Battery cell coating apparatus

Abstract

This utility model discloses a battery cell coating device, belonging to the field of battery technology. The battery cell coating device of this utility model includes a first tongue, a first telescopic drive member, and a clamping drive member. The first tongue is connected to the drive end of the clamping drive member, and the fixed end of the clamping drive member is connected to the drive end of the first telescopic drive member. The first telescopic drive member drives the first tongue to move, pushing the protective film to one side of the battery cell along a second direction. Then, the clamping drive member drives the first tongue to move along the second direction and approach the battery cell, thereby pushing the protective film closer to the battery cell. This not only improves coating efficiency but also allows the protective film to adhere more tightly to the battery cell, which is beneficial for improving the protective effect of the protective film on the battery cell.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery cell coating device. Background Technology

[0002] During the battery production process, after the adapter is welded to the cell, the cell needs to be covered with a protective film to prevent the cell surface from being exposed and easily damaged.

[0003] In related technologies, to improve the efficiency of coating processes, some manufacturers use coating devices to replace manual labor in wrapping the protective film onto the outside of the battery cell. However, these coating devices use cylinders to drive a plate to move and push the protective film to one side of the battery cell. To prevent the plate from contacting the battery cell and causing damage, a certain distance needs to be maintained between the coating component and the battery cell. This can lead to problems such as wrinkles in the protective film, affecting its protective effect on the battery cell. Utility Model Content

[0004] The purpose of this invention is to provide a battery cell coating device that can not only improve coating efficiency, but also make the protective film adhere more tightly to the battery cell.

[0005] The battery cell coating device includes:

[0006] The first side coating mechanism includes a first tongue, a first telescopic drive, and a clamping drive. The first tongue is connected to the drive end of the clamping drive, and the fixed end of the clamping drive is connected to the drive end of the first telescopic drive, so that the first telescopic drive can drive the first tongue to move along a preset direction to push the protective film to one side of the battery cell along a second direction. The clamping drive can drive the first tongue to move along the second direction and approach the battery cell, and the second direction is perpendicular to the preset direction.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] The battery cell coating device of this invention drives the first tongue to move via a first telescopic drive member, thereby pushing the protective film to one side of the battery cell along the second direction; then, the clamping drive member drives the first tongue to move along the second direction and approach the battery cell, thereby pushing the protective film closer to the battery cell. This not only improves the coating efficiency, but also makes the protective film fit more tightly to the battery cell, which is beneficial to improving the protective effect of the protective film on the battery cell. Attached Figure Description

[0009] Figure 1 This is a first structural schematic diagram of the battery cell coating device in an embodiment of this utility model;

[0010] Figure 2 This is a schematic diagram of the second structure of the battery cell coating device in an embodiment of the present invention;

[0011] Figure 3 for Figure 1 Enlarged view of point A;

[0012] Figure 4 for Figure 2 Enlarged view of point B.

[0013] Figure label:

[0014] 1. Support platform; 2. Main wrapping mechanism; 21. Flip plate; 211. Total notch; 22. Flipping drive assembly; 221. Rocker arm; 222. Adapter; 223. Flipping drive component; 3. First side wrapping mechanism; 31. First tongue; 311. Tongue body; 312. Wrapping part; 313. First clearance structure; 314. Chamfer; 32. First telescopic drive component; 33. Clamping drive component; 34. Mounting component; 4. Second side wrapping mechanism; 41. Second tongue; 42. Second telescopic drive component; 5. Positioning mechanism; 51. Positioning component; 52. Positioning drive component. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] 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.

[0022] like Figures 1 to 4 As shown, this embodiment provides a battery cell coating device for covering the outside of a battery cell with a protective film. The protective film includes a bottom portion corresponding to the bottom surface of the battery cell, a main body portion corresponding to the large surface of the battery cell, and a first folded edge portion connected to the main body portion. In this embodiment, the protective film is a Mylar polyester film.

[0023] The cell coating device includes a support platform 1 and a main coating mechanism 2. The main coating mechanism 2 includes a flap 21 and a flip drive assembly 22. The flap 21 is rotatably disposed on one side of the support platform 1 along the first direction around a first axis. The flip drive assembly 22 can drive the flap 21 to rotate so as to cover the main body of the cell on one side along the first direction. The first direction and the first axis are perpendicular to the vertical direction.

