component when it is fitted onto the end plate. To improve the guiding effect of the end plate on the strapping component, the chamfer 26 can be set as a rounded corner. The limiting protrusion 25 is used to limit the strapping component. That is, when the strapping component is fitted onto the end plate from the chamfer 26 on the side surface of the support plate 2 away from the abutment plate 1, the limiting effect of the strapping component is achieved when the edge of the strapping component near the limiting protrusion 25 abuts against the end of the limiting protrusion 25.

[0058] In addition, the height of the limiting protrusion 25 can be set to be greater than the thickness of the binding member, so that the upper surface of the limiting protrusion 25 abuts against the binding member, thereby preventing the binding member from moving further along the second direction Z, causing the binding member to fall off the end plate.

[0059] Optionally, it also includes an insulating base 3 and a busbar; the battery cell module has a second direction Z perpendicular to the first direction X, and the abutment plate 1 is provided with a mounting part 12 at one end along the second direction Z, and the insulating base 3 is mounted on the mounting part 12; the busbar is provided on one side of the battery cell group along the second direction Z, the busbar is electrically connected to the battery cell group, and the end of the busbar is fixed on the insulating base 3.

[0060] It should be noted that the second direction Z is the height direction of the battery cell module, and the third direction Y is the width direction of the battery cell module.

[0061] In this embodiment, an mounting portion 12 is provided at one end of the abutment plate 1 along the second direction Z, and an insulating seat 3 is mounted on the mounting portion 12. A busbar is provided on one side of the battery cell assembly along the second direction Z, and the busbar is electrically connected to the battery cell assembly. The end of the busbar is fixed to the insulating seat 3. This facilitates the mounting and fixing of the insulating seat 3 through the mounting portion 12, thereby fixing the busbar to the insulating seat 3 and achieving insulation isolation between the busbar and the end plate.

[0062] Specifically, such as Figure 1 and Figure 3As shown, the abutment plate 1 includes an abutment plate body 11, and an installation part 12 is provided at one end of the abutment plate body 11 along the second direction Z. One end of the installation part 12 is connected to the abutment plate body 11, and the other end of the installation part 12 extends along the first direction X.

[0063] Specifically, such as Figure 1 and Figure 5 As shown, the insulating seat 3 includes an insulating seat body 31 and a protrusion 33; the protrusion 33 is provided on the side surface of the insulating seat body 31 facing the connecting part 23; the insulating seat body 31 is provided with at least two first mounting holes, and the connecting part 23 is provided with second mounting holes corresponding to the first mounting holes. After the fastener passes through the first mounting hole, it connects with the second mounting hole, thereby realizing the connection between the insulating seat 3 and the abutment plate 1.

[0064] In addition, such as Figure 1 and Figure 5 As shown, the abutment plate 1 has a groove 13 corresponding to the protrusion 33, the protrusion 33 has a groove 13, and the protrusion 33 has a clearance hole to accommodate bolts of different lengths; in addition, a step is provided on the outer surface of the protrusion 33, the step abuts against the support plate 2, which strengthens the support and increases the stability.

[0065] It should be noted that the main function of the insulating base 3 is to fix the positive and negative terminals of the battery cell assembly to the external circuit for charging / discharging. Furthermore, the insulating base 3 can be replaced with a standard insulator.

[0066] Optionally, such as Figure 1 and Figure 5 As shown, the insulating base 3 has at least two limiting parts 32 on the side surface opposite to the mounting part 12; a limiting space is formed between the at least two limiting parts 32, and the busbar is at least partially located in the limiting space so as to limit the busbar through the limiting space.

[0067] In this embodiment, at least two limiting portions 32 are provided on the side surface of the insulating base 3 facing away from the mounting portion 12; a limiting space is formed between the at least two limiting portions 32, and the busbar is at least partially located within the limiting space, so as to limit the busbar through the limiting space. In this way, the movement range of the busbar can be effectively limited by the two limiting portions 32, ensuring that the busbar is stably fixed in the predetermined position, preventing its accidental displacement or detachment, thereby improving the safety of the entire system.

