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Effect of the Crystallinity of V6O13 Films on the Electrochemical Behavior of Lithium Microbatteries

Published online by Cambridge University Press:  16 February 2011

A. Gorenstein ,
A. Khelfa ,
J.P. Guesdon  and
C. Julien
A. Gorenstein
Affiliation:
Laboratoire de Physique des Solides, associé au CNRS, Université Pierre et Marie Curie 4 place Jussieu, 75252 Paris Cedex 05, France
A. Khelfa
Affiliation:
Laboratoire de Physique des Solides, associé au CNRS, Université Pierre et Marie Curie 4 place Jussieu, 75252 Paris Cedex 05, France
J.P. Guesdon
Affiliation:
Laboratoire de Physique des Solides, associé au CNRS, Université Pierre et Marie Curie 4 place Jussieu, 75252 Paris Cedex 05, France
C. Julien*
Affiliation:
Laboratoire de Physique des Solides, associé au CNRS, Université Pierre et Marie Curie 4 place Jussieu, 75252 Paris Cedex 05, France
*
Corresponding author
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Abstract

Electrochemical characteristics of Li/V6O13 microbatteries are evaluated in relation with the crystallinity and morphology of thin-film cathodes. Thin films of V6O13 were prepared using the flash evaporation technique. Amorphous and polycrystalline samples were characterized by X-Ray diffraction, Raman spectroscopy and conductivity measurements. The effect of either deposition parameters or post-deposition treatment are presented in this work. Thermodynamics and kinetics of lithium insertion were studied in V6O13 thin films obtained with various growth conditions. Discharge curves present different types of behavior depending on the cathode morphology. Diffusion coefficients and enhancement factors were calculated as a function of the degree of lithium intercalation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 369: Symposium U – Solid State Ionics IV , 1994 , 649
Copyright
Copyright © Materials Research Society 1995

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Footnotes

1

Permanent address: Physics Institute, Universidade Estadual de Campinas, CP6165, Campinas SP Brazil

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