Battery cell, battery module and battery pack

Abstract

The utility model discloses a battery cell, a battery module and a battery pack, a plurality of battery cells are used for the battery module, the plurality of battery cells are connected in series, each battery cell comprises a battery cell body, and the battery cell body is provided with a positive pole column and a negative pole column; one of the male terminal and the female terminal is connected to the positive pole, the other one of the male terminal and the female terminal is connected to the negative pole, and in the three adjacent battery cells, the male terminal of the middle battery cell is suitable for being matched with the female terminal of one adjacent battery cell in a plugging manner; and the female terminal of the middle battery cell is suitable for being inserted and matched with the male terminal of another adjacent battery cell. According to the battery cell disclosed by the utility model, the positive pole columns and the negative pole columns among a plurality of battery cell bodies do not need to be welded in a module production line, so that the battery cell is convenient to install, the production efficiency is improved, and the occurrence of pseudo soldering is avoided, thereby improving the stability and the reliability of connection among a plurality of battery cells, and improving the safety of a battery module.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery cell, battery module and battery pack. Background Art

[0002] Current technology primarily connects two battery cells via busbar welding, with the busbar being an added component. Ensuring that all terminals of multiple cells are welded to the busbar increases the welding difficulty and reduces precision. If incomplete or poorly welded connections occur, module connection failures can occur, severely impacting the battery pack's energy output. Severe poor welds can lead to excessive heat generation, affecting battery pack safety. Although the precision of welding equipment is improving, current welding techniques still have a relatively high failure rate, therefore, safety issues arising from poor welds cannot be completely eliminated. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a battery cell that avoids the occurrence of poor soldering, improves the stability and reliability of the connection between multiple battery cells, and enhances the safety of the battery module.

[0004] This utility model also proposes a battery module, including the aforementioned battery cell.

[0005] This utility model also proposes a battery pack, including the aforementioned battery module.

[0006] According to an embodiment of the present invention, a battery cell is used in a battery module, and there are multiple such cells connected in series. Each battery cell includes: a cell body having a positive terminal and a negative terminal; a male terminal and a female terminal, one of which is connected to the positive terminal and the other is connected to the negative terminal. In three adjacent cells, the male terminal of the middle cell is adapted to be connected to the female terminal of one of the adjacent cells, and the female terminal of the middle cell is adapted to be connected to the male terminal of another adjacent cell.

[0007] According to the embodiments of the present invention, the battery cell is provided with male and female terminals. One of the male and female terminals is connected to the positive terminal of the battery cell body, and the other is connected to the negative terminal of the battery cell body. This allows multiple battery cells to be connected by plugging in the male and female terminals. In the module production line, the positive and negative terminals between multiple battery cells do not need to be welded, which facilitates installation, improves production efficiency, and avoids the occurrence of poor soldering. This improves the stability and reliability of the connection between multiple battery cells and enhances the safety of the battery module.

[0008] In some embodiments of this utility model, the male terminal is connected to the positive terminal, the female terminal is connected to the negative terminal, the male terminal and the positive terminal are integral parts, and the female terminal and the negative terminal are integral parts.

[0009] In some embodiments of this utility model, the male terminal is welded to the positive terminal, and the female terminal is welded to the negative terminal.

[0010] In some embodiments of this utility model, the female terminal is connected to the positive terminal, the male terminal is connected to the negative terminal, the female terminal and the positive terminal are integral parts, and the male terminal and the negative terminal are integral parts.

[0011] In some embodiments of this utility model, the female terminal is welded to the positive terminal, and the male terminal is welded to the negative terminal.

[0012] The battery module according to an embodiment of the present invention includes the above-mentioned battery cells. A plurality of battery cells are arranged along the thickness direction of the battery cell body. In one battery cell, the positive terminal and the negative terminal are respectively disposed at both ends of the length direction of the battery cell body. The male terminal is disposed on the side of one of the positive terminal and the negative terminal away from the battery cell body. The female terminal is disposed on the side of the other of the positive terminal and the negative terminal away from the battery cell body. The positive terminal of one of two adjacent battery cells and the negative terminal of the other are located at the same end of the length direction of the battery cell body. The male terminal of one of two adjacent battery cells and the female terminal of the other are located at the same end of the length direction of the battery cell body.

