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FTIR spectroscopy of metal oxide insertion electrodes: Thermally induced phase transitions in LixMn2O4 spinels

被引：34
作者：
Richardson, TJ
Ross, PN
机构：
[1] Materials Sciences Division, Ernest Orlando Lawrence Berkeley N., Berkeley, CA 94720
来源：
MATERIALS RESEARCH BULLETIN | 1996年 / 31卷 / 08期
关键词：
oxides; infrared spectroscopy; energy storage; phase transitions;
D O I：
10.1016/S0025-5408(96)00079-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
LixMn2O4 spinels with x = 0.1, 1.0 and 2.0 were examined by Fourier transform infrared spectroscopy at temperatures ranging from -150 to 250 degrees C. The occurrence of a reversible phase transition near 10 degrees C in LiMn2O4 was confirmed. The thermal decomposition of Li0.1Mn2O4 to beta-MnO2 was studied as a function of time and temperature. The instability of this material in its charged state raises some concern about its viability in rechargeable lithium cells.
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页码：935 / 941
页数：7
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