Abstract
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.
基金项目
Key Project of Research and Development Plan of Jiangxi Province(20223BBG74006)
Key Project of Research and Development Plan of Jiangxi Province(20201BBE51007)
National Science Foundation of China(52060018)
National Science Fund for Distinguished Young Scholars(52125002)
维普
万方数据