文献类型：期刊文献

英文题名：Unexpected self-driven enhanced leaching mechanism of cathodes and anodes from end-of-life lithium-ion battery

作者：He, Ting[1];Wang, Penglin[1];Zhou, Shiyu[1];Kong, Jiao[1];Gu, Shuai[1,2];Yu, Jianguo[1,2]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake Re, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Joint Int Lab Potassium & Lithium Strateg Resource, Shanghai 200237, Peoples R China

年份：2025

卷号：353

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20242516284617);WOS:【SCI-EXPANDED(收录号:WOS:001259082100001)】；

基金：This research is sponsored by the Shanghai Sailing Program (Grant number 21YF1409000) , Nature Science Foundation of Shanghai (Grant number 22ZR1415800) , and National Natural Science Foundation of China (Grant number 52304422) .

语种：英文

外文关键词：Self-driven; Mechanism; Lithium -ion batteries; Electrochemical; cathode and anode sheets

摘要：The fast growth of the energy storage and electric vehicle industries in recent years has produced an enormous amount of end-of-life (EoL) lithium-ion batteries (LIBs). To achieve faster leaching kinetics, traditional hydrometallurgical recovery of EoL LIBs cathodes requires complex pre-treatment processes to liberate cathode active powders from cathode sheets. Nevertheless, utilizing the cathode sheets rather than the cathode powders results in unexpected enhanced leaching of EoL LIBs during the initial stage. To reveal the mechanism for this unexpected phenomenon, a series of electrochemical experiments are designed. The self-driven enhanced leaching mechanism is proposed and verified with delicately designed electrochemical experiments and thermodynamic calculations. Based on this mechanism, an innovative galvanic cell recovery method is constructed to achieve effective leaching of valuable metals from both cathode and anode sheets simultaneously without chemical reducing agents and complex pre-treatment processes. This research provides novel ideas for the comprehensive recycling of EoL LIBs to improve economics and environmental sustainability.