Direct Regeneration of Spent Lithium-Ion Battery Cathodes:From Theoretical Study to Production Practice  

作　　者：Meiting Huang Mei Wang Liming Yang Zhihao Wang Haoxuan Yu Kechun Chen Fei Han Liang Chen Chenxi Xu Lihua Wang Penghui Shao Xubiao Luo 

机构地区：[1]National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization,Nanchang Hangkong University,Nanchang 330063,People's Republic of China [2]Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials,School of Chemistry and Chemical Engineering,Hunan Institute of Science and Technology,Yueyang 414006,People's Republic of China [3]College of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,People's Republic of China [4]School of Life Science,Jinggangshan University,Ji'an 343009,People's Republic of China

出　　处：《Nano-Micro Letters》2024年第10期304-336,共33页纳微快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2023YFC3904800);the Key Project of Jiangxi Provincial Research and Development Program(No.20223BBG74006);the Key Project of Ganzhou City Research and Development Program(No.2023PGX17350);“Thousand Talents Program”of Jiangxi Province(No.001043232090);Science&Technology Talents Lifting Project of Hunan Province(No.2022TJ-N16);Natural Science Foundation of Hunan Province(Nos.2024JJ4022 and 2023JJ30277);China Postdoctoral Fellowship Program(No.GZC20233205);the Open-End Fund for National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization(ES202480184).

摘　　要：Direct regeneration method has been widely concerned by researchers in the field of battery recycling because of its advantages of in situ regeneration,short process and less pollutant emission.In this review,we firstly analyze the primary causes for the failure of three representative battery cathodes(lithium iron phosphate,layered lithium transition metal oxide and lithium cobalt oxide),targeting at illustrating their underlying regeneration mecha-nism and applicability.Efficient stripping of material from the collector to obtain pure cathode material has become a first challenge in recycling,for which we report several pretreatment methods currently available for subsequent regeneration processes.We review and discuss emphatically the research progress of five direct regeneration methods,including solid-state sintering,hydrothermal,eutectic molten salt,electrochemical and chemical lithiation methods.Finally,the application of direct regeneration technology in production practice is introduced,the problems exposed at the early stage of the industrialization of direct regeneration technol-ogy are revealed,and the prospect of future large-scale commercial production is proposed.It is hoped that this review will give readers a comprehensive and basic understanding of direct regeneration methods for used lithium-ion batteries and promote the industrial application of direct regeneration technology.

关 键 词：Spent LIBs Failure reasons Cathode recycling Direct regeneration Production practice 

分 类 号：X705[环境科学与工程—环境工程]