Lithium battery coating film offcut cleaning and recycling device

Abstract

The utility model provides a lithium battery coating film offcut cleaning and recycling device which is used for removing water-based and oil-based impurities on coating film offcuts and at least comprises an unwinding mechanism, a cleaning mechanism, an extraction mechanism, an air drying mechanism and a winding mechanism, the unwinding mechanism is used for installing the coating film offcuts, and the winding mechanism is used for winding the coating film offcuts. The cleaning mechanism is used for cleaning the coating film offcut to remove a coating and impurities on the surface of the coating film offcut, the extraction mechanism is used for extracting and cleaning the coating film offcut to remove hole blocking impurities in holes of the coating film offcut, and the air drying mechanism is used for drying the cleaned coating film offcut. And the winding mechanism is used for rewinding the dried coating film offcut. According to the utility model, coatings and impurities on the offcut of the coating film can be effectively removed, the influence of hole blocking impurities contained in holes of the coating film on the subsequent granulation process is avoided, and meanwhile, the recycling rate of the offcut of the coating film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material cleaning, in particular to a device for cleaning and recovering edge materials of a lithium battery coating film. Background Art

[0002] The separator is a crucial component of lithium-ion batteries. It forms a microporous membrane between the positive and negative electrodes, effectively isolating the electrode materials and preventing short circuits within the battery caused by direct contact between the positive and negative electrodes. Furthermore, the separator allows lithium ions to flow freely between the positive and negative electrodes. To improve the mechanical properties and ion transport conductivity of lithium battery separators, they are coated with inorganic or organic coatings. Inorganic coating materials primarily include alumina and boehmite, while organic coatings include polymethyl methacrylate (PMMA) and vinylidene fluoride (PVDF).

[0003] Currently, the scraps of membranes cut from the production line after winding can be directly used for pelletizing and recycling. However, the scraps of membranes (coated membranes) coated with inorganic or organic coatings cannot be used directly, resulting in resource waste and increased production costs. To address the recycling issue of coated membrane scraps, the scraps can be cleaned to remove any aqueous or oily components or impurities before reuse. However, existing cleaning technology uses deionized water to clean the scraps without extracting and cleaning them. As a result, the pores of the cleaned coated membrane still contain oily impurities, which not only affects the subsequent pelletizing process but also reduces the recovery rate of the scraps. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium battery coating film edge material cleaning and recovery device, which can effectively remove the aqueous, oily components or impurities contained in the coating film edge material, avoid the oily impurities contained in the coating film pores from affecting the subsequent granulation process, and at the same time improve the recovery rate of the coating film edge material.

[0005] To achieve the above-mentioned purpose, the utility model provides a lithium battery coating film edge material cleaning and recovery device, which at least includes an unwinding mechanism, a cleaning mechanism, an extraction mechanism, an air drying mechanism and a winding mechanism;

[0006] The unwinding mechanism is used to install the coating film edge material;

[0007] The cleaning mechanism is used to clean the coating film edge material to remove the coating and impurities on the surface of the coating film edge material;

[0008] The extraction mechanism is used to extract and clean the coating film edge material to remove the impurities that block the holes in the coating film edge material;

[0009] The air drying mechanism is used to dry the cleaned coating film scraps;

[0010] The winding mechanism is used to rewind the dried coating film edge material.

[0011] The beneficial effects of the lithium battery coating film edge cleaning and recovery device provided by the utility model are that the coating film edge to be cleaned can automatically complete the cleaning process through the unwinding mechanism, the cleaning mechanism, the extraction mechanism, the air-drying mechanism and the winding mechanism; and after the cleaning mechanism completes the cleaning, it is further extracted and cleaned in the extraction mechanism, which can not only effectively remove the coating and impurities on the coating film edge, but also avoid the influence of pore-clogging impurities in the coating film pores on the subsequent granulation process, and at the same time improve the cleaning efficiency and recovery rate of the coating film edge.

