Electrode protection structure and battery cell module

Abstract

The utility model discloses an electrode protection structure and a battery cell module, the battery cell module comprises the electrode protection structure, and the electrode protection structure comprises an electrode protection seat and an electrode protection cover. Wherein a wiring part is arranged on the electrode protection seat. The electrode protection cover covers the electrode protection base, the electrode protection cover and the electrode protection base define an assembly space, the wiring part is located in the assembly space, openings are formed in at least two different side walls of the electrode protection cover, and the at least two openings are used for allowing a preset conductive piece to penetrate into the assembly space in at least two different directions so as to be connected with the wiring part. According to the electrode protection structure and the battery cell module provided by the invention, the problem that an electrode protection cover in the prior art is relatively poor in adaptability is solved.

Description

Technical Field

[0001] The present application relates to the field of battery protection technology, and more specifically, to an electrode protection structure and a battery cell module. Background Art

[0002] The positive or negative terminal of a battery cell module typically needs to be connected to a copper busbar to transfer the current within the cell to external devices. Electrode protection structures are typically provided on the copper busbar and the positive and negative terminals to protect them. Existing electrode protection structures include an electrode protection cover and an electrode protection base. The electrode protection cover is mounted on the electrode protection base, and the copper busbar passes through the electrode protection cover to connect to the positive and negative terminals embedded in the electrode protection base.

[0003] However, the existing electrode protection cover has a single method for inserting the copper busbar, which makes the adaptability of the electrode protection cover poor. Utility Model Content

[0004] The main purpose of this application is to provide an electrode protection structure and a battery cell module to at least solve the problem of poor adaptability of the electrode protection cover in the prior art.

[0005] According to one aspect of the present application, there is provided an electrode protection structure, comprising:

[0006] An electrode protection seat, wherein a wiring portion is provided on the electrode protection seat;

[0007] An electrode protection cover is provided on the electrode protection seat and encloses the electrode protection seat to form an assembly space, the wiring portion is located in the assembly space, and openings are provided on at least two different side walls of the electrode protection cover, and at least two of the openings are used for allowing predetermined conductive parts to penetrate into the assembly space along at least two different directions to connect with the wiring portion.

[0008] Furthermore, the electrode protection cover includes a main body and a surrounding plate, the surrounding plate is arranged on the main body, the surrounding plate includes a first side surface and a second side surface, the planes on which the first side surface and the second side surface are located intersect, and the opening is provided on both the first side surface and the second side surface.

[0009] Furthermore, the opening includes a first opening and a second opening, the first opening is opened on the first side surface, and the second opening is opened on the second side surface;

[0010] The outer edge of the main body includes a first side, a second side, a third side and a fourth side connected in sequence, and the enclosure includes a first side wall, a second side wall and a third side wall connected in sequence, the first side wall is connected to the first side, the second side wall is connected to the second side and the first side wall, the third side wall is connected to the third side and the second side wall, at least one of the first side wall and the third side wall has the first side surface, and the first side wall, the second side wall and the third side wall are arranged on a side facing away from the main body to form the second opening.

[0011] Furthermore, the first openings include two, and the two first openings are respectively opened on the first side wall and the third side wall.

[0012] Furthermore, the electrode protection cover further includes a stopper, and the stopper is detachably connected to the first opening.

[0013] Furthermore, the stop portion includes a plate body and ribs, the plate body is laid in the first opening, and the ribs are breakably connected between the plate body and the first opening.

[0014] Furthermore, the first side wall includes a first vertical section, a second vertical section, and a first bent section, the first vertical section being arranged at an end of the first side wall close to the second side wall, the second vertical section being arranged at an end of the first side wall away from the second side wall, the first bent section being arranged between the first vertical section and the second vertical section, the first bent section extending in a direction close to the third side wall, the first bent section abutting against the electrode protection seat, and the first vertical section being provided with the first opening;

[0015] The third side wall includes a third vertical section, a fourth vertical section and a second bent section, the third vertical section is arranged at an end of the third side wall close to the second side wall, the fourth vertical section is arranged at an end of the third side wall away from the second side wall, the second bent section is arranged between the third vertical section and the fourth vertical section, and the second bent section extends in a direction close to the first side wall, the second bent section abuts against the electrode protection seat, and the first opening is provided on the third vertical section.

