Journal
JOURNAL OF POWER SOURCES
Volume 132, Issue 1-2, Pages 145-149Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2003.09.046
Keywords
LiCoO2; cathode; lithium rechargeable battery; recycling
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LiCoO2 cathode material is renovated and simultaneously separated from spent LiCoO2 electrodes containing LiCoO2, electron-conducting carbon, binder, Al current collector, and separator in a single synthetic step using hydrothermal method in a concentrated LiOH solution at 200degreesC without any scraping procedures. It is found that the renovated LiCoO2 phase crystallizes in the rhombohedral system with the space group R-3m. Although the obtained material has some electrochemically inactive impurities, the renovated LiCoO2 phase exhibits the first discharge capacity of 144.0 mAh/g and the discharge capacity retention of 92.2% after 40 cycles. (C) 2003 Elsevier B.V. All rights reserved.
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