Liquid feeding structure for reducing lithium battery copper foil seersucker

By improving the liquid-up structure of lithium battery copper foil production, the design of liquid distributor and liquid-up pipe is adopted to ensure that each liquid-up port corresponds to a bolt hole and adjust the valve flow, solving the problem of difficult adjustment of the copper foil surface density, and achieving improvement in copper foil production efficiency and reduction of bubble yarn phenomenon.

CN223087952UActive Publication Date: 2025-07-11JIUJIANG TELFORD ELECTRONICS MATERIAL CO LTD
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Patent Information

Application Number
CN202422133475.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-07-11
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

During the production process of existing lithium battery copper foil, there are fewer pipes on the electrolyte liquid structure and do not correspond to bolts, which makes it difficult to adjust the density of the copper foil surface, which easily produces bubble yarn phenomenon, affecting the performance of copper foil.

Method used

The liquid distributor design is adopted. There is a liquid inlet on the front side of the liquid distributor and 27 liquid outlets on the back side, connecting 27 liquid upper pipes and liquid upper chambers. There is a PVC pipe and a valve in the pipeline. The liquid upper chamber is connected through a titanium tube. A vertical partition is installed in the cavity and divided into a small cavity to ensure that each liquid upper port corresponds to a bolt hole. The flow rate is adjusted through the valve to adjust the electrolyte flow rate.

Benefits of technology

The uniform distribution of electrolyte is achieved, the density of copper foil surface is easy to adjust, the production efficiency is improved, the bubble yarn phenomenon is reduced, and the performance of copper foil is improved.

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    Figure CN223087952U_ABST
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Abstract

The utility model discloses a liquid feeding structure for reducing lithium battery copper foil seersucker, which comprises a liquid separator, a liquid inlet is arranged in the middle of the front side of the liquid separator, 27 liquid outlets are arranged on the rear side of the liquid separator, the upper side of the liquid separator is connected with a liquid feeding pipeline through the liquid outlets, the upper part of the liquid feeding pipeline is connected with a liquid feeding cavity, and the liquid feeding cavity is connected with a liquid outlet of the liquid separator. According to the technical scheme, electrolyte enters from the liquid inlet in the liquid separator and enters the electrolytic cell through the 27 liquid feeding pipelines and the vertical partition plate, the electrolyte is evenly distributed in the process, the 27 liquid feeding openings of the liquid feeding cavity correspond to the bolt holes of the anode cell and the position between the two bolt holes respectively, and therefore the electrolyte can be evenly distributed. And the flow of the electrolyte is adjusted by adjusting the opening degrees of different valves in the liquid feeding pipeline, so that the surface density of the copper foil is easy to adjust, and the production efficiency of the copper foil is improved.
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Description

Technical Field

[0001] The utility model relates to a liquid feeding structure for reducing the crinkled gauze of lithium battery copper foil. Specifically, it relates to a liquid feeding structure for reducing the crinkled gauze of lithium battery copper foil. Background Art

[0002] Lithium battery copper foil, also known as lithium-ion battery copper foil, is a key material for the negative electrode current collector of lithium-ion batteries. It is produced by electrolysis and undergoes surface treatment, having good electrical conductivity and flexibility, and is an essential part of lithium-ion batteries.

[0003] The application range of lithium battery copper foil is very wide, and it can be used in lithium-ion batteries for new energy vehicles, various electronic products, energy storage equipment, etc. The mainstream production method is to electrolyze copper foil through copper sulfate electrolyte in the anode plate and the cathode roller.

[0004] Currently, in the mainstream production method during electrolytic copper foil production, the electrolyte enters the tank through the liquid feeding structure. However, the liquid feeding structure has fewer pipelines and no corresponding positions with bolts, which leads to difficult adjustment of the copper foil surface density and is prone to the phenomenon of crinkled gauze on the copper foil surface, affecting the use performance of the copper foil.

[0005] Therefore, it is urgent to improve the pipeline of the liquid feeding structure to achieve the purpose of adjusting the copper foil surface density by adjusting the electrolyte flow rate of the valve pipeline. Summary of the Utility Model

[0006] In view of the above technical problems in the related art, the utility model provides a liquid feeding structure for reducing the crinkled gauze of lithium battery copper foil, which can solve the above problems.

[0007] To achieve the above technical purpose, the technical solution of the utility model is realized as follows:

[0008] A liquid feeding structure for reducing the crinkled gauze of lithium battery copper foil, characterized in that: it includes a liquid distributor. A liquid inlet is provided in the middle of the front side of the liquid distributor, 27 liquid outlets are provided on the rear side of the liquid distributor, and the upper side of the liquid distributor is connected with a liquid feeding pipeline through the liquid outlets, and the upper part of the liquid feeding pipeline is connected with a liquid feeding cavity.

[0009] Further, the liquid feeding pipeline includes 27 PVC pipes, a valve is installed at the top of each PVC pipe, and each PVC pipe is connected with a titanium pipe through the valve.

[0010] Further, the titanium pipe is connected with the liquid feeding cavity.

[0011] Further, the liquid feeding cavity includes a liquid inlet and a vertical partition board, and the vertical partition board divides the liquid feeding cavity into 27 small cavities.

