Uniform slurry coating structure for lithium ion battery processing

By controlling the uniform coating of slurry during the lithium-ion battery processing through dispersion and aggregation mechanisms, the problems of irregular coating and air bubbles are solved, thereby improving processing efficiency and product quality.

CN223733178UActive Publication Date: 2025-12-30NANTONG YINGPAI LITHIUM BATTERY CO LTD
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Patent Information

Application Number
CN202520469162.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-12-30
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

In the current lithium-ion battery processing slurry coating process, irregularities on both sides of the coating lead to low processing efficiency and material waste. At the same time, air bubbles are prone to occur during the coating process, affecting product quality.

Method used

The system employs a dispersing mechanism and a gathering mechanism. A motor drives a turntable and a folding rod to move the dispersing plate, which disperses the slurry and works in conjunction with a scraper. The gathering plate adjusts the spacing between the gathering plates to ensure uniform slurry coating.

Benefits of technology

It effectively avoids the generation of air bubbles in the slurry during the leveling process, improves coating quality, reduces material waste, and enhances processing efficiency and product consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lithium battery processing, and discloses a lithium ion battery processing slurry uniform coating structure which comprises a workbench and a first motor, a second motor is controlled to rotate, a sliding plate reciprocates on a second support under the action of a rotating disc and a folding rod, and then a dispersing plate is driven to reciprocate, during use, foil is flatly laid on the workbench, slurry is poured on the workbench, a first motor and the second motor are further controlled to enable a mounting base to move, and the dispersing plate reciprocates; the slurry is dispersed on the foil before being scraped by the scraper, a large number of bubbles are prevented from appearing in the scraping process of the slurry, the product quality is greatly improved, a gathering seat is made to move in a third support by controlling a second bolt, and then the distance between gathering plates on the two sides is changed. And the slurry can be neatly coated on the surface of the foil by being matched with a scraper.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery processing technology, specifically to a uniform coating structure for lithium-ion battery processing slurry. Background Technology

[0002] The lithium battery slurry uniform coating structure is a special coating structure used in the lithium battery manufacturing process. By precisely adjusting the gap between the foil and the scraper, and then moving the scraper, the precisely measured slurry is evenly coated on the foil, providing a solid foundation for the excellent performance of lithium batteries.

[0003] Chinese patent CN219765864U discloses a uniform coating structure for lithium-ion battery processing slurry. The structure includes a workbench, a transmission component mounted above it, a support column mounted at its bottom, a drying component mounted at one end of the workbench, and a leveling component, a production component, and a dust removal component mounted above the transmission component. The production component is located between the leveling and dust removal components, with the leveling component positioned closer to the drying component. The dust removal component includes a bellows and two sets of second mounting blocks. This invention eliminates static electricity on the surface of the garment through an electrostatic elimination mechanism. Simultaneously, the bellows transmits air through its output end to a ventilation pipe, which cleans dust from the coating surface through vents at its bottom. This prevents dust residue on the coating, reducing the likelihood of quality defects and improving product quality.

[0004] The above structure has the effect of cleaning dust, but when the existing structure is used to coat the lithium-ion battery processing slurry, the slurry is in liquid form, resulting in irregular coating on both sides. This not only requires further cutting and processing, but also leads to slurry waste. At the same time, a large number of air bubbles will appear during the slurry leveling process, resulting in poor product quality. Therefore, there is a need to provide a uniform coating structure for lithium-ion battery processing slurry. Utility Model Content

[0005] The purpose of this invention is to provide a uniform coating structure for lithium-ion battery processing slurry, in order to solve the problems of low processing efficiency and material waste caused by irregular slurry on both sides of the coating, as well as the large number of air bubbles that occur during the coating process, which cannot be handled by the existing structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a uniform coating structure for lithium-ion battery processing slurry, comprising a worktable and a first motor. Guide rails are fixedly installed on both sides of the worktable. A mounting base is slidably installed between the two guide rails and fixedly mounted on the output end of the first motor. A first bracket is mounted on the mounting base. Two first bolts are threaded in parallel on the first bracket. A scraper is rotatably mounted on one end of each of the two first bolts. A dispersing mechanism is provided on the mounting base. The dispersing mechanism includes a second bracket. A second motor is fixedly installed on one end of the second bracket, and a sliding plate is slidably installed in the middle of the second bracket. Several dispersing plates are fixedly installed in parallel on the lower part of the sliding plate. A turntable is fixedly installed on the output end of the second motor. A folding rod is rotatably installed between the turntable and the sliding plate.

[0007] Preferably, several of the dispersion plates are fixedly installed in parallel at an incline on the underside of the sliding plate, and the inclination directions of the dispersion plates on both sides of the sliding plate are opposite.

[0008] Preferably, a small hole is provided on one side of the turntable, and one end of the folding rod is embedded and rotatably installed in the small hole.

