退役锂离子电池电解液与负极材料回收利用现状与进展  

Current status and research progress of recovery and recycling of electrolyte and anode materials of spent lithium-ion batteries

作　　者：杨亚凯 张豪 宋东祺 万浩 郭慧 曹亦俊 YANG Yakai;ZHANG Hao;SONG Dongqi;WAN Hao;GUO Hui;CAO Yijun(School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China;Zhongyuan Critical Metals Laboratory,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学化工学院,河南郑州450001 [2]郑州大学中原关键金属实验室,河南郑州450001

出　　处：《中南大学学报（自然科学版）》2024年第11期4318-4331,共14页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(52104271);河南省自然科学基金资助项目(242300421222);冶金减排与资源综合利用教育部重点实验室(安徽工业大学)开放基金资助项目(JKF24-02)。

摘　　要：现有退役锂离子电池的回收利用研究中对正极材料的回收研究较多,本文将重点综述电解液和负极材料回收与利用现状。首先,对退役锂离子电池预处理技术进行综述,其次,对电解液的收集与其中锂盐的转化回收方法进行详细介绍,然后,对负极材料(主要为石墨)湿法、火法及其联合工艺等回收再生石墨的研究现状进行阐述,同时对负极材料再生为石墨烯、吸附剂和催化剂等其他功能材料的研究进展进行评述,最后,对负极材料的回收再生利用面临的挑战及机遇进行总结和展望,以期为退役锂离子电池负极材料的回收利用提供参考。The research on the recovery of cathode materials from spent lithium-ion batteries was extensively studied.The current status of electrolyte and anode material recovery and utilization were reviewed.The pretreatment of spent LIBs was firstly reviewed.Then,the collection of electrolyte and the conversion and recovery method of lithium salt were discussede.Moreover,the research status of regenerated graphite by hydrometallurgy,pyrometallurgy and the combined process was summarized.Besides,research on the regeneration of anode materials into other functional materials such as graphene,adsorbents and catalysts was also reviewed.Finally,the challenges and opportunities for the recycling of anode materials were summarized,aiming to provide guidance for the recycling of electrolyte and anode materials of spent LIBs.

关 键 词：退役锂离子电池 电解液 负极材料 石墨 回收与再生 

分 类 号：X705[环境科学与工程—环境工程]