[0016] Furthermore, one of the electrode protection seat and the electrode protection cover is provided with a card slot inclined along the height direction of the electrode protection structure, and the other one is provided with a buckle matched with the card slot.

[0017] Furthermore, a slide rail is provided on one of the electrode protection cover and the electrode protection seat, and a slide groove matching the slide rail is provided on the other of the two. The slide rail penetrates into the slide groove to guide and limit the electrode protection cover.

[0018] On the other hand, the present application provides a battery cell module, which includes the above-mentioned electrode protection structure.

[0019] Compared with the prior art, the electrode protection cover in this application is provided with openings on at least two different side walls, and at least two openings are used for the predetermined conductive member to penetrate the assembly space along at least two different directions to connect with the wiring portion. This means that the predetermined conductive member can selectively select one of the at least two openings and penetrate into the assembly space to connect with the wiring portion. In other words, when the battery cell module is penetrated by the predetermined conductive member, the insertion direction can be selected according to the space conditions of the battery pack, thereby improving the space utilization rate in the battery pack to a certain extent. The structural setting of this application can improve the adaptability of the electrode protection cover to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the assembly of the electrode protection structure disclosed in this application and the predetermined conductive member;

[0022] Figure 2 This is a schematic structural diagram of the electrode protection structure disclosed in this application;

[0023] Figure 3 This is a schematic structural diagram of the electrode protection seat disclosed in this application;

[0024] Figure 4 This is a structural schematic diagram of the electrode protection cover disclosed in this application in a first state (the first opening is blocked);

[0025] Figure 5 This is a structural schematic diagram of the electrode protection cover disclosed in this application in the second state (the first opening is open);

[0026] Figure 6 This is a schematic structural diagram of the electrode protection cover disclosed in this application from a first viewing angle.

[0027] The above drawings include the following reference numerals:

[0028] 10. Electrode protection seat; 11. Wiring portion; 12. Buckle; 13. Slide groove; 20. Electrode protection cover; 21. Main body; 22. First side wall; 23. Second side wall; 24. Third side wall; 25. Slide rail; 26. Slot; 30. Predetermined conductive member; 40. Stop portion; 41. Plate; 42. Rib; 50. Opening; 51. First opening; 52. Second opening; 111. Fixing hole; 201. Assembly space; 202. First side; 203. Second side; 204. Third side; 205. Fourth side; 221. First vertical section; 222. Second vertical section; 223. First bending section; 241. Third vertical section; 242. Fourth vertical section; 243. Second bending section. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0032] See also Figures 1 to 6 As shown, according to an embodiment of the present application, an electrode protection structure and a battery cell module are provided. The battery cell module includes an electrode protection structure, and the electrode protection structure includes an electrode protection seat 10 and an electrode protection cover 20.

[0033] The electrode protection base 10 is provided with a wiring portion 11. The electrode protection cover 20 is provided on the electrode protection base 10 and encloses the electrode protection base 10 to form an assembly space 201. The wiring portion 11 is located in the assembly space 201. The electrode protection cover 20 has openings 50 provided on at least two different side walls. The at least two openings 50 are used to allow a predetermined conductive member 30 to pass through the assembly space 201 in at least two different directions to connect with the wiring portion 11.

[0034] Specifically, the cell modules are usually arranged in the box of the battery pack, and multiple cell modules are arranged in a matrix in the box. The electrode protection structure is usually arranged on the end plate of the cell module and is used to protect the positive and negative electrodes of the cell. The positive and negative electrodes of the cell are connected to the wiring portion 11. Usually, multiple cell modules need to be connected to the corresponding wiring portion 11 through a predetermined conductive member 30 in order to connect the multiple cell modules. Or when the current of the cell module is to be input to the outside, it is also necessary to use the predetermined conductive member 30 to connect to the wiring portion 11. However, since the existing electrode protection cover 20 usually has only one opening 50, the way in which the predetermined conductive member 30 penetrates the electrode protection cover 20 and connects to the wiring portion 11 on the electrode protection seat 10 is single, which reduces the space utilization rate in the battery pack to a certain extent. That is, the predetermined conductive member 30 can only penetrate the electrode protection cover 20 from a single direction, resulting in the battery pack being too long in a specific direction.

