摘要
揭示锂离子电池失效机制,有助于分析对应的退役锂电材料特性,从而为“因材施策”优选最经济有效的退役锂离子电池回收路径提供理论支撑,是构建多策略梯级回收技术体系的重要依据。归纳总结现行研究发现的锂离子电池失效机制,分类探讨安全失效和性能失效的主要因素,结合锂电材料失效机制分析失效锂电材料的结构及成分变化,并基于材料失效特性讨论相应的退役锂电材料回收方法。最后,针对构建“失效机制-回收策略”互馈的退役锂离子电池多策略协同回收技术体系提出工作设想。
Revealing the failure mechanisms of lithium-ion batteries is crucial for analyzing the characteristics of spent lithium-ion battery materials,which could provide theoretical support for selecting the most cost-effective and efficient recycling path based on material-specific strategies,forming an important foundation for constructing a multi-strategy cascade recycling technology system.This paper reviews the current research findings on the failure mechanisms of lithium-ion batteries,categorizes and explores the key factors contributing to safety and performance failures,investigates the structural and compositional changes of spent lithium-ion materials in relation to their failure mechanisms,and analyzes corresponding recycling strategies based on spent lithium-ion battery materialsfailure characteristics.Based on the failure characteristics of materials,discusses the corresponding recycling methods for spent lithium-ion batteries.Finally,proposes a working hypothesis for the construction of a multi-strategy collaborative recycling technology system for spent lithium-ion batteries that feeds back between failure mechanisms and recycling strategies.
作者
邓聪
林艳
DENG Cong;LIN Yan(Faculty of Metallurgy and Energy Engineering,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
《中国材料进展》
CAS
CSCD
北大核心
2024年第6期457-466,共10页
Materials China
基金
国家自然科学基金地区基金资助项目(52164049)
国家重点研发计划项目(2019YFC1907901)。
关键词
退役锂离子电池
失效机制
安全失效
性能失效
回收策略
spent lithium-ion battery
failure mechanism
safety failure
performance failure
recycling strategy
