Anti-precipitation tray for coating in lithium battery industry

By designing an anti-settling tray in coating equipment for the lithium battery industry, and using stirring and guiding components to prevent slurry sedimentation, the problem of slurry sedimentation and clumping is solved, achieving a uniform coating effect.

CN224072490UActive Publication Date: 2026-04-03ZHEJIANG DINGHAO NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

During the coating process in the lithium battery industry, the slurry settles and clumps at the bottom of the tray, leading to abnormal coating surfaces and affecting product performance.

Method used

Design an anti-settling tray comprising a stirring component and a flow guiding component, which stirs the slurry through the feed pipe and keeps the liquid level horizontal to prevent sedimentation.

Benefits of technology

It achieves uniform coating of the slurry, prevents sedimentation and clumping, and improves the coating effect.

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Abstract

The utility model relates to an anti-precipitation tray for coating in the lithium battery industry, which comprises a box body, feeding pipelines arranged on two sides of the box body, stirring components arranged in the feeding pipelines, a backflow pipeline and an overflow pipeline arranged in the middle of the box body, and a flow guide component arranged in the box body. The stirring assembly is used for stirring slurry while the slurry enters the box body through the feeding pipeline, and the flow guide assembly is used for keeping the liquid level of the slurry in a horizontal state while the slurry circularly flows through the backflow pipeline and the overflow pipeline, so that the liquid level is prevented from sinking in the middle when the slurry circularly flows back; and the condition that the coating roller is not uniformly dipped in the slurry is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and more specifically to an anti-settling tray for coating in the lithium battery industry. Background Technology

[0002] Coating machines are widely used in the battery manufacturing process of the lithium battery industry. The coating roller presses down and adheres to the surface of the gravure roller. When the gravure roller passes through the material tray, it coats the product with the slurry in the tray. However, when the coating equipment circulates the slurry, since the slurry is fed from bottom to top, the return is achieved by overflowing the liquid level. Over a long period of production, the bottom of the tray will gradually settle and clump, resulting in abnormal appearance of the coated surface and potentially affecting the product performance. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an anti-settling tray for coating in the lithium battery industry. The slurry is stirred by a stirring component as it enters the tank from the feed pipes on both sides. The flow guiding component ensures that the slurry surface remains horizontal during circulation, preventing the slurry surface from sinking in the middle during circulation and causing uneven slurry pick-up by the coating roller.

[0004] The technical solution of this utility model is as follows:

[0005] A coating anti-settling tray for the lithium battery industry includes a box body, feeding pipes on both sides of the box body, a stirring component inside the feeding pipes, a return pipe and an overflow pipe in the middle of the box body, and a flow guiding component inside the box body. The stirring component is used to stir the slurry as it enters the box body through the feeding pipes, and the flow guiding component is used to keep the slurry surface horizontal while the slurry circulates through the return pipes and overflow pipes.

[0006] As a preferred embodiment, the stirring assembly includes feed holes on both sides of the housing, a fixed plate fixedly mounted on the feed holes, a stirring rod rotatably mounted on the fixed plate, and stirring blades fixedly mounted on the stirring rod, wherein the feed pipe is fixedly connected to the feed holes.

[0007] As a preferred embodiment, the flow guiding assembly includes a return hole in the middle of the housing, an overflow hole in the housing, a first baffle fixedly disposed on both sides of the housing, a second baffle fixedly disposed in the middle of the housing, inclined plates fixedly disposed on both sides of the second baffle, and a leakage hole in the second baffle. The return pipe is fixedly connected to the return hole, and the overflow pipe is fixedly connected to the overflow hole.

[0008] As a preferred embodiment, the bottom of the box is set in a conical shape.

[0009] As a preferred embodiment, the overflow pipe is located in the middle section between the narrow side of the housing and the return hole and is connected to the return pipe.

[0010] As a preferred embodiment, the enclosure is made of stainless steel.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model is equipped with a stirring assembly. When the slurry enters the tank through the feed pipes on both sides, it drives the stirring rod to rotate. The stirring blades rotate the slurry, making the slurry more uniform.