[0012] In some embodiments, the extraction mechanism includes an extraction chamber and a circulation system;

[0013] The extraction chamber is soaked with a first cleaning solvent, and the first cleaning solvent is used to extract and clean the coating film edge material;

[0014] The circulation system is connected to the extraction chamber and is used to circulate and replenish the first cleaning solvent immersed in the extraction chamber. This advantageously allows the circulation system to replenish the first cleaning solvent promptly when the level of the first cleaning solvent in the extraction chamber drops, eliminating manual inspection time and improving cleaning efficiency.

[0015] In some embodiments, the extraction chamber includes a plurality of first rotating rollers;

[0016] A plurality of the first rotating rollers are located inside and outside the extraction chamber;

[0017] The first rotating roller outside the extraction chamber can transfer the coating film scrap into the extraction chamber, and the first rotating roller inside the extraction chamber is used to immerse the coating film scrap in the first cleaning solvent.

[0018] In some embodiments, the unwinding mechanism includes an unwinding roller, and the rewinding mechanism includes a rewinding roller;

[0019] The lengths of the unwinding roller and the winding roller are adjustable in length, which has the beneficial effect of being able to adjust according to coating film scraps of different widths to accommodate coating film scraps of different widths.

[0020] In some embodiments, the cleaning mechanism includes a first cleaning mechanism, a second cleaning mechanism, and a third cleaning mechanism arranged in sequence;

[0021] The first cleaning mechanism includes a first cleaning chamber, wherein the first cleaning chamber is soaked with a second cleaning solvent, and the second cleaning solvent is used to clean the coating film scrap;

[0022] The second cleaning mechanism includes a second cleaning chamber, wherein the second cleaning chamber is soaked with a third cleaning solvent, and the third cleaning solvent is used to rinse the coating film edge material;

[0023] The third cleaning mechanism includes a third cleaning chamber; the third cleaning chamber is used to flush the coating film edge material.

[0024] In some embodiments, the first cleaning chamber and the second cleaning chamber are trough-shaped structures, and an ultrasonic cleaning system or a laser cleaning system is installed in the first cleaning chamber and the second cleaning chamber. The beneficial effect is that the use of the ultrasonic cleaning system or the laser cleaning can further improve the cleaning effect.

[0025] In some embodiments, the first cleaning chamber includes a plurality of second rotating rollers;

[0026] A plurality of second rotating rollers are located inside and outside the first cleaning chamber;

[0027] The second rotating roller outside the first cleaning chamber can transfer the coating film scrap into the first cleaning chamber, and the second rotating roller inside the first cleaning chamber is used to immerse the coating film scrap in the second cleaning solvent.

[0028] In some embodiments, the first cleaning chamber further includes a plurality of first brush rollers;

[0029] The first brush rollers are arranged in the first cleaning chamber for brushing the coating film scraps. The beneficial effect is that the first brush rollers are arranged in the first cleaning chamber to improve the cleaning effect of the coating film scraps.

[0030] In some embodiments, the second cleaning chamber includes a plurality of third rotating rollers;

[0031] A plurality of the third rotating rollers are located inside and outside the second cleaning chamber;

[0032] The third rotating roller outside the second cleaning chamber can transfer the coating film scrap into the second cleaning chamber, and the third rotating roller inside the second cleaning chamber is used to soak the coating film scrap in the third cleaning solvent.

[0033] In some embodiments, the second cleaning chamber further comprises a plurality of second brush rollers;

[0034] A plurality of second brush rollers are arranged in the second cleaning chamber for brushing the coating film edges.

[0035] In some embodiments, the third cleaning chamber includes a spray cleaning device;

[0036] The spray device is located inside the third cleaning chamber and can flush the coating film scraps in the third cleaning chamber. The beneficial effect is that flushing the coating film scraps by the spray device can completely remove the second cleaning solvent that was not removed in the second cleaning chamber.

