A film peeling device for lithium ion battery and a film peeling method thereof

By combining a laser emitter and a dividing wheel into a composite dividing structure and using an elastic peeling roller, the problems of film re-adhesion and electrostatic entanglement in lithium-ion battery recycling are solved, achieving an efficient and stable peeling process and ensuring continuous operation of the equipment and the integrity of the peeling.

CN122177989APending Publication Date: 2026-06-09ANHUI JIETU NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI JIETU NEW ENERGY TECH CO LTD
Filing Date
2026-04-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

During the lithium-ion battery recycling process, the film is prone to problems such as re-adhesion, stringing, and cut closure after laser cutting. Waste film is also prone to sticking, entanglement, and blockage due to static electricity and residual adhesive, which affects the peeling effect and continuous operation of the equipment.

Method used

A composite segmentation structure consisting of a laser emitter, a segmenting wheel, a wind box, an electric heating grid, and fan blades is used for preheating and melting. Combined with an elastic telescopic peeling roller and a high-friction pressure strip, hot air is sprayed from inclined air holes to soften the cut. With the smooth coating and a vibrating feeding structure consisting of wedge blocks and top blocks, stable film peeling and non-entanglement feeding are achieved.

Benefits of technology

It significantly improves the cutting quality and smoothness of the lithium-ion battery recycling process, ensures the integrity of the film peeling, avoids equipment failure, and enables automated and continuous operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122177989A_ABST
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Abstract

The application provides a lithium ion battery film stripping device and a film stripping method thereof, and belongs to the technical field of lithium ion battery recycling. The device comprises a feeding module, a conveying module and a supporting frame. The conveying module is fixedly connected with a clamping placement plate. The supporting frame is connected with a discharging module. The device further comprises a segmentation assembly for cutting the battery film, and a film stripping assembly for stripping the cut film. The device has the following advantages: the laser emitter, the segmentation wheel and the hot air composite cutting structure are used to preheat and melt cut the film and then mechanically roll cut the film. The hot air expansion joint, dust removal and anti-rebonding are used to effectively solve the problems of carbonization, closure and wire drawing of the cut, improve the cutting quality, and realize stable film tearing by using the elastic film stripping roller and high-friction strip pressing. In combination with the smooth coating and the knocking vibration discharging structure, the film material adsorption and wall hanging are broken, complete film stripping and smooth discharging are realized.
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Claims

1. A peeling device for lithium-ion batteries, comprising a feeding module (1), a conveying module (4), and a support frame (7), wherein the conveying module (4) is fixedly connected to a clamping and placing plate (5), and the support frame (7) is connected to a discharging module (6), characterized in that, It further includes: A splitting component (2), fixedly connected to the feeding module (1), and the splitting component (2) is used for cutting the battery film; A film stripping component (3), fixedly connected to the support frame (7), and the film stripping component (3) is used for the falling off of the film after cutting.

2. The peeling device for a lithium-ion battery according to claim 1, characterized in that, The support frame (7) is located below the feeding module (1), and the support frame (7) is slidably connected to the conveying module (4).

3. The lithium-ion battery peeling device according to claim 1, characterized in that, The splitting component (2) includes a support frame (22) and a mounting plate (24), the support frame (22) is fixedly connected to the feeding module (1), a cylinder (21) is fixedly connected to the side wall of the support frame (22), and one end of the cylinder (21) penetrates through the side wall of the support frame (22) and is fixedly connected to the mounting plate (24).

4. The peeling device for a lithium-ion battery according to claim 3, characterized in that, The mounting plate (24) is fixedly connected with a laser emitter (23), the mounting plate (24) is arranged in a "C" shape, the mounting plate (24) is rotatably connected with a rotating shaft (27), a first motor (25) is fixedly connected to the side wall of the mounting plate (24), and one end of the rotating shaft (27) penetrates through the side wall of the mounting plate (24) and is fixedly connected to the first motor (25).

5. A peeling device for a lithium-ion battery according to claim 4, characterized in that, The splitting component (2) further includes a splitting wheel (26) and a wind box (29), the splitting wheel (26) is fixedly connected to the outer wall of the rotating shaft (27), a cavity (210) is formed in the side wall of the splitting wheel (26), a plurality of air blowing holes (28) are formed in the inner wall of the cavity (210) and are distributed in a circumferential array, the air blowing holes (28) have an inclination angle with the side wall of the splitting wheel (26), and the splitting wheel (26) is located above the clamping and placing plate (5).

6. The peeling device for a lithium-ion battery according to claim 5, characterized in that, The wind box (29) is fixedly connected to the mounting plate (24), one end of the wind box (29) is rotatably connected to the inner wall of the cavity (210), the other end of the wind box (29) is fixedly connected with an electric heating mesh (211), the electric heating mesh (211) is sleeved on the outer wall of the rotating shaft (27), and a fan blade (212) is arranged inside the wind box (29), and the fan blade (212) is fixedly connected to the outer wall of the rotating shaft (27).

7. The lithium-ion battery peeling device according to claim 1, characterized in that, The film stripping component (3) includes a discharging frame (31), the discharging frame (31) is fixedly connected to the support frame (7), the discharging frame (31) is located on one side of the clamping and placing plate (5), a second motor (32) is fixedly connected to the side wall of the discharging frame (31), a rotating column (33) is rotatably connected to the inner wall of the discharging frame (31), one end of the rotating column (33) penetrates through the side wall of the discharging frame (31) and is fixedly connected to the second motor (32), and a plurality of wedge-shaped blocks (37) are fixedly connected to the inner wall of the discharging frame (31) and are distributed in a circumferential array.

8. A peeling device for a lithium-ion battery according to claim 7, characterized in that, The outer wall of the rotating column (33) is fixedly connected to several fixed cylinders (38) arranged in a circular array. The inner wall of the fixed cylinder (38) is slidably connected to a movable rod (39). The inside of the fixed cylinder (38) is provided with a telescopic spring (310). The two ends of the telescopic spring (310) are fixedly connected to the side wall of the movable rod (39) and the inner wall of the fixed cylinder (38), respectively. The end of the movable rod (39) away from the telescopic spring (310) is fixedly connected to a film peeling roller (34). The side wall of the film peeling roller (34) is fixedly connected to a pressure strip (35).

9. A peeling device for a lithium-ion battery according to claim 8, characterized in that, A rotating ring (36) is fixedly connected to the outer wall of the rotating column (33). A placement groove (311) is provided on the side wall of the rotating ring (36). A return spring (312) is provided inside the placement groove (311). A top block (313) is slidably connected to the inner wall of the placement groove (311). The two ends of the return spring (312) are fixedly connected to the inner wall of the placement groove (311) and the side wall of the top block (313), respectively. The top block (313) is slidably connected to the wedge block (37).

10. A peeling method for a lithium-ion battery peeling device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: First, put the battery into the loading module (1), start the corresponding drive unit, and fix the battery onto the clamping and placing plate (5) in sequence; S2: Subsequently, the conveyor module (4) is started to move the loaded clamping and placing plate (5) to the side of the dividing component (2), and the clamping and placing plate (5) thereafter is placed below the feeding module (1) to wait for feeding; S3: Then, start the segmentation component (2) to cut the battery film; S4: Then, the cut workpiece is transported to one side of the film peeling assembly (3) through the conveying module (4) for film peeling, and finally the battery is discharged through the unloading module (6).