锡钴合金电镀技术的发展  

Development and Prospect of Electrodeposited Technology of Tin-Cobalt Alloy

作　　者：张琪 张策 易娟 赵涛 毛祖国 张德忠 任星海 陶明 ZHANG Qi;ZHANG Ce;YI Juan;ZHAO Tao;MAO Zu-guo;ZHANG De-zhong;REN Xing-hai;TAO Ming(Wuhan Research Institute of Materials Protection,Wuhan 430030,China)

机构地区：[1]武汉材料保护研究所有限公司,湖北武汉430030

出　　处：《材料保护》2021年第7期128-132,139,共6页Materials Protection

摘　　要：六价铬镀层因其优异的装饰性和功能性被广泛应用,但其带来的环境及健康问题不容小觑。为了降低六价铬对环境的污染,开发出了锡钴合金电镀技术,并实现了装饰性铬镀层的替代。基于近些年国内外对此的研究进展,综述了锡钴合金电镀技术的研究历史和现状,详细介绍了不同时期、不同领域锡钴合金电镀工艺的典型方案;同时对锡钴合金镀液类型、特点及发展进行了系统总结,包括近年来研究较多的焦磷酸盐、葡萄糖酸盐、柠檬酸盐等体系,分析了其特点与不足,指出这些体系制得的合金镀层钴含量高,外观及性能与铬镀层相近,工艺绿色环保,有望替代铬镀层;最后讨论了锡钴合金电镀技术目前面临的主要问题,并对未来发展趋势进行了展望,提出了锂离子电池负极材料将会成为以后锡钴合金电镀的一个研究热点。Hexavalent chromium coatings are widely used for their excellent decorative and functional properties,but the related environmental and health problems should not be underestimated.In order to reduce the environmental pollution caused by hexavalent chromium,tin-cobalt alloy plating technology has been developed and used to replace the decorative chromium coatings.Based on the related domestic and foreign research progress in recent years,the research history and the current research status of tin-cobalt alloy plating technology were reviewed,and the typical schemes of tin-cobalt alloy plating process in different periods and fields were introduced in detail.Meanwhile,the types,characteristics and development of tin-cobalt alloy plating solutions were also summarized,including the characteristics and deficiencies of pyrophosphate,gluconate,citrate and other systems which were studied a lot in recent years.And it was pointed out that the alloy coatings obtained from these systems had high cobalt content,their appearances and performances were similar to chrome plating and the process was more environmental friendly,which were expected to replace chrome plating.Finally,the currently facing main problems of the tin-cobalt alloy plating technology were discussed,the future development trend was prospected and it was also proposed that the cathode material of lithium ion battery would become a research hotspot related to tin-cobalt alloy plating technology.

关 键 词：锡钴合金 电镀 焦磷酸盐 研究进展 展望 锡钴负极材料 

分 类 号：TQ153.2[化学工程—电化学工业]