Highly selective metal recovery from spent lithium-ion batteries through stoichiometric hydrogen ion replacement

作     者：Weiguang Lv Xiaohong Zheng Li Li Hongbin Cao Yi Zhang Renjie Chen Hancheng Ou Fei Kang Zhi Sun 

作者机构：National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyInstitute of Process EngineeringInnovation Academy for Green ManufactureChinese Academy of SciencesBeijing100190China School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijing100190China School of Materials Science&EngineeringBeijing Institute of TechnologyBeijing100081China Ganzhou Highpower Technology Co.Ltd.Ganzhou341000China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2021年第15卷第5期

页      面：1243-1256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）] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：the great help on thermodynamics calculation using HSC 6.0 software and the financial support on this research from the National Key Research and Development Program of China(Grant Nos.2017YFB0403300/2017YFB0403305) the National Natural Science Foundation of China under Grant Nos.51874269 and 51934006,and 1000 Talents Program of China(Z.S.) the Innovation Academy for Green Manufacture,Chinese Academy of Sciences(IAGM-2019-A15) the Key Program of Chinese Academy of Sciences(ZDRW_CN_2020-1) 

主　　题：recycling spent LIBs selective recovery hydrothermal treatment 

摘      要：Spent lithium-ion battery recycling has attracted significant attention because of its importance in regard to the environment and resource *** hydrometallurgical methods usually leach all valuable metals and subsequently extract target meals to prepare corresponding ***,Li recovery in these processes requires lengthy operational procedures,and the recovery efficiency is *** this research,we demonstrate a method to selectively recover lithium before the leaching of other elements by introducing a hydrothermal *** 90%of Li is leached from high-Ni layered oxide cathode powders,while consuming a nearly stoichiometric amount of hydrogen *** this selective recovery of Li,the transition metals remain as solid residue hydroxides or ***,the extraction of Li is found to be highly dependent on the content of transition metals in the cathode materials.A high leaching selectivity of Li(98%)and nearly 95%leaching efficiency of Li can be reached with LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2).In this case,both the energy and material consumption during the proposed Li recovery is significantly decreased compared to traditional methods;furthermore,the proposed method makes full use of H+to leach Li+.This research is expected to provide new understanding for selectively recovering metal from secondary resources.