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190801-酸性镀铜添加剂对生产锂离子电池用双面光电解铜箔的影响

   作者:王海振,胡旭日    单位:电镀与涂饰    日期:2019-05-16     浏览:239    评论:0    
提示:中文核心期刊,中国科技核心期刊!DOI: 10.19289/j.1004-227x.2019.08.001酸性镀铜添加剂对生产锂离子电池用双面光电解铜箔的影

中文核心期刊,中国科技核心期刊!   


DOI: 10.19289/j.1004-227x.2019.08.001

酸性镀铜添加剂对生产锂离子电池用双面光电解铜箔的影响

王海振*,胡旭日(山东 招远 265400)

摘要:研究了不同酸性镀铜添加剂组合对锂离子电池用双面光电解铜箔光泽和力学性能的影响。基础电解液组成和工艺条件为:Cu2+ (82 ± 2) g/L,硫酸(120 ± 5) g/L,Cl− (30 ± 10) mg/L,电流密度60 A/dm2,温度(50 ± 1) °C。结果表明,明胶与聚二硫二丙烷磺酸钠(SPS)的组合不能得到光亮的铜箔。胶原蛋白与SPS 组合时可得到光亮的铜箔,在此基础上加入羟乙基纤维素(HEC),能提高铜箔的延伸率和光泽,但会降低抗拉强度。

关键词:锂离子电池;电解铜箔;酸性镀铜;添加剂;光泽;抗拉强度;延伸率

中图分类号:TQ153.1 

文献标志码:A

文章编号:1004 – 227X (2019) 08 – 0335 – 03

Effects of additives for acid copper plating on electrolytic copper foils being bright on both sides for fabrication of lithium-ion batteries // WANG Hai-zhen*, HU Xu-ri

Abstract: The effects of different combinations of additives for acid copper plating on the glossiness and mechanical properties of the electrolytic copper foil being bright on both sides used in lithium-ion battery were studied in an electrolyte composed of Cu2+ (82 ± 2) g/L and Cl− (30 ± 10) mg/L at temperature (50 ± 1) °C and current density 60 A/dm2. The results showed that a bright copper foil was obtained when using the combination of collagen and SPS combination, but not for the combination of gelatin and sodium 3,3′-dithiodipropane sulfonate (SPS). The copper foil obtained with collagen and SPS as additives had an improved elongation and glossiness, but a reduced tensile strength after the addition of hydroxyethyl cellulose (HEC).

Keywords: lithium-ion battery; electrolytic copper foil; acid copper plating; additive; glossiness; tensile strength;elongation

First-author’s address: Zhaoyuan 265400, China

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