[0037] In some embodiments, the third cleaning chamber further includes a plurality of fourth rotating rollers;

[0038] Several of the fourth rotating rollers are located inside and outside the third cleaning chamber. Several of the fourth rotating rollers are arranged at intervals in the third cleaning chamber so that the spraying device can flush the coating film edge material. The fourth rotating rollers outside the third cleaning chamber can transfer the coating film edge material into the third cleaning chamber.

[0039] In some embodiments, the air-drying mechanism includes an air-drying chamber and a drying system;

[0040] The drying system is arranged in the air drying chamber for drying the cleaned coating film scraps. Its beneficial effect is that the air drying chamber can remove the residual moisture on the coating film scraps, ensuring that the coating film scraps are dried before entering the winding process.

[0041] In some embodiments, the air-drying chamber includes a plurality of fifth rotating rollers;

[0042] A plurality of the fifth rotating rollers are located inside and outside the air-drying chamber;

[0043] The fifth rotating rollers arranged at intervals in the air-drying chamber can enable the drying system to dry the coating film edge material, and the fifth rotating rollers outside the air-drying chamber can transport the coating film edge material into the air-drying chamber, and transport the coating film edge material in the air-drying chamber to the winding mechanism.

[0044] The beneficial effect of the utility model is that the coating film edge material cleaning and recovery device provided by the utility model can completely remove water-based and oily impurities on the coating film edge material, thereby improving the cleaning efficiency and recovery rate of the coating film edge material. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a rendering of the lithium battery coating film edge material cleaning and recovery device provided in the embodiment of the utility model.

[0046] Reference numerals:

[0047] 1. Unwinding mechanism; 2. First cleaning mechanism; 21. First cleaning chamber; 211. Second rotating roller; 212. First brush roller; 3. Second cleaning mechanism; 31. Second cleaning chamber; 311. Third rotating roller; 312. Second brush roller; 4. Third cleaning mechanism; 41. Third cleaning chamber; 411. Fourth rotating roller; 412. Spraying device; 5. Extraction mechanism; 51. Extraction chamber; 511. First rotating roller; 6. Air-drying mechanism; 61. Air-drying chamber; 611. Fifth rotating roller; 7. Rewinding mechanism; DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The words "including" and similar words used in this article mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Unless otherwise specified, the "connection" described in this article can be a direct connection or an indirect connection, that is, a connection through an intermediate.

[0049] In view of the problems existing in the prior art, the embodiment of the present invention provides a lithium battery coating film edge material cleaning and recovery device, referring to Figure 1 , at least includes an unwinding mechanism 1, a cleaning mechanism, an extraction mechanism 5, an air-drying mechanism 6 and a winding mechanism 7; the unwinding mechanism 1 is used to install the coating film edge material; the cleaning mechanism is used to clean the coating film edge material to remove the coating and impurities on the surface of the coating film edge material; the extraction mechanism is used to extract and clean the coating film edge material to remove the impurities blocking the holes in the coating film edge material; the air-drying mechanism 6 is used to dry the cleaned coating film edge material; the winding mechanism 7 is used to rewind the dried coating film edge material.

[0050] In this embodiment, the coating film edge material to be cleaned can automatically complete the cleaning process through the unwinding mechanism, the cleaning mechanism, the extraction mechanism, the air-drying mechanism and the winding mechanism; the cleaning mechanism can remove the coating and impurities on the surface of the coating film edge material, and the extraction mechanism 5 can remove the pore-clogging impurities in the coating film pores that are not removed by the cleaning mechanism. After the coating film edge material is cleaned in the cleaning mechanism, it is further extracted and cleaned in the extraction mechanism, which can not only effectively remove the coating and impurities on the coating film edge material, but also avoid the pore-clogging impurities in the coating film pores affecting the subsequent granulation process, while improving the cleaning efficiency and recovery rate of the coating film edge material.

