废旧磷酸铁锂电池正极材料回收利用技术研究进展  

Research Progress on Recycling and Utilization of Cathode Materials for Spent Lithium Iron Phosphate Batteries

作　　者：权朝明[1,2] 王敏 彭正军[1,2] 逯启昌 QUAN Chaoming;WANG Min;PENG Zhengjun;LU Qichang

机构地区：[1]中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海西宁810008 [2]青海省盐湖资源化学重点实验室,青海西宁810008

出　　处：《绿色矿冶》2023年第1期65-74,共10页Sustainable Mining and Metallurgy

基　　金：青海省重点研发与转化计划项目(2021-GX-117、2022-GX-154)。

摘　　要：综合考虑能源危机、环境问题、锂资源对锂电池行业发展的约束性,废旧锂电池回收是一项十分必要且有意义的工作。本文综述了废旧磷酸铁锂电池正极材料的回收利用方法,包括化学沉淀法、选择性浸出法、机械化学法、电化学提锂法等有价元素提取技术,以及固相修复再生、水热修复再生、电化学修复再生等修复再生技术,并指出不同回收利用方法的优势与不足;针对现阶段废旧磷酸铁锂电池正极材料回收利用存在的问题提出展望,为后续开展废旧磷酸铁锂电池回收利用的相关研究及工业应用提供参考。Considering the energy crisis,environmental problems and the constraints of lithium resources on the development of lithium battery industry,the recycling of waste lithium batteries is a very necessary and meaningful work.In this paper,the recycling methods of waste lithium iron phosphate battery cathode materials were reviewed,including chemical precipitation method,selective leaching method,mechanochemical method,electrochemical lithium extraction method and other valuable element extraction technologies,as well as solid phase repair regeneration,hydrothermal repair regeneration,electrochemical repair regeneration and other repair regeneration technologies,and the advantages and disadvantages of different recycling methods were pointed out.In view of the problems existing in the recycling of spent lithium iron phosphate battery cathode materials at the present stage,the prospect was put forward,which provide a reference for the subsequent research and industrial application of spent lithium iron phosphate battery recycling.

关 键 词：废旧锂电池 正极材料 有价金属 修复再生 化学沉淀法 选择性浸出 固相修复再生 水热修复再生 

分 类 号：TF826.3[冶金工程—有色金属冶金] X705[环境科学与工程—环境工程]