[0013] According to the battery module of this utility model embodiment, by setting the above-mentioned battery cell, male terminals and female terminals are provided. One of the male terminals and female terminals is connected to the positive terminal of the battery cell body, and the other is connected to the negative terminal of the battery cell body. This allows multiple battery cells to be connected through the insertion of male and female terminals. In the module production line, the positive and negative terminals between multiple battery cells do not need to be welded, which facilitates installation, improves production efficiency, and avoids the occurrence of poor soldering. This improves the stability and reliability of the connection between multiple battery cells and enhances the safety of the battery module.

[0014] In some embodiments of this utility model, the male terminal includes a first base and a connecting portion, the connecting portion being disposed on the side of the first base opposite to the cell body. The female terminal includes a second base and a mating portion, the mating portion being disposed on the side of the second base opposite to the cell body. The mating portion is adapted to mate with the connecting portion of the male terminal of an adjacent cell. In one cell, the first base is connected to one of the positive terminal and the negative terminal, and the second base is connected to the other of the positive terminal and the negative terminal. The end of the connecting portion opposite to the first base bends and extends along one side of the thickness direction of the cell body, and the mating portion protrudes and extends along the other side of the thickness direction of the cell body.

[0015] In some embodiments of this utility model, the mating part includes a connecting plate and a clamping rib. The connecting plate is disposed on the side of the second base away from the cell body, and the clamping rib is disposed on the side of the connecting plate along the thickness direction of the cell body. The clamping rib is used to clamp the connecting part of the male terminal of the adjacent cell.

[0016] In some embodiments of this utility model, the clamping ribs are a plurality of ribs spaced apart along the width direction of the battery cell body.

[0017] The battery pack according to an embodiment of the present invention includes the battery module described above.

[0018] According to the battery pack of this utility model embodiment, by setting the above-mentioned battery module, setting the above-mentioned battery cell, setting male terminals and female terminals, one of the male terminals and female terminals is connected to the positive terminal of the battery cell body, and the other is connected to the negative terminal of the battery cell body, so that multiple battery cells can be connected by plugging in the male terminals and female terminals. In the module production line, the positive and negative terminals between multiple battery cells do not need to be welded, which is convenient for installation, improves production efficiency, and avoids the occurrence of poor soldering. This improves the stability and reliability of the connection between multiple battery cells and improves the safety of the battery module.

[0019] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

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

[0021] Figure 1 This is a perspective view of a battery module according to an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a perspective view of a battery cell according to an embodiment of the present utility model;

[0024] Figure 4 This is a perspective view of the battery cell according to an embodiment of the present utility model.

[0025] Figure label:

[0026] 100. Battery module;

[0027] 10. Battery cells;

[0028] 1. Battery cell body; 11. Positive terminal; 12. Negative terminal;

[0029] 2. Male terminal; 21. First base; 22. Connecting part;

[0030] 3. Female terminal; 31. Second base; 32. Mating part; 321. Connecting plate; 322. Clamping rib. DETAILED DESCRIPTION

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown 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 utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The following is for reference. Figures 1-4 The battery cell 10 according to an embodiment of the present utility model is described.

[0035] like Figures 1-4 As shown, the battery cell 10 according to an embodiment of the present invention includes: a battery cell body 1, a male terminal 2 and a female terminal 3.

[0036] Specifically, refer to Figures 1-4 The battery cell 10 is used in the battery module 100 and there are multiple cells 10 connected in series. The cell body 1 has a positive terminal 11 and a negative terminal 12. One of the male terminal 2 and the female terminal 3 is connected to the positive terminal 11 and the other is connected to the negative terminal 12. For example, in this utility model, the male terminal 2 is connected to the positive terminal 11 and the female terminal 3 is connected to the negative terminal 12. However, this utility model is not limited to this. It is also possible that the male terminal 2 is connected to the negative terminal 12 and the female terminal 3 is connected to the positive terminal 11. It should be noted that in a battery module 100, the positive terminal 11 of each cell 10 is connected to the male terminal 2 and the negative terminal 12 of each cell 10 is connected to the female terminal 3, or the positive terminal 11 of each cell 10 is connected to the female terminal 3 and the negative terminal 12 of each cell 10 is connected to the male terminal 2.