[0012] Further, the small cavities correspond to the liquid inlet ports one by one, and the upper liquid pipelines are aligned with the bolt holes one by one.

[0013] Advantages of the present utility model: In the technical solution of this application, the electrolyte enters from the liquid inlet on the liquid distributor, passes through 27 upper liquid pipelines and the vertical partition plate and enters the electrolytic cell. During this process, the electrolyte is evenly distributed. Moreover, the 27 liquid inlet ports of the upper liquid cavity respectively correspond to the bolt holes of the anode tank and the positions between two bolt holes. By adjusting the opening degrees of different valves in the upper liquid pipelines to adjust the electrolyte flow rate, it becomes easier to adjust the surface density of the copper foil, thereby improving the production efficiency of the copper foil. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] The following further elaborates on the present utility model based on the drawings.

[0016] Figure 1 is the overall structure schematic diagram of a liquid supply structure for reducing the crepe of lithium-ion battery copper foil according to an embodiment of the present utility model;

[0017] Figure 2 is the schematic diagram of the liquid distributor structure of a liquid supply structure for reducing the crepe of lithium-ion battery copper foil according to an embodiment of the present utility model;

[0018] Figure 3 is the schematic diagram of the upper liquid pipeline structure of a liquid supply structure for reducing the crepe of lithium-ion battery copper foil according to an embodiment of the present utility model;

[0019] Figure 4 is the schematic diagram of the upper liquid cavity structure of a liquid supply structure for reducing the crepe of lithium-ion battery copper foil according to an embodiment of the present utility model;

[0020] Figure 5 is the schematic diagram of the installation corresponding position of the upper liquid pipeline and the bolt hole of a liquid supply structure for reducing the crepe of lithium-ion battery copper foil according to an embodiment of the present utility model;

[0021] In the figure:

[0022] 1. Liquid distributor; 11. Liquid inlet; 12. Liquid outlet; 2. Upper liquid pipeline; 21. PVC pipe; 22. Valve; 23. Titanium pipe; 3. Upper liquid cavity. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model shall fall within the protection scope of the present utility model.

[0024] As Figures 1-5 shown, according to the present utility model, a liquid application structure for reducing the crepe of lithium-ion copper foil is disclosed, including a liquid distributor 1. A liquid inlet 11 is provided in the middle of the front side of the liquid distributor 1, and 27 liquid outlets 12 are provided on the rear side of the liquid distributor 1. The upper side of the liquid distributor 1 is connected to a liquid application pipeline 2 through the liquid outlets 12, and the upper part of the liquid application pipeline 2 is connected to a liquid application cavity 3.

[0025] In an embodiment of the present utility model, the liquid application pipeline 2 includes 27 PVC pipes 21. A valve 22 is installed at the top of each PVC pipe 21. Each PVC pipe 21 is connected to a titanium pipe 23 through the valve 22. The titanium pipe 23 is connected to the liquid application cavity 3. The liquid application cavity 3 includes a liquid inlet and a vertical partition. The vertical partition divides the liquid application cavity 3 into 27 small cavities, and the small cavities correspond to the liquid inlets one by one. The liquid application pipeline 2 is aligned with the bolt holes one by one.

[0026] In an embodiment of the present utility model, the mechanism of the present application includes a liquid distributor. The liquid distributor is provided with one liquid inlet and 27 liquid outlets. There are 27 liquid application pipelines above the liquid distributor. The liquid application pipeline is composed of a PVC pipe, a valve, and a titanium pipe. The titanium pipe is connected to the liquid application cavity. There are 26 vertical partitions, 27 small cavities and 27 corresponding liquid inlets in the liquid application cavity.

[0027] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A liquid application structure for reducing the crepe of lithium copper foil, characterized in that: It includes a liquid distributor (1). A liquid inlet (11) is provided in the middle of the front side of the liquid distributor (1). 27 liquid outlets (12) are provided on the rear side of the liquid distributor (1). An upper liquid pipeline (2) is connected to the liquid distributor (1) through the liquid outlets (12) on the upper side. The upper part of the upper liquid pipeline (2) is connected to an upper liquid cavity (3).

2. The upper liquid structure for reducing the crepe of lithium copper foil according to claim 1, characterized in that: The upper liquid pipeline (2) includes 27 PVC pipes (21). A valve (22) is installed at the top of each PVC pipe (21). Each PVC pipe (21) is connected to a titanium pipe (23) through the valve (22).

3. The upper liquid structure for reducing the crepe of lithium copper foil according to claim 2, characterized in that: The titanium pipe (23) is connected to the upper liquid cavity (3).

4. A liquid application structure for reducing the crepe of lithium copper foil according to claim 1, characterized in that: The upper liquid cavity (3) includes an upper liquid inlet and a vertical partition. The vertical partition divides the upper liquid cavity into 27 small cavities.

5. The liquid application structure for reducing the crepe of lithium copper foil according to claim 4, characterized in that: The small cavities correspond to the upper liquid inlets one by one. The upper liquid pipelines (2) are aligned with the bolt holes one by one.