Cathode roller side plate anti-crystallization device, crude foil machine and anti-crystallization method

A cathode roller, anti-crystallization technology, applied in the electrolysis process, electroforming and other directions, can solve the problems of process fluctuation, dilution of copper acid concentration in electrolyte, etc., and achieve the effect of avoiding crystallization

Active Publication Date: 2021-07-20
GUANGDONG FINE YUAN SCI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0015] But, as described in the background technology of CN207608639U, the reason is: on the one hand, the water under the spray can enter in the side liquid tank; ), always flushing with water will cause the concentration of copper acid in the electrolyte to be diluted, and the process will cause large fluctuations;
[0016] On the other hand, the solution of the side liquid flow will still return to the electrolyte circulation system, and the change of its concentration will also cause the pressure of the copper dissolving system and the pressure of wastewater treatment

Method used

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  • Cathode roller side plate anti-crystallization device, crude foil machine and anti-crystallization method
  • Cathode roller side plate anti-crystallization device, crude foil machine and anti-crystallization method
  • Cathode roller side plate anti-crystallization device, crude foil machine and anti-crystallization method

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Embodiment 1

[0054] From the document 1 mentioned in the background technology, it can be seen that:

[0055] Rinsing the cathode roll with pure water will cause the pure water of the electrolyte system to enter the system, which will affect the stability of the solution parameters (the method recorded in the background technology of Document 1);

[0056] In order to avoid the above-mentioned problems, a method of rinsing the sides of the cathode roll with an electrolytic solution has been proposed. The disadvantage of using systematic electrolyte to flush the side of the cathode roller to prevent crystallization is that it will form acid mist, which will easily float to the surface of the copper foil to form acid mist spots (small black spots), especially for the cathode roller of 1.5 meters, because of the height Not enough, the acid mist easily drifted to the foil surface.

[0057] To this end, it is necessary to break the technical bias of documents 1, 2, 3, and 4.

[0058] First, th...

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Abstract

The invention discloses a cathode roller side plate anti-crystallization device, a crude foil machine and an anti-crystallization method. The invention belongs to the technical field of new energy automobile power battery electrolytic copper foil. The device is technically characterized by comprising a water spraying pipe and a dropwise adding pump, wherein the water spraying pipe is connected with the dropwise adding pump; and the water spraying pipe is arranged right above a rotating central shaft of a cathode roller and is right opposite to the cathode roller. By the adoption of the cathode roller side plate anti-crystallization device, the crude foil machine and the anti-crystallization method, crystallization of a cathode roller side end plate can be prevented, and meanwhile adding of pure water can be reduced to the maximum extent.

Description

technical field [0001] The invention relates to the field of electrolytic copper foil for power batteries of new energy vehicles, and more specifically relates to a cathode roller side plate anti-crystallization device, a foil machine, and an anti-crystallization method. Background technique [0002] The problem of crystallization of cathode roll end plates is a well-known technical problem among practitioners in the copper foil industry. It can cause edge tearing of the copper foil. [0003] For this technical question, [0004] Document 1: CN207608639U proposes a cathode roller side spray device, the spray pipes arranged on both sides of the end of the cathode roller, the spray pipes are horizontally arranged and located above the corresponding liquid surface of the cathode roller spin-out part; There is a spray section, which is composed of a plurality of spray holes arranged uniformly along the length direction of the spray pipe. The inner end coincides with the cente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04C25D1/20
CPCC25D1/04C25D1/20
Inventor 曾尚南刘少华杨剑文杨雨平温欢元黄练彬
Owner GUANGDONG FINE YUAN SCI TECH CO LTD
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