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Recycling cobalt from spent lithium ion battery
- XIA Zhi-dong, XIE Xiao-qian, SHI Yao-wu, LEI Yong-ping, GUO Fu
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School of Materials Science and Engineering, Beijing University of Technology
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History
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Published |
05 Sep 2008 |
Issue Date |
05 Sep 2008 |
Spent lithium ion battery is a useful resource of cobalt. In this paper, cobalt was recovered by a chemical process based upon the analysis of the structure and composition of the lithium ion battery. X-ray diffraction results show that cobalt oxalate and cobaltous sulfate have been obtained in two different processes. Compared with the cobaltous oxalate process, the cobaltous sulfate process was characterized by less chemical substance input and a cobalt recovery rate of as much as 88%. A combination of these two processes in the recycling industry may win in the aspects of compact process and high recovery rate.
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