[0051] In some embodiments, the extraction mechanism 5 includes an extraction chamber 51 and a circulation system; the extraction chamber 51 is soaked with a first cleaning solvent, and the first cleaning solvent is used to extract and clean the coating film edge material; the circulation system is connected to the extraction chamber 51, and the circulation system is used to circulate and replenish the first cleaning solvent soaked in the extraction chamber.

[0052] In this embodiment, the first cleaning solvent is an organic solvent, which can be used as an extractant to extract and clean the coated fabric to remove the organic coating. The circulation system can be an internal circulation system, and when the liquid level of the organic solvent drops, the liquid can be circulated and replenished in time.

[0053] In some specific embodiments, the organic solvent is dichloromethane, which can extract and remove organic coatings such as polymethyl methacrylate or vinylidene fluoride homopolymer on the coating film.

[0054] In some embodiments, reference Figure 1 The extraction chamber 51 includes a plurality of first rotating rollers 511; the plurality of first rotating rollers 511 are located inside and outside the extraction chamber 51; the first rotating rollers 511 outside the extraction chamber 51 can transfer the coating film edge material into the extraction chamber 51, and the first rotating rollers 511 inside the extraction chamber 51 are used to immerse the coating film edge material in the first cleaning solvent.

[0055] In this embodiment, reference Figure 1 The first rotating roller outside the extraction chamber 511 can be arranged above the extraction mechanism 5, and can lift the coating film edge material in the cleaning mechanism and then sink it into the extraction chamber 51.

[0056] In a specific embodiment, the first rotating roller is a rotatable roller. Two rows of rollers may be spaced apart within the extraction chamber 51, with both rows of rollers spaced apart. The coating film scraps may sequentially pass through the rollers in the first and second rows within the extraction chamber 51. The number of rollers in the second row may be one less than that in the first row, forming a W-shaped movement curve.

[0057] In some embodiments, the unwinding mechanism 1 includes an unwinding roller, and the rewinding mechanism 7 includes a rewinding roller; the roller lengths of the unwinding roller and the rewinding roller are telescopically adjustable.

[0058] In this embodiment, a driving mechanism may be used to drive the unwinding roller and the winding roller to unwind or rewind, and the driving mechanism may be pneumatically driven or electrically driven.

[0059] In some embodiments, reference Figure 1The cleaning mechanism includes a first cleaning mechanism 2, a second cleaning mechanism 3 and a third cleaning mechanism 4 arranged in sequence; the first cleaning mechanism 2 includes a first cleaning chamber 21, the first cleaning chamber 21 is soaked with a second cleaning solvent, and the second cleaning solvent is used to clean the coating film edge material; the second cleaning mechanism 3 includes a second cleaning chamber 31, the second cleaning chamber 31 is soaked with a third cleaning solvent, and the third cleaning solvent is used to rinse the coating film edge material; the third cleaning mechanism 4 includes a third cleaning chamber 41; the third cleaning chamber 41 is used to rinse the coating film edge material.

[0060] In some embodiments, the first cleaning chamber 21 and the second cleaning chamber 31 are trough-shaped structures, and an ultrasonic cleaning system or a laser cleaning system is provided in the first cleaning chamber 21 and the second cleaning chamber 31 .

[0061] In this embodiment, the material of the trough-shaped body is a material resistant to organic solvents, preferably stainless steel; the cleaning speed of the ultrasonic cleaning system or the laser cleaning system can be adjusted according to the thickness of the coating film edge material.

[0062] In some embodiments, reference Figure 1 The first cleaning chamber 21 includes a plurality of second rotating rollers 211; the plurality of second rotating rollers 211 are located inside and outside the first cleaning chamber 21; the second rotating rollers 211 outside the first cleaning chamber 21 can transfer the coating film scraps into the first cleaning chamber 21, and the second rotating rollers 211 inside the first cleaning chamber 21 are used to immerse the coating film scraps in the second cleaning solvent.

