摘要
锂离子电池因其能量密度高、循环性能好、自放电低等优势在各个领域得到了广泛的应用。近年来,退役三元锂离子电池数量急剧增长,从保护环境和节约资源的角度来看,开展退役锂离子电池回收再生工艺研究是必要的。本文综述了退役三元锂离子电池回收再生技术的研究现状,指出对衰减程度不同的锂电池正极材料需采取灵活的梯级回收工艺路线,并详细介绍了退役锂电池正极材料的湿法冶金回收工艺和物理法修复再生技术,分析了它们的优缺点和存在的技术难点。最后,展望了退役锂离子电池回收利用的前景和发展方向。
Lithium-ion batteries have been widely used in various fields due to their high energy density,good cycle performance and low self-discharge.In recent years,the number of spent ternary lithium-ion batteries have increased dramatically.From the perspective of environmental protection and resource conservation,it is necessary to carry out green and efficient processes to recycle and regenerate spent lithium-ion batteries.This article reviews the research status of the recycling technology for spent ternary lithium-ion batteries,and point out recycling lithium-ion batteries should be in accordance of their characteristics and states.The hydrometallurgical processes including leaching and regeneration of cathode materials for spent lithium-ion batteries are introduced in detail,as well as the process of physical repair and regeneration of some spent cathode materials,and then their advantages and existing problems are illustrated.In the end,the prospect and development direction of the recycling of spent lithium-ion batteries are prospected.
作者
王皓逸
邹昱凌
孟奇
夏广辉
林艳
张英杰
WANG Haoyi;ZOU Yulin;MENG Qi;XIA Guanghui;LIN Yan;ZHANG Yingjie(Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology,Kunming University of Science and Technology,Kunming 650093,China;Key Laboratory of Advanced Battery Materials of Yunnan Province,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology,Kunming 650093,China)
出处
《人工晶体学报》
CAS
北大核心
2021年第6期1158-1169,共12页
Journal of Synthetic Crystals
基金
国家重点研发计划(2019YFC1907901)。
关键词
退役锂离子电池
三元正极材料
回收再生
湿法冶金
物理修复
spent lithium-ion battery
ternary cathode material
recycling and regeneration
hydrometallurgical process
physical repair
