Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 5, Issue 12, Pages 979-982Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2003.09.014
Keywords
graphite; Li2CO3; surface modification; storage performance; Li-ion battery
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The effect of Li2CO3-coating on the performance of natural graphite in a Li-ion battery was studied. It is shown that Li2CO3-coating can effectively increase reversibility of the initial forming cycle of Li/graphite half-cell. More interestingly, the Li2CO3-coating significantly suppresses self-delithiation of the lithiated graphite, which enhances storage performance of the Li-ion battery. The Li2CO3-coated graphite also shows higher capacity retention after long-term cycling. (C) 2003 Elsevier B.V. All rights reserved.
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