Ammonia leaching mechanism and kinetics of LiCoO_(2) material from spent lithium-ion batteries

作     者：Dongmin Li Bao Zhang Xing Ou Jiafeng Zhang Kui Meng Guanjun Ji Pengfei Li Jianhui Xu Dongmin Li;Bao Zhang;Xing Ou;Jiafeng Zhang;Kui Meng;Guanjun Ji;Pengfei Li;Jianhui Xu

作者机构：School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Environment and Civil EngineeringDongguan University of TechnologyDongguan 523808China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第7期

页      面：2333-2337页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51822812,51778627) the Fundamental Research Funds for the Central Universities of Central South University(No.2020zzts474) 

主　　题：Spent LiCoO_(2) Recycling Ammonia leaching High-energy ball milling Lithium-ion batteries 

摘      要：In this paper,the ammonia leaching process and high-energy ball milling method were adapted to recover spent LiCoO_(2) *** ammonia reduction leaching mechanism of LiCoO_(2) material in the ammonia-sodium sulfite-ammonium chloride system was *** with untreated LiCoO_(2) material,the leaching equilibrium time of LiCoO_(2) after ball-milled for 5 h was reduced from 48 h to 4 h,and the leaching efficiency of lithium and cobalt was improved from 69.86%and 70.80%to 89.86%and98.22%,***,the apparent activation energy and leaching kinetic equation of the reaction was calculated by the shrinking core reaction model,indicating that the reaction was controlled by the chemical reaction.