Cleaning equipment suitable for reworked piece after film of N-type battery piece

Abstract

The invention relates to the field of battery piece cleaning, in particular to cleaning equipment suitable for a reworked piece after a film of an N-type battery piece. Comprising a cleaning pool, an auxiliary structure is arranged in the cleaning pool, the auxiliary structure comprises a connecting ring, the connecting ring is fixedly connected with the cleaning pool, a mounting rod is detachably connected to the interior of the connecting ring, a plurality of sliding rings are slidably connected to the arc surface of the mounting rod, and a connecting frame is fixedly connected to the arc surfaces of the sliding rings; and the arc surface of the sliding ring is in threaded connection with a screw rod, the screw rod abuts against the mounting rod, four sliding grooves are formed in the inner wall of the connecting frame, sliding blocks are slidably connected to the inner walls of the sliding grooves, and clamping plates are fixedly connected to the sides, close to each other, of the two sliding blocks. The cleaning equipment suitable for the reworked piece after the film of the N-type battery piece has the advantages that the reworked piece after the film with fingerprints and greasy dirt can be cleaned up, secondary cleaning of the reworked piece is avoided, and manpower loss is reduced.

Description

Technical Field

[0001] The present invention relates to the field of battery cell cleaning, and in particular to a cleaning device suitable for N-type battery cell post-film rework. Background Art

[0002] At present, the basic process for cleaning the reworked wafers after filming of N-type Topcon cells is to first pickle the reworked wafers with high concentration of HF to remove SiNx on the surface of the silicon wafer, then remove the poly layer of the silicon wafer by alkaline washing, and finally remove SiO2 by pickling. However, when there are fingerprints or oil stains on the surface of the reworked wafers after filming, the cleaning process will not be able to clean them thoroughly. The fingerprints on the reworked wafers after filming are basically oil stains. When the silicon wafers are cleaned, the oil stains will protect the SiNx on the battery cells, resulting in the fingerprint area not being cleaned thoroughly, and the unloaded silicon wafers will have fingerprint-shaped dirt. The general solution is to wash it again for the second time, because the cleaning process of the reworked wafers includes alkaline washing, and the main components of the alkaline washing tank are NaoH and H2O2. H2O2 can effectively clean the oil stains, so the oil stains on the surface have been removed by alkaline washing in the first cleaning rework, and the fingerprint-shaped dirt can be cleaned by the second cleaning. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a cleaning device suitable for N-type battery cell rework.

[0004] In order to solve the above technical problems, the present invention provides a cleaning device suitable for N-type battery film rework sheets, comprising: a cleaning pool, an auxiliary structure is arranged inside the cleaning pool, the auxiliary structure comprises a connecting ring, the connecting ring is fixedly connected to the cleaning pool, a mounting rod is detachably connected inside the connecting ring, a plurality of slip rings are slidably connected to the circular arc surface of the mounting rod, a connecting frame is fixedly connected to the circular arc surface of the slip ring, a screw is threadedly connected to the circular arc surface of the slip ring, the screw abuts against the mounting rod, four sliding grooves are opened on the inner wall of the connecting frame, a slider is slidably connected to the inner wall of the sliding groove, a clamping plate is fixedly connected to one side where two sliders are close to each other, a spring is arranged inside the sliding groove, and both ends of the spring are fixedly connected to the slider and the sliding groove respectively, a plurality of limit blocks are fixedly connected to the upper end of the mounting rod, a connecting rod is fixedly connected to the interior of the limit block, a connecting rod is fixedly connected to the circular arc surface of the connecting rod, a connecting rod is fixedly connected to the upper end of the connecting rod, and an auxiliary rod is fixedly connected to the upper end of the connecting rod.

[0005] The effect achieved by the above components is: when the battery cell needs to be cleaned, the mounting rod is pulled to move, and the mounting rod drives the slip ring to move. When the slip ring needs to be adjusted, the screw is turned to loosen it. After adjusting to the appropriate position, the screw is twisted to fix it. Then the battery cell is loaded into the connecting frame, the two clamps are separated, the clamp drives the slider to move, the slider drives the spring to stretch, and then the battery cell is placed between the two clamps, and then the clamp spring is loosened to contract and drive the clamp to fix the battery cell. Then the mounting rod is installed in the connecting ring. After cleaning, the auxiliary rod is pulled to move, the auxiliary rod drives the fixed rod to move, the fixed rod drives the connecting rod to move, the connecting rod drives the connecting rod to move, the connecting rod drives the limit block to move, the limit block drives the mounting rod to move, the mounting rod drives the slip ring and the connecting frame to move, and then the connecting frame drives the battery cell to move, and then the battery cell is removed.

