Additive and method for producing 6 micron high-hardness electrolytic copper foil by using additive

一种电解铜箔、添加剂的技术，应用在电解过程、电铸等方向，能够解决影响锂电池安全与寿命、铜箔硬度低、质重不均等问题，达到技术附加值提高、成本低、硬度提高的效果

Inactive Publication Date: 2018-02-23
LINGBAO WASON COPPER FOIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of 6µm electrolytic copper foil, due to the low hardness of the copper foil, uneven weight and excessive tension, water ripples are prone to appear. life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An additive, the additive includes a hardness agent and a brightener, the hardness agent is an aqueous solution A containing 1,3-tetrahydrothiazol-2-one, DPS and MESS, wherein, in the aqueous solution A, 1,3-tetrahydro The concentration of thiazol-2-one is 1ppm, the concentration of DPS is 15ppm, and the concentration of MESS is 2ppm; the brightener contains SPS and Cl - Aqueous solution B, wherein, in aqueous solution B, SPS concentration is 10ppm, Cl - The concentration is 20ppm.

[0016] A method for producing 6 µm high-hardness electrolytic copper foil using the above-mentioned additives, which specifically includes the following steps:

[0017] (1) Solution preparation: Heat and dissolve high-purity copper wire with a purity of 99.95% in a copper-dissolving tank (add sulfuric acid and hot water to the copper-dissolving tank and blow in air) to generate copper sulfate electrolyte;

[0018] (2) Preparation of electrolytic copper foil: After the copper sulfate elect...

Embodiment 2

[0022] An additive, the additive includes a hardness agent and a brightener, the hardness agent is an aqueous solution A containing 1,3-tetrahydrothiazol-2-one, DPS and MESS, wherein, in the aqueous solution A, 1,3-tetrahydro The concentration of thiazol-2-one is 3ppm, the concentration of DPS is 20ppm, and the concentration of MESS is 4ppm; the brightener contains SPS and Cl - Aqueous solution B, wherein, in aqueous solution B, SPS concentration is 15ppm, Cl - The concentration is 20ppm.

[0023] A method for producing 6 µm high-hardness electrolytic copper foil using the above-mentioned additives, which specifically includes the following steps:

[0024] (1) Solution preparation: Heat and dissolve high-purity copper wire with a purity of 99.95% in a copper-dissolving tank (add sulfuric acid and hot water to the copper-dissolving tank and blow in air) to generate copper sulfate electrolyte;

[0025] (2) Preparation of electrolytic copper foil: After the copper sulfate elect...

Embodiment 3

[0029] An additive, the additive includes a hardness agent and a brightener, the hardness agent is an aqueous solution A containing 1,3-tetrahydrothiazol-2-one, DPS and MESS, wherein, in the aqueous solution A, 1,3-tetrahydro The concentration of thiazol-2-one is 8ppm, the concentration of DPS is 40ppm, and the concentration of MESS is 10ppm; the brightener contains SPS and Cl - Aqueous solution B, wherein, in aqueous solution B, SPS concentration is 30ppm, Cl - The concentration is 10ppm.

[0030] A method for producing 6 µm high-hardness electrolytic copper foil using the above-mentioned additives, which specifically includes the following steps:

[0031] (1) Solution preparation: Heat and dissolve high-purity copper wire with a purity of 99.95% in a copper-dissolving tank (add sulfuric acid and hot water to the copper-dissolving tank and blow in air) to generate copper sulfate electrolyte;

[0032] (2) Preparation of electrolytic copper foil: After the copper sulfate elec...

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Abstract

The invention relates to an additive. The additive comprises a hardness agent and a brightening agent; the hardness agent is an aqueous solution A containing 1,3-thiazolidin-2-one, DPS and MESS, wherein in the aqueous solution A, the concentration of 1,3-thiazolidin-2-one is 0.5-10 ppm, the concentration of DPS is 10-50 ppm, and the concentration of MESS is 1-20 ppm; and the brightening agent is an aqueous solution B containing SPS and Cl-, wherein in the aqueous solution B, the concentration of SPS is 10-50 ppm, and the concentration of Cl- is 10-30 ppm. According to 6 micron electrolytic copper foil made through the method, a HVS-1000 desktop hardness meter is adopted for detecting a hardness value, hardness is remarkably improved (can reach 120-150 HV), water ripples are greatly relieved, and the added technical value is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of electrolytic copper foil, and in particular relates to an additive and a method for producing 6 µm high-hardness electrolytic copper foil using the additive. Background technique [0002] Copper foil is an indispensable and important basic material for the electronics industry. With the development of miniaturization and cutting-edge electronic products, especially the further upgrading of the new energy industry, 6µm electrolytic copper foil has a broader market prospect. The quality requirements are getting higher and higher. In the production process of 6µm electrolytic copper foil, due to the low hardness of the copper foil, uneven weight and excessive tension, water ripples are prone to appear. life. Therefore, it is urgent to develop and research methods for producing 6µm high-hardness electrolytic copper foil. Contents of the invention [0003] The purpose of the present invention is to overco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04
CPCC25D1/04
Inventor 王庆福樊斌锋彭肖林
Owner LINGBAO WASON COPPER FOIL
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