[0037] In three adjacent cells 10, the male terminal 2 of the middle cell 10 is adapted to be connected to the female terminal 3 of one of the adjacent cells 10, and the female terminal 3 of the middle cell 10 is adapted to be connected to the male terminal 2 of another adjacent cell 10. Specifically, when the male terminal 2 is connected to the positive terminal 11 and the female terminal 3 is connected to the negative terminal 12, the positive terminal 11 of the middle cell 10 can be connected to the negative terminal 12 of one of the adjacent cells 10, and the negative terminal 12 of the middle cell 10 can be connected to the positive terminal 11 of another adjacent cell 10; conversely, when the male terminal 2 is connected to the negative terminal 12 and the female terminal 3 is connected to the positive terminal 11, the negative terminal 12 of the middle cell 10 can be connected to the positive terminal 11 of one of the adjacent cells 10, and the positive terminal 11 of the middle cell 10 can be connected to the negative terminal 12 of another adjacent cell 10.

[0038] Thus, by having the male terminal 2 of the middle cell 10 in one of the three adjacent cells 10 be adapted to be connected to the female terminal 3 of one of the adjacent cells 10, and the female terminal 3 of the middle cell 10 be adapted to be connected to the male terminal 2 of another adjacent cell 10, the positive and negative terminals of the multiple cells 10 are connected end to end, thereby realizing the series connection between the multiple cells 10.

[0039] It is understandable that multiple battery cell bodies 1 are connected by plugging in male terminals 2 and female terminals 3. Compared with the connection between multiple battery cells by welding through busbars, the positive terminal 11 and negative terminal 12 between multiple battery cell bodies 1 do not need to be welded in the module production line. This makes installation convenient, improves production efficiency, and avoids the occurrence of poor soldering. As a result, the stability and reliability of the connection between multiple battery cells 10 are improved, and the safety of the battery module 100 is enhanced.

[0040] Furthermore, since multiple battery cell bodies 1 can be disassembled and installed by plugging and unplugging male terminals 2 and female terminals 3, when a battery cell 10 is damaged (either the battery cell body 1 is damaged, or at least one of male terminals 2 and female terminals 3 is damaged), the damaged battery cell 10 can be removed and replaced by disassembling male terminals 2 and female terminals 3. However, since multiple battery cells 10 are connected by welding to a busbar, the multiple battery cells 10 and the busbar form a single unit, making it impossible to replace a damaged battery cell 10. Therefore, connecting multiple battery cell bodies 1 by plugging and unplugging male terminals 2 and female terminals 3 also facilitates the subsequent replacement of battery cells 10, reducing maintenance and replacement costs.

[0041] According to the embodiment of the present invention, the battery cell 10 is provided with a male terminal 2 and a female terminal 3. One of the male terminal 2 and the female terminal 3 is connected to the positive terminal 11 of the battery cell body 1, and the other is connected to the negative terminal 12 of the battery cell body 1. This allows multiple battery cell bodies 1 to be connected by plugging in the male terminal 2 and the female terminal 3. In the module production line, the positive terminal 11 and the negative terminal 12 between multiple battery cell bodies 1 do not need to be welded, which facilitates installation, improves production efficiency, and avoids the occurrence of poor soldering. This improves the stability and reliability of the connection between multiple battery cells 10 and enhances the safety of the battery module 100.

[0042] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, male terminal 2 is connected to positive terminal 11, and female terminal 3 is connected to negative terminal 12. Male terminal 2 and positive terminal 11 are integral components, and female terminal 3 and negative terminal 12 are integral components. This prevents detachment between male terminal 2 and positive terminal 11, and between female terminal 3 and negative terminal 12, thereby further improving the stability and reliability of the connection between multiple battery cells 10 and enhancing the safety of the battery module 100.