[0024] By driving the flip plate 21 to rotate via the flip drive assembly 22, the flip plate 21 can be positioned parallel to the surface of the support platform 1, thereby laying the protective film flat on the support platform 1 and the flip plate 21. The battery cell is then placed on the protective film located on the support platform 1. Specifically, the bottom part of the protective film is located on the support platform 1, and the main body is located on the flip plate 21, so that the battery cell is placed on the bottom part of the protective film. Then, by driving the flip plate 21 to rotate via the flip drive assembly 22, the main body of the protective film can cover one side of the battery cell along the first direction.

[0025] The battery cell coating device also includes a first side coating mechanism 3, comprising a first tongue 31, a first telescopic drive 32, and a clamping drive 33. The first tongue 31 is connected to the drive end of the clamping drive 33, and the fixed end of the clamping drive 33 is connected to the drive end of the first telescopic drive 32, so that the first telescopic drive 32 can drive the first tongue 31 to move along a preset direction to push the protective film to one side of the battery cell along a second direction; the clamping drive 33 can drive the first tongue 31 to move along the second direction and approach the battery cell; the second direction is perpendicular to the preset direction. In this embodiment, the first axial direction is parallel to the second direction. Specifically, the first tongue 31 is movably disposed on the flip plate 21 along a direction perpendicular to the large surface of the flip plate 21 (i.e., the outer surface with the largest area among the multiple outer surfaces of the flip plate 21).

[0026] The first extension drive 32 drives the first tongue 31 to move, so as to push the first folded edge of the protective film to one side of the battery cell along the second direction; finally, the clamping drive 33 drives the first tongue 31 to move along the second direction and approach the battery cell, thereby causing the second tongue 41 to push the first folded edge close to the battery cell. This not only improves the wrapping efficiency, but also makes the protective film fit more tightly with the battery cell, which is beneficial to improving the protective effect of the protective film on the battery cell.

[0027] Optionally, the first tongue 31 includes a coating portion 312 that contacts the protective film, and the thickness of the coating portion 312 along the second direction ranges from 1.5mm to 3mm. In other words, the coating portion 312 has a thin plate-like structure. If the thickness of the coating portion 312 is too large, it will increase the gap between the first folded edge and the battery cell, which is not conducive to a tighter fit between the first folded edge and the battery cell. If the thickness of the coating portion 312 is too small, it will increase the risk of the protective film being punctured by the coating portion 312 when it contacts the protective film. By making the thickness of the coating portion 312 along the second direction range from 1.5mm to 3mm, the first folded edge can be more tightly fitted to the battery cell while still protecting the protective film.

[0028] For example, the thickness of the coating portion 312 along the second direction can be any value between 1.5mm and 3mm, such as 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3mm.

[0029] Optionally, such as Figure 1 and Figure 3 As shown, the first tongue 31 also includes a tongue body 311, the two ends of which are connected to the clamping drive member 33 and the coating part 312 respectively; along the second direction, the thickness of the coating part 312 is less than the thickness of the tongue body 311, which not only improves the installation stability of the first tongue 31, but also facilitates the first folded edge to fit more tightly with the battery cell through the coating part 312.

[0030] Optionally, the first tongue 31 is provided with a first clearance structure 313, which can avoid the connection between the first folded edge and the battery cell. It should be noted that after the protective film is wrapped around the outside of the battery cell, the first folded edge needs to be heat-fused to the lower plastic of the battery cell cover using a heat-fusion joint. By providing the first clearance structure 313 on the first tongue 31, interference with the welding operation of the heat-fusion joint can be avoided, improving the efficiency of the protective film fixing. Exemplarily, the first clearance structure 313 is a first notch. Alternatively, the first clearance structure 313 can also be a through hole, which is not limited here.

[0031] Optionally, the flap 21 is provided with at least one second clearance structure, which can avoid the connection between the main body and the battery cell. It should be noted that after the protective film is wrapped around the outside of the battery cell, the main body and the lower plastic of the battery cell cover need to be fixed by heat fusion (such as heat-fused wire). By providing the second clearance structure on the flap 21, interference of the flap 21 with the welding operation of the heat-fused wire can be avoided, improving the efficiency of the protective film fixing. Exemplarily, the second clearance structure is a second notch. As an alternative, the second clearance structure can also be a through hole, which is not limited here.

[0032] Optionally, the first tongue 31 includes a free end that can contact the protective film. The edge of the free end is chamfered 314, which can prevent the edge of the free end from being too sharp and increasing the risk of damage to the protective film, thus protecting the protective film.

