期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 24, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202202558
关键词
Coordination Environment; Deep Eutectic Solvents; Recycling; Selective Extraction; Spent Cathode
资金
- Basic Science Center Project of National Natural Science Foundation of China [51788104]
- National Key RAMP
- D Program of China [2021YFB2400200]
- National Natural Science Foundation of China [21905286, 21773264, 51772301]
- Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences [XDA21070300]
This study proposes a novel strategy for the selective extraction of nickel, cobalt, and manganese from the cathode of LiNixCoyMn1-x-yO2 (NCM) by regulating the coordination environment. The results show high recovery yields and indicate the potential of fine-tuning the coordination environment of metal ions in the battery recycling industry.
The complexity of chemical compounds in lithium-ion batteries (LIBs) results in great difficulties in the extraction of multiple transition metals, which have similar physicochemical characteristics. Here, we propose a novel strategy for selective extraction of nickel, cobalt, and manganese from spent LiNixCoyMn1-x-yO2 (NCM) cathode through the regulation of coordination environment. Depending on adjusting the composition of ligand in transition metal complexes, a tandem leaching and separation system is designed and finally enables nickel, cobalt, and manganese to enrich in the form of NiO, Co3O4, and Mn3O4 with high recovery yields of 99.1 %, 95.1 %, and 95.3 %, respectively. We further confirm that the combination of different transition metals with well-designed ligands is the key to good selectivity. Through our work, fine-tuning the coordination environment of metal ions is proved to have great prospects in the battery recycling industry.
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