[0043] In some embodiments of this invention, the male terminal 2 is welded to the positive terminal 11, and the female terminal 3 is welded to the negative terminal 12. This further improves the connection reliability between the male terminal 2 and the positive terminal 11, and further improves the connection reliability between the female terminal 3 and the negative terminal 12.

[0044] It is understandable that the process of welding male terminal 2 to positive terminal 11 and female terminal 3 to negative terminal 12 does not need to be completed on the module production line. Moreover, the production of a cell 10 can be completed by welding only twice (welding male terminal 2 and female terminal 3) to a cell body 1. Compared with welding multiple positive and negative terminals on the busbar, the welding precision is controllable and the probability of poor soldering is reduced.

[0045] In some embodiments of this utility model, the female terminal 3 is connected to the positive terminal 11, and the male terminal 2 is connected to the negative terminal 12. The female terminal 3 and the positive terminal 11 are integral parts, and the male terminal 2 and the negative terminal 12 are integral parts. This prevents the female terminal 3 from detaching from the positive terminal 11, and the male terminal 2 from detaching from the negative terminal 12, thereby further improving the stability and reliability of the connection between the multiple battery cells 10 and enhancing the safety of the battery module 100.

[0046] In some embodiments of this invention, the female terminal 3 is welded to the positive terminal 11, and the male terminal 2 is welded to the negative terminal 12. This further improves the connection reliability between the female terminal 3 and the positive terminal 11, and further improves the connection reliability between the male terminal 2 and the negative terminal 12.

[0047] It is understandable that the welding of the female terminal 3 to the positive terminal 11 and the welding of the male terminal 2 to the negative terminal 12 does not need to be completed on the module production line. Moreover, the production of a battery cell 10 can be completed by welding only twice (welding the male terminal 2 and the female terminal 3). Compared with welding multiple positive and negative terminals on the busbar, the welding precision is controllable and the probability of poor soldering is reduced.

[0048] The following is for reference. Figure 1 and Figure 2 A battery module 100 according to an embodiment of the present utility model is described.

[0049] like Figure 1 and Figure 2 As shown, the battery module 100 according to the embodiment of the present utility model includes the above-mentioned battery cell 10. Multiple battery cells 10 are arranged along the thickness direction of the battery cell body 1. The thickness of the battery cell body 1 is smaller than the width and length of the battery cell body 1. The arrangement of multiple battery cells 10 along the thickness direction of the battery cell body 1 can reduce the length of the battery module 100.

[0050] Furthermore, such as Figure 1 and Figure 2 As shown, in a battery cell 10, a positive terminal 11 and a negative terminal 12 are respectively located at both ends of the battery cell body 1 along its length. A male terminal 2 is located on the side of one of the positive terminal 11 and the negative terminal 12 that is away from the battery cell body 1, and a female terminal 3 is located on the side of the other of the positive terminal 11 and the negative terminal 12 that is away from the battery cell body 1. It should be noted that when the male terminal 2 is connected to the positive terminal 11 and the female terminal 3 is connected to the negative terminal 12, the male terminal 2 is located on the side of the positive terminal 11 that is away from the battery cell body 1, and the female terminal 3 is located on the side of the negative terminal 12 that is away from the battery cell body 1. When the female terminal 3 is connected to the positive terminal 11 and the male terminal 2 is connected to the negative terminal 12, the female terminal 3 is located on the side of the positive terminal 11 that is away from the battery cell body 1, and the male terminal 2 is located on the side of the negative terminal 12 that is away from the battery cell body 1.

