定向循环技术回收制锂的研究进展  

Research progress in the recovery of lithium by directional recycling technology

作　　者：李爱霞 余海军 谢英豪 LI Aixia;YU Haijun;XIE Yinghao(Guangdong Brunp Recycling Technology Co.,Ltd.,Foshan,Guangdong 528137,China)

机构地区：[1]广东邦普循环科技有限公司,广东佛山528137

出　　处：《电池》2024年第1期111-115,共5页Battery Bimonthly

基　　金：国家重点研发计划项目(2018YFC1901800);广东省电池循环利用企业重点实验室(2021年度)(2021B1212050002)。

摘　　要：从退役锂离子电池中回收锂是解决锂资源短缺的重要途径之一。从退役锂离子电池产业链出发,分别研究退役三元正极材料和磷酸铁锂(LiFePO_(4))锂离子电池中定向循环回收制锂的技术进展,分析不同技术优缺点,并展望该工艺的发展趋势和前景。三元正极材料锂离子电池前端提锂工艺有助于提高锂回收率,磷酸铁锂锂离子电池湿法回收有较高的锂回收率。同时,提出构建高效低成本浸出体系、优化低温焙烧体系,构建全链条一体化定向循环低碳回收体系的设想。Recycling lithium from the spent Li-ion batteries is one of the important ways to solve the shortage of lithium.Based on the industrial chain of spent Li-ion batteries,the technological progress of recovery of lithium from ternary cathode material and lithium iron phosphate(LiFePO_4) Li-ion battery is studied,the advantages and disadvantages of different technical schemes are analyzed,the technical development trend is predicted:The process of lithium extraction from the front end of ternary cathode material Li-ion battery is helpful to improve the recovery rate of lithium,the hydrometallurgical recovery process of LiFePO_(4) Li-ion battery has a higher recovery rate.Meanwhile,it is proposed to build an efficient and low-cost leaching system,optimize the low temperature roasting system and build a whole-chain integrated directional cycle low-carbon recovery system.

关 键 词：退役锂离子电池 定向循环技术(DRT) 回收 火法冶金 浸出 锂回收 

分 类 号：TM912.9[电气工程—电力电子与电力传动]