[0063] In this embodiment, reference Figure 1 The second rotating roller 211 outside the first cleaning chamber 21 can be set above the first cleaning mechanism 2 near the unwinding mechanism 1, and can lift the coating film edge unwound by the unwinding mechanism 1 and then sink it into the first cleaning chamber 21.

[0064] In a specific embodiment, the second rotating roller 211 is a rotatable roller. Two rows of such rollers may be spaced apart within the first cleaning chamber 21, and the rollers in both rows are spaced apart. The coating film scraps may sequentially pass through the rollers in the first and second rows within the first cleaning chamber 21. The number of rollers in the second row may be one less than that in the first row, forming a W-shaped movement curve.

[0065] In some embodiments, the first cleaning chamber 21 further includes a plurality of first brush rollers 212 ; the plurality of first brush rollers 212 are disposed in the first cleaning chamber 21 for brushing the coating film scraps.

[0066] In this embodiment, a plurality of first brush rollers 212 are disposed on both sides of the W-shaped moving path of the coating film edge material in the first cleaning chamber 21 to clean the coating film edge material in a sandwich manner.

[0067] In a specific embodiment, the first brush roller 212 is a rotatable friction brush ball. There are at least five pairs of friction brush balls within the first cleaning chamber 21, and the rotation of the friction brush balls is adjustable. During cleaning, the second cleaning solvent immersed in the first cleaning chamber 21 can be an organic solvent, the depth of which can submerge the second rotating roller 211. The coating film scraps are cleaned in the first cleaning chamber 21 through the cooperation of the organic solvent, the second rotating roller 211, and the friction brush balls.

[0068] In some embodiments, reference Figure 1 The second cleaning chamber 31 includes several third rotating rollers 311; several of the third rotating rollers 311 are located inside and outside the second cleaning chamber 31; the third rotating rollers 311 outside the second cleaning chamber 31 can transfer the coating film scraps into the second cleaning chamber 31, and the third rotating rollers 311 inside the second cleaning chamber 31 are used to soak the coating film scraps in the third cleaning solvent.

[0069] In this embodiment, the third rotating roller 311 outside the second cleaning chamber 31 can be set above the second cleaning mechanism 3 close to the first cleaning mechanism 2, and can lift the coating film edge material cleaned by the first cleaning mechanism 2 and then sink it into the second cleaning chamber 31.

[0070] In a specific embodiment, the third rotating roller 311 is a rotatable roller. Two rows of such rollers may be spaced apart within the second cleaning chamber 31, and both rows of rollers are spaced apart. The coating film scraps may sequentially pass through the rollers in the first and second rows within the second cleaning chamber 31. The number of rollers in the second row may be one less than that in the first row, forming a W-shaped movement curve.

[0071] In some embodiments, the second cleaning chamber 31 further includes a plurality of second brush rollers 312 ; the plurality of second brush rollers 312 are disposed in the second cleaning chamber 31 for brushing the coating film scraps.

[0072] In this embodiment, a plurality of second brush rollers 312 are disposed on both sides of the W-shaped moving path of the coating film edge material in the second cleaning chamber 31 to clean the coating film edge material in a sandwich manner.

[0073] In a specific embodiment, the second brush roller 312 is a rotatable friction brush ball. The number of friction brush balls within the second cleaning chamber 31 is no less than five pairs, and the rotation of the friction brush balls is adjustable. During cleaning, the third cleaning solvent immersed in the second cleaning chamber 31 can be clean water, the depth of which can submerge the third rotating roller 311. The coating film scraps are rinsed in the second cleaning chamber 31 using the clean water, the third rotating roller 311, and the friction brush balls to remove organic solvent from the coating film scraps. To enhance the rinsing effect, the clean water can be replaced periodically to ensure that it is free of excessive impurities.

[0074] In some embodiments, the third cleaning chamber 41 includes a spraying device 412 ; the spraying device 412 is located inside the third cleaning chamber 41 , and the spraying device 412 can flush the coating film scraps in the third cleaning chamber 41 .