[0035] Unlike the prior art, in the present application, openings 50 are provided on at least two different side walls of the electrode protection cover 20, and at least two openings 50 are used for the predetermined conductive member 30 to penetrate the assembly space 201 along at least two different directions to connect with the wiring portion 11. This means that the predetermined conductive member 30 can selectively select one of the at least two openings 50 opened and penetrate into the assembly space 201 to connect with the wiring portion 11. In other words, when the battery cell module is penetrated by the predetermined conductive member 30, the insertion direction can be selected according to the space conditions of the battery pack, thereby improving the space utilization rate in the battery pack to a certain extent. The structural arrangement of this embodiment can improve the adaptability of the electrode protection cover 20 to a certain extent.

[0036] In addition, the wiring portion 11 of the present application is provided with a fixing hole 111. When the copper busbar contacts the wiring portion 11, the copper busbar is fixed to the wiring portion 11 through the fixing hole 111. In this embodiment, the predetermined conductive member 30 may be a copper busbar.

[0037] Furthermore, the electrode protection cover 20 includes a main body 21 and a panel, which is disposed around the main body 21. The panel includes a first side surface and a second side surface, the planes of which intersect, and each of which is provided with an opening 50. Specifically, the planes of which intersect are the first side surface and the second side surface, which means that the copper busbar enters the assembly space 201 from the opening 50 on the first side surface or from the opening 50 on the second side surface in different directions, and the two directions are not parallel.

[0038] Furthermore, the opening 50 includes a first opening 51 and a second opening 52. The first opening 51 is opened on the first side, and the second opening 52 is opened on the second side. The outer edge of the main body 21 includes a first side 202, a second side 203, a third side 204 and a fourth side 205 connected in sequence, as shown in the attached figure. Figure 4 As shown, the enclosure includes a first side wall 22, a second side wall 23 and a third side wall 24 connected in sequence, the first side wall 22 is connected to the first side edge 202, the second side wall 23 is connected to the second side edge 203 and the first side wall 22, the third side wall 24 is connected to the third side edge 204 and the second side wall 23, at least one of the first side wall 22 and the third side wall 24 has a first side surface, and the first side wall 22, the second side wall 23 and the third side wall 24 are arranged on a side away from the main body 21 to form a second opening 52.

[0039] Specifically, in this embodiment, the first side wall 22, the second side wall 23 and the third side wall 24 are arranged in a U-shaped structure, the first side wall 22 is provided with a first side surface, the side of the U-shaped structure facing away from the main body 21 is the second side surface, and the second side surface forms a second opening 52. In some embodiments, the enclosure further includes a fourth side wall, the fourth side wall being arranged between the first side wall 22 and the third side wall 24, that is, the fourth side wall is connected to the first side wall 22 and the end of the fourth side wall facing away from the main body 21, and the second side surface is arranged on the fourth side wall. In other embodiments, the second side surface is arranged on the main body 21, that is, the second opening 52 is opened on the main body 21, and the copper busbar can pass through the second opening 52 into the assembly space 201 and connect with the wiring portion 11 on the electrode protection seat 10. Of course, the second opening 52 can also be arranged on the second side wall 23.

[0040] In a specific embodiment, two first openings 51 are provided, one on the first side wall 22 and the other on the third side wall 24. In other words, both the first side wall 22 and the third side wall 24 are provided with a first side surface, and the two first side surfaces can be arranged in parallel or intersecting with each other. The copper busbar can enter the assembly space 201 through the first opening 51 on the first side wall 22 or the third side wall 24, depending on the space available within the battery pack. The copper busbar can also enter the assembly space 201 through the second opening 52 on the second side surface.

