Improvement of the Electrochemical Properties of LiMn2O4 by Doping Rare Earth Element Ce

Abstract:

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A series of cathode materials for Li-ion battery, spinel LiMn2-xCexO4 (x=0-0.03), were synthesized by the method of solid-state reaction at high temperature. The XRD data showed that all the synthesis samples were pure spinel phase. The results of charge-discharge tests show that LiMn1.98Ce0.02O4 has the highest discharge specific capacity of 119.6 mAh/g, and the discharge specific capacity of the material was 108.5 mAh/g after 50 cycles at room temperature with a retention of 91.0%, and the coulombic coefficient was still high up to 99.8%.

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Periodical:

Edited by:

Yafang Han, Fusheng Pan, Jianmao Tang, Chungen Zhou

Pages:

716-719

DOI:

10.4028/www.scientific.net/MSF.686.716

Citation:

H. L. Zhang et al., "Improvement of the Electrochemical Properties of LiMn2O4 by Doping Rare Earth Element Ce", Materials Science Forum, Vol. 686, pp. 716-719, 2011

Online since:

June 2011

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$35.00

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