[0051] Furthermore, such as Figure 1 and Figure 2 As shown, the positive terminal 11 of one of two adjacent battery cells 10 and the negative terminal 12 of the other are located at the same end along the length of the battery cell body 1, and the male terminal 2 of one of two adjacent battery cells 10 and the female terminal 3 of the other are located at the same end along the length of the battery cell body 1. Therefore, through this arrangement, at the same end along the length of the battery cell body 1, the male terminal 2 of one of two adjacent battery cells 10 and the female terminal 3 of the other can be plugged in and connected, thereby achieving electrical connection between the positive terminal 11 of one of two adjacent battery cells 10 and the negative terminal 12 of the other, thus allowing the positive and negative terminals of multiple battery cells 10 arranged along the thickness direction of the battery cell body 1 to be connected end-to-end.

[0052] According to the battery module 100 of this utility model embodiment, by setting the aforementioned battery cell 10, male terminal 2 and female terminal 3 are provided. One of the male terminal 2 and female terminal 3 is connected to the positive terminal 11 of the battery cell body 1, and the other is connected to the negative terminal 12 of the battery cell body 1. This allows multiple battery cell bodies 1 to be connected through the insertion of male terminal 2 and female terminal 3. In the module production line, the positive terminal 11 and negative terminal 12 of multiple battery cell bodies 1 do not need to be welded, which facilitates installation, improves production efficiency, and avoids the occurrence of poor soldering. This improves the stability and reliability of the connection between multiple battery cells 10 and enhances the safety of the battery module 100.

[0053] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the male terminal 2 includes a first base 21 and a connecting portion 22. The connecting portion 22 is located on the side of the first base 21 away from the cell body 1. The female terminal 3 includes a second base 31 and a mating portion 32. The mating portion 32 is located on the side of the second base 31 away from the cell body 1. The mating portion 32 is adapted to mate with the connecting portion 22 of the male terminal 2 of the adjacent cell 10. In a cell 10, the first base 21 is connected to one of the positive terminal 11 and the negative terminal 12, and the second base 31 is connected to the other of the positive terminal 11 and the negative terminal 12. The end of the connecting portion 22 away from the first base 21 is bent and extends along one side of the thickness direction of the cell body 1, and the mating portion 32 protrudes and extends along the other side of the thickness direction of the cell body 1.

[0054] It should be noted that when the male terminal 2 is connected to the positive terminal 11 and the female terminal 3 is connected to the negative terminal 12, the first base 21 is connected to the positive terminal 11 and the second base 31 is connected to the negative terminal 12. When the female terminal 3 is connected to the positive terminal 11 and the male terminal 2 is connected to the negative terminal 12, the first base 21 is connected to the negative terminal 12 and the second base 31 is connected to the positive terminal 11.

[0055] It is understandable that the end of the connecting part 22 facing away from the first base 21 bends and extends along one side of the thickness direction of the cell body 1, and the mating part 32 protrudes and extends along the other side of the thickness direction of the cell body 1, so that in two adjacent cells 10, the connecting part 22 of the male terminal 2 of one cell 10 and the mating part 32 of the female terminal 3 of the other cell 10 can face each other, so that the connecting part 22 of the male terminal 2 of one cell 10 can be inserted into the mating part 32 of the female terminal 3 of the other cell 10, thereby realizing the connection between adjacent cells 10.

[0056] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the mating part 32 includes a connecting plate 321 and a clamping rib 322. The connecting plate 321 is located on the side of the second base 31 opposite to the cell body 1, and the clamping rib 322 is located on the side of the connecting plate 321 along the thickness direction of the cell body 1. The clamping rib 322 is used to clamp the connecting part 22 of the male terminal 2 of the adjacent cell 10. Thus, the clamping rib 322 enables the connection between two adjacent cell bodies 1 through the insertion of the male terminal 2 and the female terminal 3.

[0057] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the clamping ribs 322 are multiple ribs spaced apart along the width direction of the cell body 1. This increases the contact area between the male terminal 2 and the female terminal 3, making the connection between adjacent cells 10 more reliable and stable.

[0058] For example, Figure 1 and Figure 2 In the example shown, there are three clamping ribs 322, but the present invention is not limited to this. There can be more clamping ribs 322, such as 4, 5, 6 or 7.

[0059] The following describes a battery pack according to an embodiment of the present invention.

