High field ESR measurements on the lithium-ion battery substance LiMn2O4

被引:1
|
作者
Takano, S. [1 ]
Kaji, T. [1 ]
Okubo, S. [2 ,3 ,4 ]
Yoshida, M. [4 ]
Inagaki, Y. [5 ]
Kimura, S. [6 ]
Asano, T. [7 ,8 ]
Ohta, H. [2 ,3 ,4 ]
Kunimoto, T. [9 ]
Dziembaj, R. [10 ]
Molenda, M. [10 ]
Rudowicz, C. [11 ]
机构
[1] Kobe Univ, Grad Sch Sci & Technol, 1-1 Rokkodai, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan
[3] Kobe Univ, Mol Photosci Res Ctr, Kobe, Hyogo 6578501, Japan
[4] Kobe Univ, Venture Business Lab, Kobe, Hyogo 6578501, Japan
[5] Kyushu Univ, Dept Chem, Fukuoka 8128581, Japan
[6] Osaka Univ, KYOKUGEN, Toyonaka, Osaka 5608531, Japan
[7] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan
[8] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan
[9] Tokushima Bunri Univ, Dept Nano Mat & Bio Engn, Kagawa 7692193, Japan
[10] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland
[11] Tech Univ Szczecin, Inst Phys, PL-70310 Szczecin, Poland
关键词
D O I
10.1002/pssc.200669534
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
High field ESR measurements of LiMn2O4 powder samples, which are obtained by the sol-gel method with calcinations at 700 and 850 degrees C, have been performed under the pulsed magnetic field up to 16 T and in the temperature region from 4.2 to 300 K. Analysis of the obtained data in connection with the magnetic susceptibility and our previous ESR data shows that the high field ESR is a powerful means for the characterization of LiMn2O4 powder samples. Our result shows that the impurity phase Li2MnO3 already exits in the sample obtained by calcinations at 850 degrees C and the sample obtained by calcinations at 600 degrees C is close to the stoichiometry. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheirn
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页码:2820 / +
页数:2
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