[0033] Optionally, the first insert tongue 31 includes a mounting portion and a film insertion portion. The mounting portion is connected to the driving end of the clamping drive member 33, and the fixed end of the clamping drive member 33 is connected to the driving end of the first telescopic drive member 32. The film insertion portion is adjustablely positioned on the mounting portion along a third direction. The third direction is parallel to the flip plate 21 and perpendicular to the second direction, meaning that the third direction, the preset direction, and the second direction are all perpendicular to each other. By adjusting the position of the film insertion portion along the third direction, the film insertion portion can be located in the middle of the second folded edge portion in the vertical direction. This is beneficial for improving the uniformity of force on the protective film when the film insertion portion contacts the second folded edge portion, thus providing protection for the protective film.

[0034] For example, the mounting part and the membrane insertion part are fixedly connected by bolts and nuts. The mounting part is provided with multiple connection holes spaced apart along the third direction. By inserting bolts into different connection holes, the position of the membrane insertion part along the third direction can be adjusted.

[0035] Optionally, when the flip plate 21 is parallel to the table surface of the support platform 1, the upper surface of the flip plate 21 is flush with the table surface of the support platform 1. Thus, during the flip plate 21 flipping process, the main body of the protective film can always be located above the bottom surface, which is beneficial to improving the flatness of the protective film when it covers the battery cell.

[0036] Optionally, such as Figure 1 As shown, the tilting drive assembly 22 includes a rocker arm 221, a connector 222, and a tilting drive component 223. One end of the rocker arm 221 is fixedly connected to the rotating shaft of the flap 21, and the other end is rotatably connected to the connector 222. The tilting drive component 223 is used to drive the connector 222 to move in a direction perpendicular to the first axis, thereby converting the translational motion of the connector 222 into the rotational motion of the flap 21 through the rocker arm 221. Compared with using a motor to drive the flap rotation, this method is advantageous in reducing costs and provides overload protection for the tilting drive assembly 22. For example, the tilting drive component 223 is a cylinder.

[0037] It should be noted that the protective film usually consists of two main parts, which are respectively connected to opposite sides of the bottom surface.

[0038] In this embodiment, there are two flaps 21 and two flip drive components 22. The two flaps 21 are connected to the two flip drive components 22 in a one-to-one correspondence. The two flaps 21 are located on both sides of the support platform 1 along the first direction, so that the two main parts can be wrapped on both sides of the battery cell along the first direction at the same time through the two flaps 21, thereby improving the wrapping efficiency.

[0039] Furthermore, there are two first-side coating mechanisms 3, which are respectively provided on the two flip plates 21. Thus, the first folded edge connecting the two main parts can be simultaneously wrapped on one side of the battery cell along the second direction through the first tongue 31 of the two first-side coating mechanisms 3, thereby improving the coating efficiency.

[0040] Furthermore, each main body portion has a first folded edge portion on both opposite sides. Further, the first side coating mechanism 3 also includes a mounting member 34; in the same first side coating mechanism 3, there are two first tongues 31 and two clamping drive members 33. The two first tongues 31 are respectively located on both sides of the battery cell along the second direction, and the two first tongues 31 are connected to the two clamping drive members 33 in a one-to-one correspondence. The two clamping drive members 33 are both located on the mounting member 34, which is connected to the first telescopic drive member 32. Thus, the two first tongues 31 of the same first side coating mechanism 3 can move synchronously to cover the two first folded edges connected to the same main body portion on both sides of the battery cell along the second direction, improving coating efficiency. Simultaneously, in the same first side coating mechanism 3, the two clamping drive members 33 drive the two first tongues 31 to move in a one-to-one correspondence, which helps improve the movement accuracy of the first tongues 31, thereby making the force exerted by the two first tongues 31 on the battery cell more consistent, thus protecting both the protective film and the battery cell. For example, the clamping drive 33 is a cylinder. The first telescopic drive 32 is a cylinder.

[0041] Optionally, such as Figures 1 to 4As shown, when two first tongues 31 are provided on the same side of the battery cell along the second direction, the distance between the two first tongues 31 along the second direction is L; the thickness of the protective film is w, and the value of L / w ranges from 0.17 to 0.5. It should be noted that when two first tongues 31 are provided on the same side of the battery cell along the second direction, there needs to be a certain gap between the two first tongues 31 to accommodate the first folded edge. If the distance L between the two first tongues 31 is too large, it will increase the distance between the first folded edge and the battery cell, thus hindering a tighter fit between the first folded edge and the battery cell. If the distance L between the two first tongues 31 is too small, it will increase the risk of frictional damage between the first folded edge and the first tongue 31. By limiting the value of L / w to the range of 0.17 to 0.5, a tighter fit between the first folded edge and the battery cell can be achieved while reducing the risk of frictional damage between the first folded edge and the first tongue 31.

