锂电铜箔表面防氧化工艺研究  

Study on Antioxidation Technology of the Lithium Copper Foil Surface

作　　者：马秀玲 陈明彪 潘美君 他得保 袁世祺 李永贞 彭丽军 MA Xiuling;CHEN Mingbiao;PAN Meijun;TA Debao;YUAN Shiqi;LI Yongzhen;PENG Lijun(Qinghai Communications Technical College,Xining 810000,China;Qinghai Electronic Material Industry Development Co.,Ltd.,Xining 810000,China;GRIMAT Engineering Institute Co.,Ltd.,Beijing 101407,China)

机构地区：[1]青海交通职业技术学院,西宁810000 [2]青海电子材料产业发展有限公司,西宁810000 [3]有研工程技术研究院有限公司,北京101407

出　　处：《有色金属工程》2024年第8期31-38,共8页Nonferrous Metals Engineering

基　　金：国家重点研发计划项目(2016YFB0301300);青海交通职业技术学院2024年度研究课题(2024QHJZ-K01)。

摘　　要：锂电铜箔在生产、储存、运输和使用时,很容易使铜箔表面发生氧化变色,会直接影响锂电池的产品良率、可靠性、使用寿命、粘接性等,要求铜箔有良好的防氧化性能。采用SEM、EDAX等表征手段,研究了不同浸泡工艺和微量电镀工艺条件下铜箔表面形貌和氧含量的变化,得到浸泡工艺和微量电镀工艺对铜箔表面防氧化性能的影响。结果表明:在电流密度为5 A/dm^(2),电镀时间为10 s,铬酐浓度为0.5 g/L,葡萄糖浓度为1.5 g/L时,铜箔经高温烘烤后表面无变色,防氧化性能较优。Lithium-ion copper foil is prone to oxidation and discoloration on the surface during production,storage,transportation,and use,which directly affects the product yield,reliability,service life and adhesion of lithium batteries.This requires copper foil to have good anti oxidation performance.In this paper,the changes in surface morphology and oxygen content of the copper foil under different soaking and micro electroplating process conditions were studied using characterization methods such as SEM and EDAX.The impact of soaking and micro-plating processes on the surface of copper foil surface anti-oxidation performance.The results show that when the current density is 5 A/dm^(2),the plating time is 10 s,the chromic anhydride concentration is 0.5 g/L,and the glucose concentration is 1.5 g/L.After the copper foil is baked at high temperature,there is no discoloration on the surface,and the anti-oxidant performance is better.

关 键 词：锂电铜箔 浸泡 微量电镀 防氧化性能 

分 类 号：TQ153.1[化学工程—电化学工业]