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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.122  No.1427 (July) (2014)  >  pp.552-555

Journal of the Ceramic Society of Japan
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Evaluation of young’s modulus of Li2S–P2S5–P2O5 oxysulfide glass solid electrolytes

Atsutaka KATO1), Motohiro NAGAO1), Atsushi SAKUDA2), Akitoshi HAYASHI1), Masahiro TATSUMISAGO1)
1) Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University 2) Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)

Mechanical properties such as elastic modulus of solid electrolytes are important for all-solid-state batteries. To investigate the effects of a partial substitution of oxide for sulfide on Young’s modulus, 70Li2S·(30 − x)P2S5·xP2O5 (mol %) (x = 0, 3 and 10) oxysulfide glasses were prepared and characterized. Young’s moduli were measured by ultrasonic pulse echo method for the dense pellets prepared by hot pressing at around glass transition temperature. The Young’s moduli of 70Li2S·(30 − x)P2S5·xP2O5 glasses were 22–27 GPa and increased with an increase in the P2O5 content. The highest Young’s modulus in this report was 27 GPa for the glass with 10 mol % P2O5.

Young’s modulus, Oxysulfide glass, Solid electrolyte, All-solid-state battery, Hot press

Received: February 11, 2014
Accepted: May 03, 2014 , Published online: July 01, 2014
Copyright © 2014 The Ceramic Society of Japan



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