[0013] This invention is equipped with a flow guiding component. When the slurry is circulating, it flows from the gap between the first baffle and the inclined plate to the bottom of the tank, keeping the slurry surface horizontal. This makes the coating roller pick up the slurry more evenly. The slurry on the second baffle flows to the bottom through the drain hole, preventing this part of the slurry from settling. The slurry flows out from the return pipe and the overflow pipe, realizing the circulation of the slurry and preventing the slurry from settling and drying.

[0014] In summary, this invention has the advantages of uniform coating and prevention of sedimentation, making it suitable for the field of lithium battery technology. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] Figure 1 A schematic diagram of the structure of an anti-settling tray for coating in the lithium battery industry;

[0017] Figure 2 This is a schematic diagram of the return flow pipe and the overflow pipe.

[0018] Figure 3 This is a schematic diagram of the reflux orifice structure;

[0019] Figure 4 This is a schematic diagram showing the state of the slurry driving the stirring blades to rotate.

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 A schematic diagram showing the state of the slurry during circulation;

[0022] Reference numerals: 1. Box body; 2. Feed pipe; 3. Stirring assembly; 31. Feed hole; 32. Fixing plate; 33. Stirring rod; 34. Stirring blade; 4. Return pipe; 5. Overflow pipe; 6. Flow guiding assembly; 61. Return hole; 62. Overflow hole; 63. First baffle; 64. Second baffle; 65. Inclined plate; 66. Leakage hole. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Example 1

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] like Figures 1 to 6 As shown, a coating anti-settling tray for the lithium battery industry includes a box body 1, feeding pipes 2 on both sides of the box body 1, a stirring component 3 inside the feeding pipes 2, a return pipe 4 and an overflow pipe 5 in the middle of the box body 1, and a flow guiding component 6 inside the box body 1. The stirring component 3 is used to stir the slurry as it enters the box body 1 through the feeding pipes 2, and the flow guiding component 6 is used to keep the slurry surface horizontal while the slurry circulates through the return pipes 4 and the overflow pipes 5.

[0027] Among them, such as Figure 4 and Figure 5 As shown, the mixing assembly 3 includes feed holes 31 on both sides of the housing 1, a fixed plate 32 fixedly mounted on the feed holes 31, a stirring rod 33 rotatably mounted on the fixed plate 32, and a stirring blade 34 fixedly mounted on the stirring rod 33. The feed pipe 2 is fixedly connected to the feed holes 31. A pump is installed on the feed pipe 2 to drive the slurry into the housing 1. When in use, when the slurry enters the housing 1 through the feed pipes 2 on both sides, the slurry will drive the stirring blade 34 to rotate. The stirring blade 34 stirs the slurry to make the slurry more uniform.

[0028] In addition, such as Figure 6As shown, the flow guiding assembly 6 includes a return hole 61 opened in the middle of the housing 1, an overflow hole 62 opened on the housing 1, a first baffle 63 fixedly installed on both sides of the housing 1, a second baffle 64 fixedly installed in the middle of the housing 1, inclined plates 65 fixedly installed on both sides of the second baffle 64, and a leakage hole 66 opened on the second baffle 64. The return pipe 4 is fixedly connected to the return hole 61, and the overflow pipe 5 is fixedly connected to the overflow hole 62. A valve is installed on the return pipe 4. After the valve is opened, the slurry is returned through the return pipe 4. In use, the slurry enters the housing 1 from the feed pipe 2 and after the set amount is injected, the coating roller rotates. During the process, the slurry is dipped and coated. When the slurry needs to circulate, the valve is opened, and the slurry flows into the bottom of the tank 1 through the gap between the first baffle 63 and the inclined plate 65. The slurry on the second baffle 64 flows into the bottom of the tank 1 through the drain hole 66, which can prevent this part of the slurry from settling. During this process, the liquid level of the slurry can always be kept horizontal, ensuring that the coating roller can always fully dip the slurry, so that the coating effect is more uniform. The slurry is returned through the return pipe 4 and the overflow pipe 5. The feed pipe 2 re-injects the returned slurry into the tank 1 for circulation, ensuring that the slurry always remains in a flowing state and preventing the slurry from settling and clumping.

