退役锂离子电池失效机制研究进展-中国材料进展

文章信息/Info

作者:: 邓聪; 林艳; 1. 昆明理工大学冶金与能源工程学院，云南昆明 650093 2. 昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室，云南昆明 650093

Author(s):: DENG Cong; LIN Yan; 1. Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China 2. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China

Keywords:: spent lithium-ion battery; failure mechanism; safety failure; performance failure; recycling strategy

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。

Abstract:: 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 materials-failure 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.