[0006] Preferably, the upper end of the auxiliary rod is fixedly connected to a handle bar, and the cross-section of the handle bar is circular.

[0007] The effect achieved by the above components is that when the auxiliary rod needs to be pulled, the handle bar can be directly pulled, and the handle bar drives the auxiliary rod to move, and the handle bar makes it more convenient to move the auxiliary rod.

[0008] Preferably, a limiting rod is fixedly connected inside the sliding groove, and the limiting rod is slidably connected to the sliding block.

[0009] The effects achieved by the above components are as follows: the limiting rod can limit the slider to prevent the slider from deviating when sliding on the inner wall of the slide groove, thereby improving the sliding stability of the slider.

[0010] Preferably, the cross section of the limiting rod is circular, and the spring is sleeved on the arc surface of the limiting rod.

[0011] The effect achieved by the above components is that the limiting rod can limit the spring, thereby preventing the spring from being deformed during use, thereby increasing the service life of the spring.

[0012] Preferably, a protective pad is fixedly connected to each other's sides of the two clamping plates, and the protective pad is a rubber pad.

[0013] The effect achieved by the above components is that the protective pad can increase the friction between the clamping plate and the battery cell, thereby preventing the protective pad from sliding when clamping and fixing the battery cell.

[0014] Preferably, the cross-section of the connecting rod is rectangular, and the limiting rod is a stainless steel rod.

[0015] The effects achieved by the above components are: the stainless steel material can increase the service life of the connecting rod and prevent the connecting rod from rusting during use.

[0016] Preferably, a connecting structure is provided on both sides of the cleaning pool, the connecting structure includes a screw rod, the screw rod is fixedly connected to the cleaning pool, a positioning rod is fixedly connected to the side of the cleaning pool close to the screw rod, a connecting ring is fixedly connected to the side of the cleaning pool close to the screw rod, a connecting tube is slidably connected to the inner wall of the connecting ring, a fixing ring is fixedly connected to the circular arc surface of the connecting tube, connecting plates are fixedly connected to both sides of the fixing ring, a circular ring is fixedly connected to the end of the connecting plate away from the fixing ring, the two circular rings are slidably connected to the positioning rod and the screw rod respectively, a threaded ring is threadedly connected to the circular arc surface of the screw rod, and the threaded ring is slidably connected to the circular ring.

[0017] The effect achieved by the above components is: when the connecting pipe needs to be installed, align the connecting pipe with the connecting ring, then insert the connecting pipe into the connecting ring, and then the connecting pipe drives the fixed ring to move, the fixed ring drives the connecting plate to move, the connecting plate drives the circular ring to move, the circular ring slides on the arc surface of the positioning rod and the screw rod, and after sliding to the appropriate position, the threaded ring is rotated to move, the threaded ring moves on the screw rod, the screw rod drives the circular ring to move, the circular ring drives the connecting plate to move, the connecting plate drives the fixed ring to move, and the fixed ring drives the connecting pipe to connect with the connecting ring.

[0018] Preferably, the arc surface of the threaded ring is provided with a plurality of notches, and the plurality of notches are evenly distributed on the threaded ring.

[0019] The effect achieved by the above components is that the notch can increase the friction between the threaded ring and the hand, thereby preventing slippage when the threaded ring is turned.

[0020] Preferably, a sealing sleeve is fixedly connected to the inner wall of the connecting ring, and the cross-section of the sealing sleeve is circular.

[0021] The effect achieved by the above components is that the sealing sleeve can increase the sealing between the connecting ring and the connecting pipe, thereby preventing leakage when the connecting ring and the connecting pipe are connected.

[0022] Preferably, the cross section of the positioning rod is circular, and the positioning rod is a stainless steel rod.

[0023] The effects achieved by the above components are: the positioning rod can position the ring to prevent the ring from shifting when sliding, and the stainless steel material can prevent the positioning rod from rusting when in use.