[0029] It is worth mentioning that, such as Figure 4 As shown, the bottom of the tank is designed in a cone shape to allow the slurry to flow more evenly during circulation.

[0030] Furthermore, such as Figure 3 As shown, the overflow pipe 5 is located in the middle section between the narrow side of the box 1 and the return hole 61 and is connected to the return pipe 4 to prevent loss caused by overflow from the material tray.

[0031] It should be further explained that, such as Figure 1 As shown, the housing 1 is made of stainless steel. The wear-resistant properties of stainless steel prevent the generation of particulate matter, while its good corrosion resistance extends its service life.

[0032] Work process

[0033] When the slurry enters the tank 1 through the feed pipes 2 on both sides, the slurry drives the stirring blades 34 to rotate, which stirs the slurry to make it more uniform. The coating roller picks up the slurry and coats the slurry during rotation. When the slurry needs to circulate, the valve opens, and the slurry flows into the bottom of the tank 1 through the gap between the first baffle 63 and the inclined plate 65. The slurry on the second baffle 64 flows into the bottom of the tank 1 through the drain hole 66, which can prevent this part of the slurry from settling. During this process, the liquid level of the slurry can always be kept horizontal, ensuring that the coating roller can always pick up the slurry fully, making the coating effect more uniform. The slurry is returned through the return pipe 4 and the overflow pipe 5. The feed pipe 2 injects the returned slurry back into the tank 1 for circulation, ensuring that the slurry always remains in a flowing state and preventing the slurry from settling and clumping.

[0034] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0035] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0036] The above description, in conjunction with the accompanying drawings, is merely a preferred embodiment of the present utility model. However, the present utility model is not limited to the above-described embodiments. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present utility model. These modifications and improvements should also be considered within the scope of protection of the present utility model and will not affect the effectiveness and practicality of the implementation of the present utility model.

Claims

1. A coating tray for lithium battery industry, comprising a housing (1), characterized in that: The box (1) is provided with feed pipes (2) on both sides, and a stirring component (3) is provided inside the feed pipes (2). The box (1) is provided with a return pipe (4) and an overflow pipe (5) in the middle. The box (1) is provided with a flow guiding component (6). The stirring component (3) is used to stir the slurry while it enters the box (1) through the feed pipes (2). The flow guiding component (6) is used to keep the slurry surface horizontal while the slurry circulates through the return pipes (4) and the overflow pipes (5).

2. The anti-settling tray for coating in the lithium battery industry according to claim 1, characterized in that: The stirring assembly (3) includes a feed hole (31) on both sides of the box body (1), a fixing plate (32) fixedly installed on the feed hole (31), a stirring rod (33) rotatably installed on the fixing plate (32), and a stirring blade (34) fixedly installed on the stirring rod (33). The feed pipe (2) is fixedly connected to the feed hole (31).

3. The anti-settling tray for coating in the lithium battery industry according to claim 1, characterized in that: The flow guiding component (6) includes a return hole (61) opened in the middle of the box (1), an overflow hole (62) opened on the box (1), a first baffle (63) fixedly installed on both sides of the box (1), a second baffle (64) fixedly installed in the middle of the box (1), inclined plates (65) fixedly installed on both sides of the second baffle (64), and a leakage hole (66) opened on the second baffle (64). The return pipe (4) is fixedly connected to the return hole (61), and the overflow pipe (5) is fixedly connected to the overflow hole (62).

4. The anti-settling tray for coating in the lithium battery industry according to claim 1, characterized in that: The bottom of the box (1) is set in a cone shape.

5. The anti-settling tray for coating in the lithium battery industry according to claim 3, characterized in that: The overflow pipe (5) is located in the middle section between the narrow side of the box body (1) and the return hole (61) and is connected to the return pipe (4).

6. The anti-settling tray for coating in the lithium battery industry according to claim 1, characterized in that: The enclosure (1) is made of stainless steel.