[0041] In addition, since multiple first openings 51 can be provided on the electrode protection cover 20, the multiple first openings 51 may cause external dust or other impurities to enter the assembly space 201, ultimately causing contamination or other impacts on the wiring portion 11. Therefore, in this embodiment, a stopper 40 is provided on the electrode protection cover 20, and the stopper 40 is removably connected to the first opening 51; that is, when the copper busbar does not need to enter through the first opening 51, the stopper 40 on the first opening 51 is not removed, and the stopper 40 can block external dust and impurities. When the copper busbar needs to enter through the first opening 51, it only needs to remove the stopper 40 on the corresponding first opening 51 to allow the copper busbar to pass through.

[0042] See attached Figure 5 As shown, the stopper 40 includes a plate body 41 and ribs 42 . The plate body 41 is laid in the first opening 51 , and the ribs 42 are breakably connected between the plate body 41 and the first opening 51 .

[0043] In this embodiment, when assembling the copper busbar and the wiring portion 11, the assembler only needs to apply a certain external force to the plate body 41. The plate body 41 is subjected to the external force and transmitted to the ribs 42. The ribs 42 are subjected to the force and break, ultimately separating the plate body 41 from the first opening 51. At this time, the first opening 51 is open, allowing the copper busbar to be inserted into the assembly space 201. In this embodiment, the ribs 42 include multiple ribs 42, which are connected between the plate body 41 and the first opening 51 at intervals along the circumference of the plate body 41. This improves the connection strength between the plate body 41 and the ribs 42, and prevents the plate body 41 from being separated from the first opening 51 by a relatively weak external force.

[0044] In addition, the first side wall 22 includes a first vertical section 221, a second vertical section 222 and a first bent section 223. The first vertical section 221 is arranged at one end of the first side wall 22 close to the second side wall 23, the second vertical section 222 is arranged at one end of the first side wall 22 away from the second side wall 23, the first bent section 223 is arranged between the first vertical section 221 and the second vertical section 222, the first bent section 223 extends in a direction close to the third side wall 24, the first bent section 223 abuts against the electrode protection seat 10, and the first vertical section 221 is provided with a first opening 51 ;The third side wall 24 includes a third vertical section 241, a fourth vertical section 242 and a second bending section 243. The third vertical section 241 is arranged at one end of the third side wall 24 close to the second side wall 23, and the fourth vertical section 242 is arranged at one end of the third side wall 24 away from the second side wall 23. The second bending section 243 is arranged between the third vertical section 241 and the fourth vertical section 242, and the second bending section 243 extends in a direction close to the first side wall 22. The second bending section 243 rests on the electrode protection seat 10, and a first opening 51 is opened on the third vertical section 241.

[0045] In this embodiment, the first bending section 223 and the second bending section 243 are used to limit the electrode protection seat 10, preventing the electrode protection seat 10 from moving too much in the direction close to the second side wall 23 of the electrode protection cover 20, which would cause the assembly space 201 to be too small and the copper busbar to be unable to connect with the wiring portion 11 on the electrode protection seat 10 in the assembly space 201. In addition, a first opening 51 is provided on the first vertical section 221 and the third vertical section 241. When the first opening 51 is provided on the first vertical section 221 and the third vertical section 241, since the electrode protection seat 10 is spatially limited by the first bending section 223 and the second bending section 243, the copper busbar will not interfere with the electrode protection seat 10 when it passes through the first opening 51 on the first vertical section 221 or the third vertical section 241 into the assembly space 201.

[0046] Furthermore, one of the electrode protection seat 10 and the electrode protection cover 20 is provided with a slot 26 that is tilted along the height direction of the electrode protection structure, and the other one is provided with a buckle 12 that matches the slot 26 .