[0024] Compared with the related art, the cleaning equipment for N-type battery film rework provided by the present invention has the following beneficial effects:

[0025] By setting an auxiliary structure, in the prior art, when there are fingerprints or dirt such as oil on the surface of the reworked wafer after filming, the cleaning process will not be able to clean it thoroughly. The fingerprints on the reworked wafer after filming are basically oil. When the silicon wafer is cleaned, the oil will protect the SiNx on the battery cell, resulting in the fingerprint area not being cleaned thoroughly. The unloaded silicon wafer has fingerprint-type dirt. The general solution is to wash it again for the second time. Because the cleaning process of the reworked wafer includes alkaline washing, the main components of the alkaline washing tank are NaoH and H2O2, and H2O2 can effectively clean the oil. Therefore, the oil on the surface has been removed by alkaline washing in the first cleaning and rework, and the fingerprint-type dirt can be cleaned by the second cleaning. The device achieves the purpose of cleaning the reworked wafer after filming such as fingerprints and oil, and adds a pre-cleaning before pickling. The components of the pre-cleaning are NaoH and H2O2, which are mainly used to remove fingerprints and oil on the surface of the silicon wafer, thereby improving the effect of the reworked wafer after filming such as fingerprints and oil.

[0026] By setting up the connection structure, it is possible to easily install and disassemble the connection pipe, and it is also possible to easily support the connection pipe, so as to avoid dirt on the connection pipe and blockage of the connection pipe when the battery cell is cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a cleaning device suitable for N-type battery cell rework after film forming provided by the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the auxiliary structure shown;

[0029] Figure 3 for Figure 2 A schematic diagram of a portion of the structure shown;

[0030] Figure 4 for Figure 3 The enlarged view of point A is shown;

[0031] Figure 5 for Figure 2 The local structure schematic diagram shown;

[0032] Figure 6 for Figure 1 The connection structure diagram is shown.

[0033] Numbers in the figure: 1. cleaning tank; 2. auxiliary structure; 201. mounting rod; 202. connecting ring; 203. connecting frame; 204. screw; 205. slip ring; 206. limit block; 207. handle; 208. slide groove; 209. splint; 210. protective pad; 211. slider; 212. spring; 213. limit rod; 214. connecting rod; 215. connecting rod; 216. fixing rod; 217. auxiliary rod; 3. connecting structure; 301. connecting ring; 302. connecting pipe; 303. positioning rod; 304. ring; 305. sealing sleeve; 306. connecting plate; 307. fixing ring; 308. threaded ring; 309. notch; 310. screw. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] See also Figures 1 to 5 The embodiment of the present invention provides a cleaning device suitable for N-type battery cell rework, comprising: a cleaning pool 1, an auxiliary structure 2 is provided inside the cleaning pool 1, and connection structures 3 are provided on both sides of the cleaning pool 1.