[0068] Specifically, a recessed platform is provided between the two limiting parts 32, and a nut is provided in the recessed platform. The bolt passes through the busbar and is connected to the nut.

[0069] Optionally, embodiments of this application propose a battery pack including the cell module described in the above embodiments.

[0070] In this embodiment, multiple battery cells are stacked sequentially along a first direction X to form a battery cell assembly. At least one end of the battery cell assembly along the first direction X is provided with an end plate. An abutment plate 1 in the end plate abuts against the battery cell assembly. A support plate 2 is located on the side of the abutment plate 1 away from the battery cell assembly. The support plate 2 is connected to the abutment plate 1, and at least a partial gap exists between the abutment plate 1 and the support plate 2. The support portion of the support plate 2 abuts against the abutment plate 1 to support it. This allows the support portion of the support plate 2 to support the abutment plate 1 when the end plate presses against the battery cell assembly, providing greater support force to the abutment plate 1 and thus meeting the support force requirements of the battery cell assembly. This improves the stability and safety of the battery cell module.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery cell module, characterized in that, include: Multiple battery cells and end plates; The battery cell module has a first direction (X), and a plurality of battery cells are stacked sequentially along the first direction (X) to form a battery cell group. The battery cell group has an end plate at at least one end along the first direction (X). The end plate includes an abutment plate (1) and a support plate (2); the abutment plate (1) abuts against the battery cell assembly, the support plate (2) is disposed on the side of the abutment plate (1) away from the battery cell assembly, the support plate (2) is connected to the abutment plate (1), and there is at least a gap between the abutment plate (1) and the support plate (2); the support plate (2) has a support portion on the side surface near the abutment plate (1), and the support portion abuts against the abutment plate (1) to support the abutment plate (1).

2. The battery cell module according to claim 1, characterized in that, The support plate (2) includes a support plate body (21) and a support platform (22); The support platform (22) is connected to the support plate body (21). One end of the support platform (22) is connected to the side surface of the support plate body (21) near the abutment plate (1). The other end of the support platform (22) is bent and extended toward the abutment plate (1) to form the support portion.

3. The cell module according to claim 2, characterized in that, The support plate body (21) has a hollow opening (24), and one end of the support platform (22) is connected to the edge of the hollow opening (24).

4. The battery cell module according to claim 2, characterized in that, The support platform (22) and the support plate body (21) are integrally formed parts.

5. The cell module according to claim 1, characterized in that, At least a portion of the circumferential edge of the support plate (2) is bent toward the abutment plate (1) to form a connecting portion (23), which is connected to the abutment plate (1).

6. The cell module according to claim 5, characterized in that, It also includes strapping components; The strapping member is wrapped around the end plate and the outer circumferential side of the battery cell assembly; the connecting part (23) is provided with a limiting protrusion (25) on the side away from the abutment plate (1), one end of the limiting protrusion (25) is connected to the connecting part (23), and the other end of the limiting protrusion (25) extends in the direction away from the abutment plate (1). The limiting protrusion (25) abuts against the strapping member to limit the strapping member.

7. The cell module according to claim 6, characterized in that, The circumferential edge of the support plate (2) has a chamfer (26) at the corresponding position of the binding member, and the chamfer (26) is used to guide the binding member.

8. The battery cell module according to any one of claims 1-7, characterized in that, It also includes an insulating base (3) and a busbar; The battery cell module has a second direction (Z) perpendicular to the first direction. The abutment plate (1) is provided with a mounting part (12) at one end along the second direction (Z). The insulating seat (3) is mounted on the mounting part (12). The busbar is provided on one side of the battery cell group along the second direction. The busbar is electrically connected to the battery cell group. The end of the busbar is fixed on the insulating seat (3).

9. The cell module according to claim 8, characterized in that, The insulating base (3) has at least two limiting parts (32) on the side surface opposite to the mounting part (12); a limiting space is formed between the at least two limiting parts (32), and the busbar is at least partially located in the limiting space so as to limit the busbar through the limiting space.

10. A battery pack, characterized in that, Includes the battery cell module as described in any one of claims 1-9.

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