首页|Recovery of cathode copper and ternary precursors from CuS slag derived by waste lithium-ion batteries:Process analysis and evaluation

Recovery of cathode copper and ternary precursors from CuS slag derived by waste lithium-ion batteries:Process analysis and evaluation

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The efficient and environmentally friendly recycling technology of waste residue that including abundant heavy metal produced during the recovery of lithium batteries has become a research hotspot.Herein,a novelty process of acid leaching-selective electrodeposition-deep impurity removal-regeneration was pro-posed to recovery of the CuS slag,which has been efficient transferred to high purity cathode copper and commercially available ternary precursors.Copper cathode with a purity of 99.67% was prepared under electrochemical reaction conditions at-0.55 V for 2h.A novel impurity remover-Mn powder,which was used to remove the residual impurities and as a feedstock for the ternary precursor.Finally,NCM523 was regenerated by co-precipitation.The process is superior to the traditional process in economy,energy consumption,CO2 emissions,product purity and process duration.This study provides a new approach for solid waste recovery and precious metal enrichment.

CuS slagElectrodepositionCathode copperTernary precursorSolid waste recovery

Yun Wei、Lei Zhou、Wenbin Hu、Liming Yang、Guang Yang、Chaoqiang Wang、Hui Shi、Fei Han、Yufa Feng、Xuan Ding、Penghui Shao、Xubiao Luo

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National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization,Nanchang Hangkong University,Nanchang 330063,China

CAS Key Laboratory of Green Process and Engineering,National Engineering Research Center of Green Recycling for Strategic Metal Resources,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China

Biomass Molecular Engineering Center and Anhui Provincial Key Laboratory of Microbial Pest Control,Anhui Agricultural University,Hefei 230036,China

Jiangxi Ganfeng Recycling Technology Co.LTD.,Xinyu 338004,China

School of Life Science,Jinggangshan University,Ji'an 343009,China

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Key Project of Research and Development Plan of Jiangxi ProvinceKey Project of Research and Development Plan of Jiangxi ProvinceNational Science Foundation of ChinaNational Science Fund for Distinguished Young Scholars

20223BBG7400620201BBE510075206001852125002

2024

10.1016/j.cclet.2023.109172

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(7)