[0042] For example, the value of L / w can be any value between 0.17 and 0.5, such as 0.17, 0.18, 0.19, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 or 0.5.

[0043] In this embodiment, when the battery cell is provided with two first tongues 31 on the same side along the second direction, the two first tongues 31 are arranged sequentially along the second direction. That is, the free ends of the two first tongues 31 overlap, which avoids interference between the two first tongues 31 and helps to make the first folded edge cover the battery cell more smoothly.

[0044] Optionally, the flap 21 is provided with a third clearance structure corresponding one-to-one with the first tongue 31, thereby preventing interference between the first tongue 31 and the flap 21. For example, the third clearance structure is a third notch. Alternatively, the third clearance structure can also be a through hole, which is not limited here. In this embodiment, the second notch and the third notch are connected to form a total notch 211.

[0045] Optionally, the first tongue 31 has a Z-shaped structure to avoid interference between the first tongue 31 and the flap 21.

[0046] Optionally, the protective film further includes a second folded edge connected to the bottom surface; the cell coating device further includes a second side coating mechanism 4, which includes a second tongue 41 and a second telescopic drive member 42. The second tongue 41 is located on one side of the support platform 1 along the second direction, and the second tongue 41 and the first tongue 31 are vertically spaced apart. The second telescopic drive member 42 can drive the second tongue 41 to move vertically to cover the second folded edge on one side of the cell along the second direction. Thus, the cell coating device can cover all parts of the protective film on the outside of the cell, improving coating efficiency. Simultaneously, by making the second tongue 41 and the first tongue 31 vertically spaced apart, interference problems caused by contact between the second tongue 41 and the first tongue 31 can be avoided. For example, the second telescopic drive member 42 is a cylinder.

[0047] Furthermore, a second folded edge is provided on each of the opposite sides of the bottom surface. Furthermore, the battery cell coating device also includes two second-side coating mechanisms 4, which are respectively located on both sides of the battery cell along the second direction. This allows the two second folded edges to be simultaneously wrapped on both sides of the battery cell along the second direction via the two second tongues 41, thereby improving the coating efficiency.

[0048] Optionally, the battery cell coating device further includes two positioning mechanisms 5, which are respectively located on opposite sides of the battery cell. Each positioning mechanism 5 includes a positioning element 51 and a positioning drive element 52, which drives the positioning element 51 to move closer to or further away from the battery cell. By ensuring that the positioning elements 51 of both positioning mechanisms 5 are pressed against the battery cell, the battery cell can be clamped and fixed, improving the stability of the battery cell during the coating process and thus improving coating efficiency and quality. For example, the positioning drive element 52 is a cylinder.

[0049] Specifically, the positioning member 51 abuts against the top cover of the battery cell to clamp and fix the battery cell, thereby preventing interference with the protective film covering the battery cell. Optionally, the side of the positioning member 51 facing the battery cell has a positioning part that corresponds to the shape of the top cover of the battery cell, thereby improving the stability of the battery cell fixation and protecting the top cover from being damaged by the positioning member 51.

[0050] For example, the working principle of the battery cell coating device in this embodiment is as follows:

[0051] First, the flip plate 21 is rotated by the flip drive assembly 22 so that the flip plate 21 is parallel to the surface of the support platform 1. Then, the protective film is laid flat on the support platform 1 and the flip plate 21. Specifically, the bottom part of the protective film is located on the support platform 1, and the second tongue 41 abuts against the bottom of the second folded edge, thereby supporting the second folded edge and preventing it from bending. The main body and the first folded edge are both located on the flip plate 21, and the ends of the main body and the first folded edge away from the bottom part are located on the outside of the flip plate 21, so that the first tongue 31 abuts against the first folded edge to push the first folded edge to one side of the battery cell along the second direction. Then, the battery cell is placed on the bottom part of the protective film.

[0052] The flip plate 21 is driven to rotate by the flip drive assembly 22 so that the main body of the protective film covers one side of the battery cell along the first direction.

[0053] The second extension drive 42 drives the second tongue 41 to extend, so that the second tongue 41 covers the second folded edge on one side of the cell along the second direction.

[0054] The first tongue 31 is moved by the first telescopic drive member 32 to push the first folded edge of the protective film to one side of the cell along the second direction.

[0055] The clamping drive 33 drives the first tongue 31 to move along the second direction, thereby causing the second tongue 41 to push the first folded edge closer to the battery cell, so that the first folded edge can fit more tightly against the side of the battery cell along the second direction, thereby promoting a tighter fit between the entire protective film and the battery cell.