[0075] In this embodiment, the spraying device 412 has a water gun nozzle, which can flush the coating film scraps inside the third cleaning chamber 41 to completely remove the second cleaning solvent.

[0076] In some embodiments, reference Figure 1 The third cleaning chamber 41 also includes a plurality of fourth rotating rollers 411; the plurality of fourth rotating rollers 411 are located inside and outside the third cleaning chamber 41, and the plurality of fourth rotating rollers 411 are arranged at intervals in the third cleaning chamber 41 so that the spraying device 412 can flush the coating film edge material, and the fourth rotating rollers 411 outside the third cleaning chamber 41 can transfer the coating film edge material into the third cleaning chamber 41.

[0077] In this embodiment, the fourth rotating roller 411 outside the third cleaning chamber 41 can be set above the third cleaning mechanism 4 close to the second cleaning mechanism 3, and can lift the coating film edge material cleaned by the second cleaning mechanism 3 and then sink it into the third cleaning chamber 41.

[0078] In some embodiments, the air-drying mechanism 6 includes an air-drying chamber 61 and a drying system; the drying system is disposed in the air-drying chamber 61 for drying the cleaned coating film scraps.

[0079] In some embodiments, reference Figure 1The air-drying chamber 61 includes a plurality of fifth rotating rollers 611; the plurality of fifth rotating rollers 611 are located inside and outside the air-drying chamber 61; the plurality of fifth rotating rollers 611 are arranged at intervals in the air-drying chamber 61 so that the drying system can dry the coating film edge material, and the fifth rotating rollers 611 outside the air-drying chamber 61 can convey the coating film edge material into the air-drying chamber 61, and convey the coating film edge material in the air-drying chamber 61 to the winding mechanism 7.

[0080] In this embodiment, the fifth rotating roller 511 outside the air-drying chamber 61 can be arranged above the air-drying mechanism 6 near the extraction mechanism 5 and the winding mechanism 7. The coating film edge material after cleaning by the extraction mechanism 5 can be lifted and then sunk into the air-drying chamber 61 for drying treatment, and then lifted and sunk to the winding mechanism 7 to complete the entire cleaning process.

[0081] The rotation speed of the rotating roller mentioned in this embodiment can be adjusted, and the residence time can also be set according to cleaning needs.

[0082] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A lithium battery coating film edge material cleaning and recovery device, characterized in that: At least include unwinding mechanism, cleaning mechanism, extraction mechanism, air drying mechanism and rewinding mechanism; The unwinding mechanism is used to install the coating film edge material; The cleaning mechanism is used to clean the coating film edge material to remove the coating and impurities on the surface of the coating film edge material; The extraction mechanism is used to extract and clean the coating film edge material to remove the impurities that block the holes in the coating film edge material; The air drying mechanism is used to dry the cleaned coating film scraps; The winding mechanism is used to rewind the dried coating film edge material.

2. The lithium battery coating film scrap cleaning and recovery device according to claim 1, characterized in that: The extraction mechanism includes an extraction chamber and a circulation system; The extraction chamber is soaked with a first cleaning solvent, and the first cleaning solvent is used to extract and clean the coating film edge material; The circulation system is communicated with the extraction chamber, and is used for circulating and replenishing the first cleaning solvent soaked in the extraction chamber.

3. The lithium battery coating film scrap cleaning and recovery device according to claim 2, characterized in that: The extraction chamber includes a plurality of first rotating rollers; A plurality of the first rotating rollers are located inside and outside the extraction chamber; The first rotating roller outside the extraction chamber can transfer the coating film scrap into the extraction chamber, and the first rotating roller inside the extraction chamber is used to immerse the coating film scrap in the first cleaning solvent.

4. The lithium battery coating film scrap cleaning and recovery device according to claim 1, characterized in that: The unwinding mechanism includes an unwinding roller, and the rewinding mechanism includes a rewinding roller; The roller lengths of the unwinding roller and the winding roller are telescopically adjustable.

