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Recovery of cathode copper and ternary precursors from CuS slag derived by waste lithium-ion batteries:Process analysis and evaluation
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作者 Yun Wei Lei Zhou +9 位作者 Wenbin Hu Liming Yang Guang Yang Chaoqiang Wang Hui Shi Fei Han Yufa Feng Xuan Ding Penghui Shao Xubiao Luo 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第7期178-182,共5页
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 pro... 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 proposed 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 2 h.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,CO_(2)emissions,product purity and process duration.This study provides a new approach for solid waste recovery and precious metal enrichment. 展开更多
关键词 CuS slag Electrodeposition Cathode copper ternary precursor Solid waste recovery
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