Lithium recycling and cathode material regeneration from acid leach liquor of spent lithium-ion battery via facile co-extraction and co-precipitation processes

Yang, Yue, Xu, Shengming, and He, Yinghe (2017) Lithium recycling and cathode material regeneration from acid leach liquor of spent lithium-ion battery via facile co-extraction and co-precipitation processes. Waste Management, 64. pp. 219-227.

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Abstract

A novel process for extracting transition metals, recovering lithium and regenerating cathode materials based on facile co-extraction and co-precipitation processes has been developed. 100% manganese, 99% cobalt and 85% nickel are co-extracted and separated from lithium by D2EHPA in kerosene. Then, Li is recovered from the raffinate as Li2CO3 with the purity of 99.2% by precipitation method. Finally, organic load phase is stripped with 0.5 M H2SO4, and the cathode material LiNi1/3Co1/3Mn1/3O2 is directly regenerated from stripping liquor without separating metal individually by co-precipitation method. The regenerative cathode material LiNi1/3Co1/3Mn1/3O2 is miro spherical morphology without any impurities, which can meet with LiNi1/3Co1/3Mn1/3O2 production standard of China and exhibits good electrochemical performance. Moreover, a waste battery management model is introduced to guarantee the material supply for spent battery recycling.

Item ID: 50340
Item Type: Article (Research - C1)
ISSN: 1879-2456
Keywords: spent lithium-ion battery, co-extraction, valuable metals, regeneration
Funders: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals (SKL), National Natural Science Foundation of China (NNSFC), Tsinghua University, China (TUC)
Projects and Grants: SKL #SKL-SPM-201211, NNSFC #U1402274, TUC IRT13026
Date Deposited: 20 Sep 2017 08:02
FoR Codes: 09 ENGINEERING > 0914 Resources Engineering and Extractive Metallurgy > 091403 Hydrometallurgy @ 50%
09 ENGINEERING > 0914 Resources Engineering and Extractive Metallurgy > 091499 Resources Engineering and Extractive Metallurgy not elsewhere classified @ 50%
SEO Codes: 85 ENERGY > 8598 Environmentally Sustainable Energy Activities > 859805 Management of Solid Waste from Energy Activities @ 50%
97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 50%
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