Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: The 56th Symposium on Basic Science of Ceramics: Full papers
Formation of bismuth metal in bismuth borate glass by reductive heat treatment and its electrochemical property as anode in lithium ion battery
Yusuke OMORITsuyoshi HONMATakayuki KOMATSU
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2018 Volume 126 Issue 10 Pages 820-825


The crystallization behavior of bismuth borate glass in hydrogen argon mixed atmosphere was examined. When the 70B2O3–30Bi2O3 glass prepared by the melt quenching method was heat treated in a 5% hydrogen-95% argon atmosphere, spherical bismuth metal particles were formed in the glass matrix at 380°C, which is higher than glass transition temperature at 336°C and close to crystallization temperature at 399°C. As increase of heat treatment temperature, the diameter of bismuth grain was increased. Electrochemical activity of bismuth metal containing glass-ceramics was also evaluated as a negative electrode in lithium ion battery. Suppression of irreversible capacity at initial cycle due to lithium insertion was successfully performed by reductive heat treatment for crystallization of bismuth metal into glass matrix.

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© 2018 The Ceramic Society of Japan
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