曾静,吴可君,何潮洪

• 1:浙江省化工高效制造技术重点实验室浙江大学化学工程与生物工程学院
• 2:浙江大学衢州研究院

摘要(Abstract)：

废弃钴酸锂电池中存在的钴、锂等金属具有较高的回收价值。针对工业上电池废料中集流体铜箔在酸液浸出剂中会部分溶解的问题，以聚乙二醇-柠檬酸低共熔溶剂为浸出剂，考察了选择性浸出钴酸锂和铜混合粉末的效果，研究了浸出时间、浸出温度、固液(固体材料与浸出剂)质量比、含水的三元低共熔溶剂中水含量等条件对浸出效果的影响。结果表明，在优化的浸出条件下，浸出温度为100℃、浸出时间为5 h、固液质量比为1:100，锂、钴、铜的浸出率分别为96%、71%、2%，说明该浸出剂对钴、锂具有较好的选择性，为含铜杂质的钴酸锂电池正极粉末的回收处理提供了技术参考。

关键词(KeyWords)： 废弃锂离子电池;低共熔溶剂;选择性浸出;湿法冶金

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51874256)

作者(Author): 曾静,吴可君,何潮洪

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