[0047] In this embodiment, the electrode protection cover 20 is provided with a slot 26 inclined along the height direction of the electrode protection structure, and the electrode protection base 10 is provided with a buckle 12 that cooperates with the slot 26. When the electrode protection cover 20 is placed on the electrode protection base 10, the buckle 12 is locked in the slot 26. Because the slot 26 and the buckle 12 are both inclined along the height direction of the electrode protection structure, on the one hand, when the slot 26 and the buckle 12 are assembled, the buckle 12 is more easily inserted into the buckle 12, thereby to a certain extent improving the matching efficiency of the slot 26 and the buckle 12. On the other hand, when the buckle 12 is subjected to external force, the slot 26 can apply opposing forces to the buckle 12 in multiple directions, thereby to a certain extent preventing the buckle 12 from being dislodged from the slot 26 due to the external force. Optionally, the slot 26 can be provided on the electrode protection base 10, and the buckle 12 can be provided on the electrode protection cover 20.

[0048] Furthermore, a slide rail 25 is provided on one of the electrode protection cover 20 and the electrode protection seat 10 , and a slide groove 13 matching the slide rail 25 is provided on the other of the two. The slide rail 25 penetrates into the slide groove 13 to guide and limit the electrode protection cover 20 .

[0049] Specifically, when assembling the electrode protection cover 20 and the electrode protection seat 10, the slide rail 25 is first inserted into the slide groove 13, and a thrust is applied to the electrode protection cover 20 to make the slide rail 25 slide in the slide groove 13. When the slide rail 25 slides to one end of the slide groove 13, the buckle 12 is clamped in the clamping groove 26. In this embodiment, the slide rail 25 is arranged on the first side wall 22 and the third side wall 24 of the electrode protection cover 20. One end of the slide rail 25 is pressed against the main body 21, and the other end of the slide rail 25 extends a predetermined distance in a direction away from the main body 21. The slide groove 13 is arranged on the side wall of the electrode protection seat 10 opposite to the first side wall 22 and the third side wall 24. In addition, after the slide rail 25 is inserted into the slide groove 13, the slide groove 13 can have a certain limiting effect on the electrode protection cover 20 in the height direction.

[0050] In this embodiment, the process of assembling the electrode protection cover 20 and the copper busbar can be as follows: first, plan the direction in which the copper busbar will pass through the electrode protection cover 20, and select the corresponding first opening 51 or second opening 52 according to the direction; then, pass the copper busbar through the first opening 51 or the second opening 52 to connect with the wiring portion 11. Afterwards, the slide rail 25 on the electrode protection cover 20 is inserted into the slide groove 13 on the electrode protection seat 10, and an external force is applied to the electrode protection cover 20 to cause the slide rail 25 to slide in the slide groove 13. When the slide rail 25 slides to one end of the slide groove 13, the buckle 12 on the electrode protection seat 10 is engaged with the slot 26 of the electrode protection seat 10, thereby fixing the electrode protection cover 20 on the electrode protection seat 10. When the copper busbar needs to enter the assembly space 201 through the first opening 51, the operator applies external force to the plate body 41 to break the rib 42, separate the plate body 41 from the first opening 51, and the copper busbar can then pass through the first opening 51 into the assembly space 201.

[0051] In summary, the electrode protection cover 20 of the present application is provided with openings 50 on at least two different side walls, and at least two openings 50 are used for the predetermined conductive member 30 to penetrate the assembly space 201 along at least two different directions to connect with the wiring portion 11, so as to improve the adaptability of the electrode protection cover 20 and reduce the space utilization rate in the battery pack. In addition, a stopper 40 is provided on the first opening 51 on the electrode protection cover 20, and the stopper 40 is removably connected to the first opening 51, so that when there are multiple first openings 51 on the electrode protection cover 20, the multiple first openings 51 can block external dust or impurities to a certain extent when there is no need to insert the copper busbar. In addition, a card slot 26 is provided on one of the electrode protection cover 20 and the electrode protection seat 10, which is inclined along the height direction of the electrode protection structure, and a buckle 12 that cooperates with the card slot 26 is provided on the other of the two, so as to improve the assembly efficiency and connection stability of the electrode protection cover 20 and the electrode protection seat 10. Finally, a slide rail 25 is provided on one of the electrode protection seat 10 and the electrode protection cover 20 , and a slide groove 13 is provided on the other of the two. The slide groove 13 cooperates with the slide rail 25 to guide and limit the electrode protection cover 20 .

