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Sol-Gel Lithium Silicate Electrolyte Thin Films

Published online by Cambridge University Press:  21 February 2011

E. Mouchon,
L. C. Klein,
V. Picard and
M. Greenblatt
E. Mouchon
Affiliation:
Ceramics Department, and
L. C. Klein
Affiliation:
Ceramics Department, and
V. Picard
Affiliation:
Ceramics Department, and
M. Greenblatt
Affiliation:
Chemistry Department, Rutgers-the State University of New Jersey, P.O. Box 909, Piscataway, NJ 08855–0 909.
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Abstract

For more than a decade, the sol-gel process has been used to prepare lithiumsilicate gels that have potential applications as solid electrolytes inlithium batteries and electrochromic windows. The interest in these Li2O-SiC2 materials is their fast and stable ionicconductivity from room temperature up to 350°C. Typically these materialshave been prepared with 15 mole % Li2O in bulk samples, butrarely in thin films. This work was undertaken to prepare chemically stablelithium silicate thin films with up to 30 mole % Li2O. Lithiumnitrate was used as the lithium precursor. Solutions were evaluated forgelling time and homogeneity. Thin films were made by dip coating. Afterheat treatment at 200, 250 and 300°C, films were characterized for surfacequality, thickness and microstructure using electron microscopy, x-raydiffraction analysis and profilometry. Transparency was investigated in thevisible range (350–800 nm).

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994, 189
Copyright
Copyright © Materials Research Society 1998

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References

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