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Journal of Rare Earths
Administrated by CAST
Sponsored by CSRE and GRINM
Published by Elsevier B.V.
Editor-in-Chief: XU Guang xian
Journal of Rare Earths
(monthly, Since 1990)
ISSN 1002-0721 CODEN: JREAE6
Journal of the Chinese Society of Rare Earths
(Bimonthly, Since 1983)
ISSN 1000-4343 CODEN: ZXXUE5
 
Journal of Rare Earths Issue
Journal of Rare Earths 2010 Year Vol.28 NO.3 Page: 435-438
Conductivity and dielectric studies on LiCeO2
M. Prabu1,2, S. Selvasekarapandian2, A.R. Kulkarni1, G. Hirankumar2 , C. Sanjeeviraja3
(1. Department of Metallurgical Engineering and Material Science, Indian Institute of Technology Bombay, Mumbai, India; 2. Department of Physics, Kalasalingam Uni-versity, Krishnankoil-626 190, Tamilnadu, India; 3. Department of Physics, Alagappa University, Karaikudi-630 003, Tamilnadu, India)
Abstract:

LiCeO2 was prepared by a solid-state reaction method using microwave heat treatment and identified by X-ray diffractometry. LiCeO2 has monoclinic crystal structure whose conductivity and dielectric properties were studied over a range of frequency (42 Hz to 1 MHz) and temperatures (30–500 °C) using ac technique of complex impedance analyzer HIOKI 3532. Combined impedance and modulus plots were used as tools to analyze the sample behaviour as a function of frequency at different temperatures. The d.c. conductivity (σdc) followed the Arrhenius relation. The modulus analysis and dielectrics studies showed the non-Debye dielectric relaxation nature.

Key word: lithium-ion batteries; impedance; conductivity; dielectric analysis; complex modulus; rare earths
    
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