湿法回收退役三元锂离子电池有价金属的研究进展  

Research progress on the recovery of valuable metals in retired LiNi_xCo_yMn_zO_2 batteries by wet process

作　　者：黎华玲 陈永珍[1,2,3] 宋文吉 冯自平[1,2,3] LI Hualing;CHEN Yongzhen;SONG Wenji;FENG Ziping(Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China;Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640,Guangdong, China)

机构地区：[1]中国科学院广州能源研究所,广东广州510640 [2]中国科学院可再生能源重点实验室,广东广州510640 [3]广东省新能源和可再生能源研究开发与应用重点实验室,广东广州510640

出　　处：《化工进展》2019年第2期921-932,共12页Chemical Industry and Engineering Progress

基　　金：广东省科技计划(2015B050501008);广东省重点实验室项目(y807ji1001)

摘　　要：近年来,随着三元体系锂离子电池市场份额的快速增加,退役三元锂离子电池将在未来出现爆发式增长,因此,回收三元锂离子电池电极材料中高价值的钴、镍、锂等有价金属成为电池行业的又一研究热点。本文详述了湿法回收三元电池电极材料有价金属的工艺流程和主要方法,重点介绍了有价金属的浸取方法、金属的分离提取、再合成利用和浸取动力学机理的研究进展,比较了工艺流程中不同处理方法的优缺点。并对回收退役三元电池材料的有价金属作了经济性分析,结果表明,三元电池材料有价金属回收具有可观的经济效益。最后对湿法回收三元电池材料中的有价金属方法进行总结,并简述了未来湿法回收处理方法的重要技术,包括化学纯化、自动化拆解以及完善的分类回收技术等,为未来三元电池材料回收技术发展提供参考。With the recent rapid expand of LiNixCoyMnzO2 battery market, the retired lithium ion batteries will gain explosive growth in the future. Therefore, the recovery of valuable metals such as cobalt, nickel and lithium in the electrode materials of LiNixCoyMnzO2 batteries has become another hot spot in the battery industry. This paper reviews the technological process and main methods for the recovery of the valuable metals from LiNixCoyMnzO2 batteries by wet process, with the focus placed on the leaching methods of valuable metals, separation and extraction of valuable metals, reutilization and leaching kinetics. The advantages and disadvantages of different processing methods are compared. In addition, economic analysis shows that the recovery of valuable metals from retired LiNixCoyMnzO2 batteries has considerable economic value. Finally, the methods for the recovery of the valuable metals of LiNixCoyMnzO2 batteries by wet process are summarized, and the important technologies in the future are briefly described, including chemical purification, automatic disassembling and classified recovery, which provides reference for the future development of recovery of LiNixCoyMnzO2 batteries.

关 键 词：锂离子电池 三元材料 有价金属 浸取 回收 再生 

分 类 号：TM911[电气工程—电力电子与电力传动]