[0037] In the embodiments of the present invention, please refer to Figures 1 to 5The auxiliary structure 2 includes a connecting ring 202, which is fixedly connected to the cleaning tank 1. The interior of the connecting ring 202 is detachably connected to a mounting rod 201. The arc surface of the mounting rod 201 is slidably connected to a plurality of slip rings 205. The arc surface of the slip ring 205 is fixedly connected to a connecting frame 203. The arc surface of the slip ring 205 is threadedly connected to a screw 204. The screw 204 abuts against the mounting rod 201. The inner wall of the connecting frame 203 is provided with four slide grooves 208. The inner wall of the slide groove 208 is slidably connected to a slider 211. Two A clamping plate 209 is fixedly connected to the side where the sliders 211 are close to each other, a spring 212 is arranged inside the slide groove 208, and both ends of the spring 212 are fixedly connected to the slider 211 and the slide groove 208 respectively. A plurality of limit blocks 206 are fixedly connected to the upper end of the mounting rod 201, and a connecting rod 215 is fixedly connected to the inside of the limit block 206. The arc surface of the connecting rod 215 is fixedly connected to a connecting rod 214, and the upper end of the connecting rod 214 is fixedly connected to a fixing rod 216, and the upper end of the fixing rod 216 is fixedly connected to an auxiliary rod 217. When the battery cell needs to be cleaned, the mounting rod 201 is pulled to move, and the mounting rod 201 drives the slip ring 205 to move. When the slip ring 205 needs to be adjusted, the screw 204 is turned to loosen it. After adjusting to a suitable position, the screw 204 is screwed to fix it. Then the battery cell is loaded into the connection frame 203, and the two clamps 209 are separated. The clamp 209 drives the slider 211 to move, and the slider 211 drives the spring 212 to stretch. Then the battery cell is placed between the two clamps 209, and then the clamp 209 is loosened, and the spring 212 is contracted to drive the clamp 209 to fix the battery cell, and then the mounting The rod 201 is installed in the connecting ring 202. After cleaning, the auxiliary rod 217 is pulled to move. The auxiliary rod 217 drives the fixed rod 216 to move. The fixed rod 216 drives the connecting rod 214 to move. The connecting rod 214 drives the connecting rod 215 to move. The connecting rod 215 drives the limit block 206 to move. The limit block 206 drives the installation rod 201 to move. The installation rod 201 drives the slip ring 205 and the connecting frame 203 to move. Then the connecting frame 203 drives the battery cell to move, and then the battery cell is removed. The upper end of the auxiliary rod 217 is fixedly connected with a handle 207, and the cross section of the handle 207 is circular. When the auxiliary rod 217 needs to be pulled, the handle 207 can be directly pulled. The handle 207 drives the auxiliary rod 217 to move. The handle 207 makes it more convenient to move the auxiliary rod 217. The inner part of the slide 208 is fixedly connected with a limit rod 213, and the limit rod 213 is slidably connected with the slider 211. The limiting rod 213 can limit the slider 211 to prevent the slider 211 from deviating when sliding on the inner wall of the slide groove 208, thereby improving the sliding stability of the slider 211. The cross-section of the limiting rod 213 is circular, and the spring 212 is sleeved on the arc surface of the limiting rod 213.The limiting rod 213 can limit the spring 212 to prevent the spring 212 from deforming during use, thereby increasing the service life of the spring 212. The two clamps 209 are fixedly connected to the side close to each other with a protective pad 210, which is a rubber pad. The protective pad 210 can increase the friction between the clamp 209 and the battery cell to prevent the protective pad 210 from sliding when clamping and fixing the battery cell. The cross-section of the connecting rod 214 is rectangular, and the limiting rod 213 is a stainless steel rod. The stainless steel material can increase the service life of the connecting rod 214 and prevent the connecting rod 214 from rusting during use.

[0038] In the embodiments of the present invention, please refer to Figure 1 and Figure 6The connection structure 3 includes a screw rod 310, which is fixedly connected to the cleaning pool 1. A positioning rod 303 is fixedly connected to the side of the cleaning pool 1 close to the screw rod 310. A connecting ring 301 is fixedly connected to the side of the cleaning pool 1 close to the screw rod 310. A connecting tube 302 is slidably connected to the inner wall of the connecting ring 301. A fixing ring 307 is fixedly connected to the arc surface of the connecting tube 302. Both sides of the fixing ring 307 are fixedly connected to connecting plates 306. One end of the connecting plate 306 away from the fixing ring 307 is fixedly connected to a circular ring 304. The two circular rings 304 are respectively connected to the positioning rod 303. The screw rod 310 is slidably connected, and the arc surface of the screw rod 310 is threadedly connected with a threaded ring 308, and the threaded ring 308 is slidably connected with the ring 304. When the connecting pipe 302 needs to be installed, the connecting pipe 302 is aligned with the connecting ring 301, and then the connecting pipe 302 is inserted into the connecting ring 301, and then the connecting pipe 302 drives the fixing ring 307 to move, the fixing ring 307 drives the connecting plate 306 to move, and the connecting plate 306 drives the ring 304 to move, and the ring 304 slides on the arc surface of the positioning rod 303 and the screw rod 310, and slides to a suitable position. After the thread ring 308 is placed, it is rotated to move, the thread ring 308 moves on the screw rod 310, the screw rod 310 drives the ring 304 to move, the ring 304 drives the connecting plate 306 to move, the connecting plate 306 drives the fixing ring 307 to move, and the fixing ring 307 drives the connecting pipe 302 to connect with the connecting ring 301. The arc surface of the thread ring 308 is provided with a plurality of notches 309, and the plurality of notches 309 are evenly distributed on the thread ring 308. The notches 309 can increase the friction between the thread ring 308 and the hand to avoid the rotation of the thread ring 3 08, the inner wall of the connecting ring 301 is fixedly connected with a sealing sleeve 305, the cross section of the sealing sleeve 305 is in the shape of a circular ring 304, the sealing sleeve 305 can increase the sealing between the connecting ring 301 and the connecting tube 302, and avoid leakage when the connecting ring 301 and the connecting tube 302 are connected, the cross section of the positioning rod 303 is circular, the positioning rod 303 is a stainless steel rod, the positioning rod 303 can position the circular ring 304, and avoid the circular ring 304 from shifting when sliding, and the stainless steel material can prevent the positioning rod 303 from rusting when in use.