[0056] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An electrode core coating apparatus, characterized by comprising: include: The first side coating mechanism (3) includes a first tongue (31), a first telescopic drive (32), and a clamping drive (33). The first tongue (31) is connected to the drive end of the clamping drive (33), and the fixed end of the clamping drive (33) is connected to the drive end of the first telescopic drive (32), so that the first telescopic drive (32) can drive the first tongue (31) to move along a preset direction to push the protective film to one side of the battery cell along a second direction. The clamping drive (33) can drive the first tongue (31) to move along the second direction and approach the battery cell, and the second direction is perpendicular to the preset direction.

2. The cell coating apparatus of claim 1, wherein, The cell coating device further includes: Support platform (1); The main wrapping mechanism (2) includes a flap (21) and a flipping drive assembly (22). The flap (21) is rotatably disposed on one side of the support platform (1) along the first direction around the first axis. The flipping drive assembly (22) can drive the flap (21) to rotate. The first tongue (31) is located on one side of the support platform (1) along the second direction. The preset direction is perpendicular to the large surface of the flap (21). The first direction and the second direction are perpendicular to the vertical direction, and the first axis is parallel to the second direction.

3. The cell coating apparatus of claim 2, wherein, The first tongue (31) is provided with a first avoidance structure (313), which can avoid the connection between the protective film and the battery cell; And / or, the flap (21) is provided with at least one second avoidance structure, which is capable of avoiding the connection between the protective film and the battery cell.

4. The cell coating apparatus of claim 2, wherein When the flap (21) is parallel to the table surface of the support platform (1), the upper surface of the flap (21) is flush with the table surface of the support platform (1).

5. The cell coating apparatus of claim 2, wherein, The flip drive assembly (22) includes: A rocker arm (221) and a connector (222), wherein one end of the rocker arm (221) is fixedly connected to the rotating shaft of the flap (21), and the other end is rotatably connected to the connector (222); A flip drive (223) is used to drive the adapter (222) to move in a direction perpendicular to the first axis.

6. The cell coating apparatus of any one of claims 2-5, wherein, The first side-coating mechanism (3) also includes a mounting component (34); Two first tongues (31) and two clamping drive members (33) are provided. The two first tongues (31) are located on both sides of the battery cell along the second direction. The two first tongues (31) are connected to the two clamping drive members (33) in a one-to-one correspondence. The two clamping drive members (33) are provided on the mounting member (34). The mounting member (34) is connected to the first telescopic drive member (32).

7. The cell coating apparatus of claim 6, wherein, Two flaps (21) and two flip drive components (22) are provided. The two flaps (21) are connected to the two flip drive components (22) in a one-to-one correspondence. The two flaps (21) are located on both sides of the support platform (1) along the first direction. There are two first side wrapping mechanisms (3), and the two first side wrapping mechanisms (3) are respectively provided on the two flaps (21).

8. The cell coating apparatus of claim 7, wherein, When the battery cell has two first tongues (31) on the same side along the second direction, the distance between the two first tongues (31) along the second direction is L; the thickness of the protective film is W, and the value of L / W ranges from 0.17 to 0.

5.

9. The cell coating apparatus of claim 7, wherein, The cell coating device further includes a second side coating mechanism (4), which includes a second tongue (41) and a second telescopic drive member (42). The second tongue (41) is located on one side of the support platform (1) along the second direction. The second tongue (41) and the first tongue (31) are spaced apart in the vertical direction. The second telescopic drive member (42) can drive the second tongue (41) to move in the vertical direction.

10. The cell coating apparatus of claim 9, wherein, The battery cell coating device further includes two positioning mechanisms (5), which are respectively located on opposite sides of the battery cell; the positioning mechanism (5) includes a positioning element (51) and a positioning drive element (52), and the positioning drive element (52) can drive the positioning element (51) to move closer to or further away from the battery cell.

11. The cell coating apparatus of any one of claims 1-5, wherein, The first tongue (31) includes: The mounting part is connected to the driving end of the clamping drive (33), and the fixed end of the clamping drive (33) is connected to the driving end of the first telescopic drive (32). The membrane insertion part is adjustablely disposed on the mounting part along a third direction; the third direction, the preset direction, and the second direction are perpendicular to each other.

12. The cell coating apparatus of any one of claims 1-5, wherein, The first insert (31) includes a coating portion (312) that contacts the protective film, and the thickness of the coating portion (312) along the second direction ranges from 1.5 mm to 3 mm.

13. The cell coating apparatus of any one of claims 1-5, wherein, The first tongue (31) includes a free end that can contact the protective film, and the edge of the free end is chamfered (314).

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