[0009] Preferably, the mounting base is provided with a gathering mechanism, the gathering mechanism includes a third bracket, both ends of the third bracket are threaded with second bolts, one end of the second bolt is fixedly installed with a limiting seat, a gathering seat is slidably installed on the outside of the limiting seat inside the third bracket, and a gathering plate is fixedly installed on the lower side of the gathering seat.

[0010] Preferably, the gathering plate is composed of two vertical plates and one inclined plate, with one vertical plate in close contact with the surface of the scraper and the other vertical plate located below the second support.

[0011] Preferably, the first bracket, the second bracket, and the third bracket are all fitted with rubber rings, and three grooves are provided side by side on both sides of the mounting base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) This structure is used for uniform coating of slurry in lithium-ion battery processing. By controlling the rotation of the second motor, the sliding plate will reciprocate under the action of the turntable and the folding rod, which in turn drives the dispersing plate to reciprocate. In use, foil is laid flat on the worktable and slurry is poured on it. The first and second motors are further controlled to move the mounting base and make the dispersing plate reciprocate, so that the slurry is dispersed on the foil before being scraped flat by the scraper. This avoids a large number of air bubbles in the slurry during the scraping process and greatly improves the product quality.

[0014] 2) This structure is used for uniform coating of slurry in lithium-ion battery processing. By controlling the second bolt, the gathering seat moves within the third bracket, thereby changing the distance between the gathering plates on both sides. In use, the gathering plates can prevent the slurry from splashing under the movement of the dispersing plate and gather the slurry. When used with a scraper, the slurry will be neatly coated on the foil surface. The structure is highly practical and flexible in operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a uniform coating structure for lithium-ion battery processing slurry in an embodiment of the present invention.

[0016] Figure 2 This is a cross-sectional view of the dispersing mechanism in an embodiment of this utility model;

[0017] Figure 3 As an embodiment of this utility model Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 This is a three-dimensional structural diagram of the gathering mechanism in an embodiment of the present utility model;

[0019] Figure 5 As an embodiment of this utility model Figure 4 Enlarged view of B in the middle.

[0020] In the diagram: 1. Workbench; 2. First motor; 3. Guide rail; 4. Mounting base; 5. First bracket; 6. First bolt; 7. Scraper; 8. Dispersing mechanism; 801. Second bracket; 802. Second motor; 803. Sliding plate; 804. Dispersing plate; 805. Turntable; 806. Folding rod; 9. Gathering mechanism; 901. Third bracket; 902. Second bolt; 903. Limiting seat; 904. Gathering seat; 905. Gathering plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Combination Figures 1-5A uniform coating structure for lithium-ion battery processing slurry includes a worktable 1 and a first motor 2. Guide rails 3 are fixedly installed on both sides of the worktable 1. A mounting base 4 is slidably installed between the two guide rails 3 and fixedly installed on the output end of the first motor 2. A first bracket 5 is installed on the mounting base 4. Two first bolts 6 are threaded in parallel on the first bracket 5. A scraper 7 is rotatably installed on one end of the two first bolts 6. A dispersing mechanism 8 is provided on the mounting base 4. The dispersing mechanism 8 includes a second bracket 801. A second motor 802 is fixedly installed on one end of the second bracket 801. A sliding plate 803 is slidably installed in the middle of the second bracket 801. Several dispersing plates 804 are fixedly installed in parallel on the lower part of the sliding plate 803. A turntable 805 is fixedly installed on the output end of the second motor 802. A folding rod 806 is rotatably installed between the turntable 805 and the sliding plate 803.

[0024] See Figure 2 and Figure 3 Furthermore, several dispersion plates 804 are inclined and fixedly installed on the lower side of the sliding plate 803, and the inclination directions of the dispersion plates 804 on both sides of the sliding plate 803 are opposite. A small hole is opened on one side of the turntable 805, and one end of the folding rod 806 is embedded and rotatably installed in the small hole.

[0025] Specifically, a gap is left between the scraper 7 and the worktable 1 by the first bolt 6, and the rotation of the second motor 802 is further controlled. The output end of the second motor 802 is equipped with a turntable 805, and the turntable 805 is rotatably connected to the sliding plate 803 by the bending rod 806. The sliding plate 803 will move back and forth in the second bracket 801, thereby causing several dispersing plates 804 to move back and forth. In use, the foil is laid flat on the worktable 1, and the slurry is poured in front of the mounting base 4. The first motor 2 is controlled to move the mounting base 4. Under the action of the dispersing plates 804, the slurry will be dispersed on the foil. Under the action of the scraper 7, the slurry will be coated on the foil.

[0026] Example 2

[0027] Combination Figure 1 , Figure 4 and Figure 5 The mounting base 4 is provided with a gathering mechanism 9, which includes a third bracket 901. Both ends of the third bracket 901 are threaded with second bolts 902. One end of the second bolts 902 is fixedly installed with a limiting seat 903. A gathering seat 904 is sleeved on the outside of the limiting seat 903 and slidably installed inside the third bracket 901. A gathering plate 905 is fixedly installed on the lower side of the gathering seat 904.

