期刊
ELECTROCHIMICA ACTA
卷 80, 期 -, 页码 264-268出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.07.004
关键词
CuS cathode; Electrochemical properties; Lithium ion battery; Cyclic voltammetry
资金
- Education Science Foundation of Hubei Province [Q20091806]
- Project of Chinese Ministry of Education [208088]
- National Natural Science Foundation of China [31101370]
A simple approach, for the first time, was presented for in situ preparation of the CuS cathode. The obtained CuS cathodes were investigated by the measurements of X-ray diffraction pattern, scanning electronic microscopy, and electrochemical performance. The results indicate the CuS cathodes are composed of plenty of nano flakes, which construct a large 3-D net structure. Moreover, the CuS cathodes exhibit reversible capacity of 447.4, 414.1, 389.9 and 376.0 mAh g(-1) at 0.2 C, 0.5 C, 1 C and 2 C respectively and excellent cycle stability for more than 100 cycles. The possible mechanism of the unique stability of the CuS cathode was discussed. (C) 2012 Elsevier Ltd. All rights reserved.
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