[0039] The working principle of the cleaning equipment for N-type battery cell rework provided by the present invention is as follows: when the battery cell needs to be cleaned, the installation rod 201 is pulled to move, and the installation rod 201 drives the slip ring 205 to move. When the slip ring 205 needs to be adjusted, the screw rod 204 is rotated to loosen it. After adjusting to a suitable position, the screw rod 204 is screwed to fix it. Then the battery cell is loaded into the connecting frame 203, and the two clamping plates 209 are separated. The clamping plate 209 drives the slider 211 to move. The slider 211 drives the spring 212 to stretch. Then the battery cell is placed between the two clamping plates 209, and then the clamping plate 209 is loosened. The spring 212 contracts and drives the clamping plate 209 to fix the battery cell. Then the installation rod 201 is installed in the connecting ring 202. After cleaning, the auxiliary rod 217 is pulled to move. The auxiliary rod 217 drives the fixing rod 216 to move. The fixing rod 216 drives the connecting rod 214 to move. The connecting rod 214 drives The connecting rod 215 is moved, the connecting rod 215 drives the limit block 206 to move, the limit block 206 drives the installation rod 201 to move, the installation rod 201 drives the slip ring 205 and the connecting frame 203 to move, and then the connecting frame 203 drives the battery sheet to move, and then the battery sheet is removed. When the auxiliary rod 217 needs to be pulled, the handle bar 207 can be directly pulled, and the handle bar 207 drives the auxiliary rod 217 to move. The handle bar 207 makes it more convenient to move the auxiliary rod 217 The limiting rod 213 can limit the slider 211 to prevent the slider 211 from deviating when sliding on the inner wall of the slide groove 208, thereby improving the sliding stability of the slider 211. The limiting rod 213 can limit the spring 212 to prevent the spring 212 from deforming during use, thereby improving the service life of the spring 212. The protective pad 210 can increase the friction between the splint 209 and the battery cell to prevent the protective pad 210 from sliding when clamping and fixing the battery cell.

[0040] When the connecting tube 302 needs to be installed, align the connecting tube 302 with the connecting ring 301, and then insert the connecting tube 302 into the connecting ring 301, and then the connecting tube 302 drives the fixing ring 307 to move, the fixing ring 307 drives the connecting plate 306 to move, the connecting plate 306 drives the circular ring 304 to move, the circular ring 304 slides on the arc surface of the positioning rod 303 and the screw rod 310, and after sliding to the appropriate position, the threaded ring 308 is rotated to move, the threaded ring 308 moves on the screw rod 310, the screw rod 310 drives the circular ring 304 to move, and the circular ring 304 drives the connecting plate 306 to move. The connecting plate 306 drives the fixing ring 307 to move, and the fixing ring 307 drives the connecting tube 302 to connect with the connecting ring 301. The notch 309 can increase the friction between the threaded ring 308 and the hand to avoid sliding when the threaded ring 308 is rotated. The sealing sleeve 305 can increase the sealing between the connecting ring 301 and the connecting tube 302 to avoid leakage when the connecting ring 301 and the connecting tube 302 are connected. The positioning rod 303 can position the ring 304 to avoid the ring 304 from shifting when sliding, and the stainless steel material can prevent the positioning rod 303 from rusting when in use.