[0028] See Figure 4 and Figure 5Furthermore, based on Embodiment 1, the gathering plate 905 is composed of two vertical plates and one inclined plate, with one vertical plate closely attached to the surface of the scraper 7 and the other vertical plate located below the second bracket 801. Rubber rings are fitted on the outside of the first bracket 5, the second bracket 801 and the third bracket 901, and three grooves are provided side by side on both sides of the mounting base 4.

[0029] Specifically, by controlling the second bolt 902, the gathering seat 904 is moved within the third bracket 901, thereby changing the distance between the two gathering plates 905. One end of the gathering plate 905 is in close contact with the scraper 7, and the other side is located below the second bracket 801. When the dispersing plate 804 disperses the slurry, the slurry will not splash everywhere under the action of the gathering plate 905. At the same time, the gathering plate 905, together with the scraper 7, makes the slurry coating on the foil more even.

[0030] In actual operation, the first bolt 6 makes a gap between the scraper 7 and the workbench 1, and further controls the rotation of the second motor 802. Benefiting from the turntable 805 installed on the output end of the second motor 802, the turntable 805 is rotatably connected to the sliding plate 803 through the bending rod 806. The sliding plate 803 will move back and forth in the second bracket 801, thereby causing several dispersing plates 804 to move back and forth. When in use, the foil is laid flat on the workbench 1, and the slurry is poured in front of the mounting base 4. The first motor 2 is controlled to move the mounting base 4. Under the action of the dispersing plates 804, the slurry will be dispersed on the foil. Under the action of the scraper 7, the slurry will be coated on the foil.

[0031] By controlling the second bolt 902, the gathering seat 904 moves within the third bracket 901, thereby changing the distance between the two gathering plates 905. One end of the gathering plate 905 is in close contact with the scraper 7, and the other side is located below the second bracket 801. When the dispersing plate 804 disperses the slurry, the slurry will not splash everywhere under the action of the gathering plate 905. At the same time, the gathering plate 905, together with the scraper 7, makes the slurry coating on the foil more even.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform coating structure for lithium-ion battery processing slurry, comprising a worktable (1) and a first motor (2), wherein guide rails (3) are fixedly installed on both sides of the worktable (1), and a mounting base (4) is slidably installed between the two guide rails (3) and fixedly installed on the output end of the first motor (2), a first bracket (5) is installed on the mounting base (4), and two first bolts (6) are threaded in parallel on the first bracket (5), and a scraper (7) is rotatably installed on one end of the two first bolts (6), characterized in that: The mounting base (4) is provided with a dispersing mechanism (8); The dispersing mechanism (8) comprises a second support (801), one end of the second support (801) is fixedly provided with a second motor (802), the middle part of the second support (801) is slidably provided with a sliding plate (803), the lower part of the sliding plate (803) is fixedly provided with a plurality of dispersing plates (804) in parallel, the output end of the second motor (802) is fixedly provided with a rotating disc (805), the rotating disc (805) and the sliding plate (803) are rotatably provided with a folding rod (806).

2. The uniform coating structure of the slurry for processing lithium electronic batteries according to claim 1, characterized in that: The plurality of dispersing plates (804) are fixedly provided on the lower side of the sliding plate (803) in parallel and obliquely, and the oblique directions of the dispersing plates (804) on the two sides of the sliding plate (803) are opposite.

3. The uniform coating structure of the slurry for processing lithium electronic batteries according to claim 1, characterized in that: The rotating disc (805) is provided with a small hole on one side, and one end of the folding rod (806) is rotatably embedded in the small hole.

4. The uniform coating structure of slurry for processing lithium electronic battery according to claim 1, wherein: The mounting base (4) is provided with a gathering mechanism (9), the gathering mechanism (9) comprises a third support (901), the two ends of the third support (901) are threadedly provided with second bolts (902), one end of the second bolt (902) is fixedly provided with a limiting seat (903), the limiting seat (903) is slidably provided with a gathering seat (904) outside the third support (901), and the lower side of the gathering seat (904) is fixedly provided with a gathering plate (905).

5. The uniform coating structure of the slurry for processing lithium electronic batteries according to claim 4, characterized in that: The gathering plate (905) is composed of two vertical plates and an inclined plate, one of the vertical plates is close to the surface of the scraper (7), and the other vertical plate is located below the second support (801).

6. The uniform coating structure of the slurry for processing lithium electronic batteries according to claim 5, characterized in that: The outer parts of the first support (5), the second support (801) and the third support (901) are all provided with rubber rings, and three grooves are provided in parallel on the two sides of the mounting base (4).

Citation Information

Patent Citations

  • Coating equipment for lithium battery processing

    CN219765864U