5. The lithium battery coating film scrap cleaning and recovery device according to claim 1, characterized in that: The cleaning mechanism includes a first cleaning mechanism, a second cleaning mechanism and a third cleaning mechanism which are arranged in sequence; The first cleaning mechanism includes a first cleaning chamber, wherein the first cleaning chamber is soaked with a second cleaning solvent, and the second cleaning solvent is used to clean the coating film scrap; The second cleaning mechanism includes a second cleaning chamber, wherein the second cleaning chamber is soaked with a third cleaning solvent, and the third cleaning solvent is used to rinse the coating film edge material; The third cleaning mechanism includes a third cleaning chamber; the third cleaning chamber is used to flush the coating film edge material.

6. The lithium battery coating film scrap cleaning and recovery device according to claim 5, characterized in that: The first cleaning chamber and the second cleaning chamber are trough-shaped structures, and an ultrasonic cleaning system or a laser cleaning system is provided in the first cleaning chamber and the second cleaning chamber.

7. The lithium battery coating film scrap cleaning and recovery device according to claim 5 or 6, characterized in that: The first cleaning chamber includes a plurality of second rotating rollers; A plurality of second rotating rollers are located inside and outside the first cleaning chamber; The second rotating roller outside the first cleaning chamber can transfer the coating film scrap into the first cleaning chamber, and the second rotating roller inside the first cleaning chamber is used to immerse the coating film scrap in the second cleaning solvent.

8. The lithium battery coating film scrap cleaning and recovery device according to claim 7, characterized in that: The first cleaning chamber also includes a plurality of first brush rollers; A plurality of the first brush rollers are arranged in the first cleaning chamber for brushing the coating film edges.

9. The lithium battery coating film scrap cleaning and recovery device according to claim 5 or 6, characterized in that: The second cleaning chamber includes a plurality of third rotating rollers; A plurality of the third rotating rollers are located inside and outside the second cleaning chamber; The third rotating roller outside the second cleaning chamber can transfer the coating film scrap into the second cleaning chamber, and the third rotating roller inside the second cleaning chamber is used to soak the coating film scrap in the third cleaning solvent.

10. The lithium battery coating film scrap cleaning and recovery device according to claim 9, characterized in that: The second cleaning chamber also includes a plurality of second brush rollers; A plurality of second brush rollers are arranged in the second cleaning chamber for brushing the coating film edges.

11. The lithium battery coating film scrap cleaning and recovery device according to claim 5, characterized in that: The third cleaning chamber includes a spray cleaning device; The spraying device is located inside the third cleaning chamber, and the spraying device can flush the coating film edge material in the third cleaning chamber.

12. The lithium battery coating film scrap cleaning and recovery device according to claim 11, characterized in that: The third cleaning chamber further includes a plurality of fourth rotating rollers; Several of the fourth rotating rollers are located inside and outside the third cleaning chamber. Several of the fourth rotating rollers are arranged at intervals in the third cleaning chamber so that the spraying device can flush the coating film edge material. The fourth rotating rollers outside the third cleaning chamber can transfer the coating film edge material into the third cleaning chamber.

13. The lithium battery coating film scrap cleaning and recovery device according to claim 1, characterized in that: The air-drying mechanism includes an air-drying chamber and a drying system; The drying system is arranged in the air drying chamber and is used for drying the cleaned coating film scraps.

14. The lithium battery coating film scrap cleaning and recovery device according to claim 13, characterized in that: The air-drying chamber includes a plurality of fifth rotating rollers; A plurality of the fifth rotating rollers are located inside and outside the air-drying chamber; The fifth rotating rollers arranged at intervals in the air-drying chamber can enable the drying system to dry the coating film edge material, and the fifth rotating rollers outside the air-drying chamber can transport the coating film edge material into the air-drying chamber, and transport the coating film edge material in the air-drying chamber to the winding mechanism.

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