[0041] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cleaning device suitable for N-type battery film rework, characterized in that: include: A cleaning pool (1), wherein an auxiliary structure (2) is provided inside the cleaning pool (1), wherein the auxiliary structure (2) comprises a connecting ring (202), wherein the connecting ring (202) is fixedly connected to the cleaning pool (1), wherein a mounting rod (201) is detachably connected inside the connecting ring (202), wherein the arc surface of the mounting rod (201) is slidably connected to a plurality of slip rings (205), wherein the arc surface of the slip ring (205) is fixedly connected to a connecting frame (203), wherein the arc surface of the slip ring (205) is threadedly connected to a screw rod (204), wherein the screw rod (204) is in contact with the mounting rod (201), wherein the inner wall of the connecting frame (203) is provided with four sliding grooves (208), wherein the inner wall of the sliding groove (208) is provided with a plurality of sliding rings (205) and wherein the plurality of sliding rings (205) are ... A slider (211) is slidably connected, and a clamping plate (209) is fixedly connected to one side where the two sliders (211) are close to each other. A spring (212) is arranged inside the slide groove (208), and the two ends of the spring (212) are respectively fixedly connected to the slider (211) and the slide groove (208). The upper end of the mounting rod (201) is fixedly connected to a plurality of limit blocks (206), and the inside of the limit block (206) is fixedly connected to a connecting rod (215), and the arc surface of the connecting rod (215) is fixedly connected to a connecting rod (214), and the upper end of the connecting rod (214) is fixedly connected to a fixing rod (216), and the upper end of the fixing rod (216) is fixedly connected to an auxiliary rod (217).

2. The cleaning device for N-type battery sheet rework according to claim 1, characterized in that: The upper end of the auxiliary rod (217) is fixedly connected to a handlebar (207), and the cross section of the handlebar (207) is circular.

3. The cleaning device for N-type battery cell rework after film forming according to claim 1 is characterized in that: A limiting rod (213) is fixedly connected inside the sliding groove (208), and the limiting rod (213) is slidably connected to the sliding block (211).

4. The cleaning device for N-type battery sheet rework according to claim 3 is characterized in that: The cross section of the limiting rod (213) is circular, and the spring (212) is sleeved on the arc surface of the limiting rod (213).

5. The cleaning device for N-type battery cell rework after film forming according to claim 1 is characterized in that: A protective pad (210) is fixedly connected to one side of the two clamping plates (209) that are close to each other, and the protective pad (210) is a rubber pad.

6. The cleaning device for N-type battery cell rework after film forming according to claim 1 is characterized in that: The cross section of the connecting rod (214) is rectangular, and the limiting rod (213) is a stainless steel rod.

7. The cleaning device for N-type battery cell rework after film forming according to claim 1 is characterized in that: Both sides of the cleaning pool (1) are provided with connection structures (3), and both sides of the cleaning pool (1) are provided with connection structures (3), and the connection structures (3) include a screw rod (310), and the screw rod (310) is fixedly connected to the cleaning pool (1), and a positioning rod (303) is fixedly connected to the side of the cleaning pool (1) close to the screw rod (310), and a connecting ring (301) is fixedly connected to the side of the cleaning pool (1) close to the screw rod (310), and the inner wall of the connecting ring (301) is slidably connected to a connecting pipe (302). The arc surface of the connecting tube (302) is fixedly connected to a fixing ring (307), both sides of the fixing ring (307) are fixedly connected to connecting plates (306), one end of the connecting plate (306) away from the fixing ring (307) is fixedly connected to a circular ring (304), the two circular rings (304) are respectively slidably connected to the positioning rod (303) and the screw rod (310), the arc surface of the screw rod (310) is threadedly connected to a threaded ring (308), and the threaded ring (308) is slidably connected to the circular ring (304).

8. The cleaning device for N-type battery sheet rework according to claim 7, characterized in that: The arc surface of the threaded ring (308) is provided with a plurality of notches (309), and the plurality of notches (309) are evenly distributed on the threaded ring (308).

9. The cleaning device for N-type battery sheet rework according to claim 7, characterized in that: A sealing sleeve (305) is fixedly connected to the inner wall of the connecting ring (301), and the cross section of the sealing sleeve (305) is in the shape of a circular ring (304).

10. The cleaning device for N-type battery cell rework after film forming according to claim 7, characterized in that: The cross section of the positioning rod (303) is circular, and the positioning rod (303) is a stainless steel rod.

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