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0054] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electrode protection structure, characterized in that: include: An electrode protection seat (10), wherein a wiring portion (11) is provided on the electrode protection seat (10); An electrode protection cover (20) is provided on the electrode protection seat (10) and encloses an assembly space (201) with the electrode protection seat (10); the wiring portion (11) is located in the assembly space (201); openings (50) are provided on at least two different side walls of the electrode protection cover (20); at least two of the openings (50) are used to allow a predetermined conductive member (30) to penetrate into the assembly space (201) along at least two different directions to connect with the wiring portion (11).

2. The electrode protection structure according to claim 1, characterized in that: The electrode protection cover (20) comprises a main body (21) and a surrounding plate, wherein the surrounding plate is arranged on the main body (21), the surrounding plate comprises a first side surface and a second side surface, the planes on which the first side surface and the second side surface are located intersect, and the opening (50) is provided on both the first side surface and the second side surface.

3. The electrode protection structure according to claim 2, characterized in that: The opening (50) includes a first opening (51) and a second opening (52), wherein the first opening (51) is opened on the first side surface, and the second opening (52) is opened on the second side surface; The outer edge of the main body (21) includes a first side (202), a second side (203), a third side (204) and a fourth side (205) connected in sequence, and the enclosure includes a first side wall (22), a second side wall (23) and a third side wall (24) connected in sequence, the first side wall (22) is connected to the first side (202), the second side wall (23) is connected to the second side (203) and the first side wall (22), the third side wall (24) is connected to the third side (204) and the second side wall (23), at least one of the first side wall (22) and the third side wall (24) has the first side surface, and the first side wall (22), the second side wall (23) and the third side wall (24) are arranged on a side away from the main body (21) to form the second opening (52).

4. The electrode protection structure according to claim 3, characterized in that: The first openings (51) include two, and the two first openings (51) are respectively opened on the first side wall (22) and the third side wall (24).

5. The electrode protection structure according to claim 3, characterized in that: The electrode protection cover (20) further includes a stopper (40), wherein the stopper (40) is detachably connected to the first opening (51).

6. The electrode protection structure according to claim 5, characterized in that: The stopper (40) comprises a plate body (41) and ribs (42), wherein the plate body (41) is laid in the first opening (51), and the ribs (42) are breakably connected between the plate body (41) and the first opening (51).

7. The electrode protection structure according to claim 3, characterized in that: The first side wall (22) comprises a first vertical section (221), a second vertical section (222) and a first bent section (223); the first vertical section (221) is arranged at one end of the first side wall (22) close to the second side wall (23); the second vertical section (222) is arranged at one end of the first side wall (22) away from the second side wall (23); the first bent section (223) is arranged between the first vertical section (221) and the second vertical section (222); the first bent section (223) extends in a direction close to the third side wall (24); the first bent section (223) abuts against the electrode protection seat (10); and the first vertical section (221) is provided with the first opening (51); The third side wall (24) comprises a third vertical section (241), a fourth vertical section (242) and a second bending section (243); the third vertical section (241) is arranged at one end of the third side wall (24) close to the second side wall (23); the fourth vertical section (242) is arranged at one end of the third side wall (24) away from the second side wall (23); the second bending section (243) is arranged between the third vertical section (241) and the fourth vertical section (242); the second bending section (243) extends in a direction close to the first side wall (22); the second bending section (243) abuts against the electrode protection seat (10); and the first opening (51) is provided on the third vertical section (241).

8. The electrode protection structure according to any one of claims 1 to 7, characterized in that: One of the electrode protection seat (10) and the electrode protection cover (20) is provided with a card slot (26) arranged obliquely along the height direction of the electrode protection structure, and the other of the two is provided with a buckle (12) matched with the card slot (26).

9. The electrode protection structure according to any one of claims 1 to 7, characterized in that: A slide rail (25) is provided on one of the electrode protection cover (20) and the electrode protection seat (10), and a slide groove (13) matching the slide rail (25) is provided on the other of the two. The slide rail (25) penetrates into the slide groove (13) to guide and limit the electrode protection cover (20).

10. A battery cell module, characterized in that: The battery cell module includes the electrode protection structure according to any one of claims 1 to 9.

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