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Phase Transition of LiMn2O4 Spinel and its Application for Lithium Ion Secondary Battery

Published online by Cambridge University Press:  10 February 2011

Junji Tabuchi ,
Tatsuji Numata ,
Yuichi Shimakawa  and
Masato Shirakata
Junji Tabuchi
Affiliation:
Material Development Center, NEC Corporation, Kawasaki, Japan
Tatsuji Numata
Affiliation:
Material Development Center, NEC Corporation, Kawasaki, Japan
Yuichi Shimakawa
Affiliation:
Fundamental Research Laboratories, NEC Corporation, Tsukuba, Japan
Masato Shirakata
Affiliation:
Nippon Moli Energy Corporation, Toyama, Japan
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Abstract

LiMn2O4 has a phase transition at room temperature, which is caused by Jahn-Teller distortion. DC resistivity of LiMn2O4 shows an anomaly at the transition temperature, while no such anomaly is observed in samples with excess lithium. X-ray diffraction patterns of LiMn2O4reveal that the crystal structure changes from cubic at higher temperature to orthorombic, as a first approximation, at lower temperature. However, no differences in initial charge-discharge curve are observed, which means that the Jahn-Teller distortion has no effect on electrochemical characteristics. The authors have succeeded in mass-producing lithium ion secondary batteries with a manganese spinel cathode.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 496: Symposium Y – Materials For Electrochemical Energy Storage & Conversion II… , 1997 , 287
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Yamada, A., J. Solid State Chem., 122, p. 160 (1996)10.1006/jssc.1996.0097Google Scholar
2. Shimakawa, Y., Numata, T. and Tabuchi, J., J. Solid State Chem., 131, p. 138 (1997)10.1006/jssc.1997.7366Google Scholar
3. Gummow, R. J., de Kock, A. and Thackeray, M. M., Solid State Ionics, 69, p. 59 (1994)10.1016/0167-2738(94)90450-2Google Scholar
4. Numata, T., Kumeuchi, T., Tabuchi, J., von Sacken, U., Reimers, J. N. and Zhong, Q., NEC Res. & Develop., 38, No. 3 p. 294 (1997)Google Scholar
5. Izumi, E, “The Rietveld Method (R. A. Young, Ed.)”, p.236 Oxford Univ. Press, Oxford (1993)Google Scholar
6. Yamada, A. and Tanaka, M., Mater. Res. Bull., 30, p. 715 (1995)10.1016/0025-5408(95)00048-8Google Scholar