[0060] The battery pack according to an embodiment of the present invention includes the battery module 100 described above.

[0061] According to the battery pack of this utility model embodiment, by setting the battery module 100, the battery cell 10, and the male terminal 2 and female terminal 3, one of the male terminal 2 and female terminal 3 is connected to the positive terminal 11 of the battery cell body 1, and the other is connected to the negative terminal 12 of the battery cell body 1. This allows multiple battery cell bodies 1 to be connected by plugging in the male terminal 2 and female terminal 3. In the module production line, the positive terminal 11 and negative terminal 12 of multiple battery cell bodies 1 do not need to be welded, which facilitates installation, improves production efficiency, and avoids the occurrence of poor soldering. This improves the stability and reliability of the connection between multiple battery cells 10 and enhances the safety of the battery module 100.

[0062] 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 the present invention. 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.

[0063] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery cell, characterized in that, For use in battery modules, and in multiple modules, wherein the multiple battery cells are connected in series, the battery cells include: A battery cell body, wherein the battery cell body has a positive terminal and a negative terminal; The battery has a male terminal and a female terminal, one of which is connected to the positive terminal and the other is connected to the negative terminal. Among three adjacent battery cells, the male terminal of the middle battery cell is adapted to be connected to the female terminal of one of the adjacent battery cells, and the female terminal of the middle battery cell is adapted to be connected to the male terminal of another adjacent battery cell.

2. The battery cell according to claim 1, characterized in that, The male terminal is connected to the positive terminal, and the female terminal is connected to the negative terminal. The male terminal and the positive terminal are integral parts, and the female terminal and the negative terminal are integral parts.

3. The battery cell according to claim 2, characterized in that, The male terminal is welded to the positive terminal, and the female terminal is welded to the negative terminal.

4. The battery cell according to claim 1, characterized in that, The female terminal is connected to the positive terminal, and the male terminal is connected to the negative terminal. The female terminal and the positive terminal are integral parts, and the male terminal and the negative terminal are integral parts.

5. The battery cell according to claim 4, characterized in that, The female terminal is welded to the positive terminal, and the male terminal is welded to the negative terminal.

6. A battery module, characterized in that, include: According to any one of claims 1-5, in a battery cell, a plurality of battery cells are arranged along the thickness direction of the battery cell body. In one battery cell, the positive terminal and the negative terminal are respectively disposed at both ends of the length direction of the battery cell body. The male terminal is disposed on the side of one of the positive terminal and the negative terminal that is away from the battery cell body, and the female terminal is disposed on the side of the other of the positive terminal and the negative terminal that is away from the battery cell body. The positive terminal of one of two adjacent battery cells and the negative terminal of the other are located at the same end along the length of the battery cell body, and the male terminal of one of two adjacent battery cells and the female terminal of the other are located at the same end along the length of the battery cell body.

7. The battery module according to claim 6, characterized in that, The male terminal includes a first base and a connecting portion, the connecting portion being disposed on the side of the first base opposite to the cell body. The female terminal includes a second base and a mating portion, the mating portion being disposed on the side of the second base opposite to the cell body, the mating portion being adapted to mate with the connecting portion of the male terminal of an adjacent cell. In one of the battery cells, the first base is connected to one of the positive terminal and the negative terminal, and the second base is connected to the other of the positive terminal and the negative terminal. The end of the connection portion opposite to the first base is bent and extends along one side of the thickness direction of the battery cell body, and the mating portion protrudes and extends along the other side of the thickness direction of the battery cell body.

8. The battery module according to claim 7, characterized in that, The mating part includes a connecting plate and a clamping rib. The connecting plate is located on the side of the second base away from the cell body, and the clamping rib is located on the side of the connecting plate along the thickness direction of the cell body. The clamping rib is used to clamp the connection part of the male terminal of the adjacent cell.

9. The battery module according to claim 8, characterized in that, The clamping ribs are multiple ribs spaced apart along the width direction of the battery cell body.

10. A battery pack, characterized in that, Includes the battery module according to any one of claims 6-9.

Images