Lithium electric copper foil anti-oxidization liquid and anti-oxidization treatment technology

An anti-oxidation solution and anti-oxidation technology, which is applied in the direction of electrolytic organic material coating, etc., can solve the problems of wastewater discharge, copper foil production cost increase, unfavorable environmental protection and enterprise development, etc.

Inactive Publication Date: 2016-03-09
青海电子材料产业发展有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

With the current anti-oxidation treatment process, it is necessary to use a large amount of water in the washing process, which causes a sharp increase in the production cost of copper foil and produces a large amount of wastewater discharge, which is not conducive to environmental protection and enterprise development.

Method used

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  • Lithium electric copper foil anti-oxidization liquid and anti-oxidization treatment technology
  • Lithium electric copper foil anti-oxidization liquid and anti-oxidization treatment technology
  • Lithium electric copper foil anti-oxidization liquid and anti-oxidization treatment technology

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Embodiment Construction

[0023]

[0024] Table 1 Process parameters of lithium battery copper foil anti-oxidation solution

[0025] At the same time, the online anti-oxidation treatment process conditions generally include the contents shown in Table 2:

[0026]

[0027] Table 2 Process parameters of lithium battery copper foil anti-oxidation solution

[0028] like figure 1 As shown, the second part is that after the lithium battery copper foil 9 is peeled off from the raw foil machine 1, it enters the anti-oxidation electroplating tank 5 filled with anti-oxidation solution through the guide roller 3, and performs electroplating and anti-oxidation treatment according to the online anti-oxidation treatment process conditions. After that, it passes through squeeze roll 6, bellows 7, oven 8, and copper foil winding roll 10. Lithium battery copper foil anti-oxidation treatment is an online continuous completion.

[0029] During the production process, the pH value of the lithium battery copper ...

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Abstract

The invention discloses lithium electric copper foil anti-oxidization liquid and an anti-oxidization treatment technology. Chromic anhydride and benzotriazole serve as main components of the lithium electric copper foil anti-oxidization liquid. By means of the anti-oxidization treatment technology with the lithium electric copper foil anti-oxidization liquid, under the situation that the anti-oxidization performance of lithium electric copper foil is kept to meet the requirements that the lithium electric copper foil is placed in an oven with the temperature of 160 DEG C for 10 min, and the surface of the lithium electric copper foil is free of oxidizing discoloration, the zinc and nickel content in an anti-oxidation layer is lower than 0.001%, the washing link is omitted, the production water consumption and the waste water discharge are reduced to a great extent, and the environment protection and sustainable development of production enterprises are facilitated.

Description

technical field [0001] The invention relates to the technical field of anti-oxidation treatment of electrolytic copper foil, in particular to an anti-oxidation solution and an anti-oxidation treatment process for lithium battery copper foil. Background technique [0002] Electrolytic copper foil is an important material for the manufacture of copper clad laminates (CCL) and printed circuit boards (PCB). It is necessary to dissolve the copper to make copper sulfate electrolyte, and then in the special electrolysis equipment, the copper sulfate electrolyte is in direct current Under the action of electro-deposition, the original foil is made, and then a series of surface treatments such as roughening treatment, heat-resistant treatment and anti-oxidation treatment are carried out on the original foil according to the requirements. In the rapid development of today's electronic information industry, electrolytic copper foil is called the "neural network" of electronic product s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D9/02C25D7/06
CPCC25D9/02C25D7/0614
Inventor 谢长江尹卫华李勇贞邹迪华王武军汪坚
Owner 青海电子材料产业发展有限公司
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