Solid State Ionics, volume 362, pages 115583
Optimization of lithium ion conductivity of Li2S-P2S5 glass ceramics by microstructural control of crystallization kinetics
Shutong Lu
1
,
Fumihiko Kosaka
2, 3
,
Shinya Shiotani
4
,
Hirofumi Tsukasaki
5
,
Shigeo Mori
5
,
Junichiro Otomo
2, 6
1
Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8563, Japan.
|
2
Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8563, Japan
|
4
Battery Material Engineering & Research Div., Toyota Motor Corporation, Susono, Shizuoka 410-1193, Japan
|
Publication type: Journal Article
Publication date: 2021-04-01
General Chemistry
Condensed Matter Physics
General Materials Science
Abstract
To improve the Li ion conductivity in a glass-ceramic solid electrolyte, the microstructural control for Li2S-P2S5 glass ceramics was investigated based on crystallization kinetics. 75Li2S∙25P2S5 (mol.%) glass was synthesized by a ball-milling method, and glass-ceramics were prepared by crystallization with heat treatment at various temperatures with appropriate holding times. Crystallization kinetics—nucleation rate, I, and crystal growth rate, U, of 75Li2S∙25P2S5 glass—were determined by differential thermal analysis and in situ transmission electron microscopy (TEM). The obtained parameters were referred to optimize the heat treatment conditions. Through the optimization, Li ion conductivity was improved by 80% in comparison with the glass electrolyte, in which a conductivity of 1.33 × 10−3 S cm−1 was achieved at room temperature by controlling the microstructure and the formation of a network structure in the glass matrix. This approach brings out the best performance of 75Li2S∙25P2S5 glass-ceramics. The effective medium theory was adopted to discuss the formation of a fast ion-conducting network for the improvement of Li ion conductivity. The present method can provide an effective preparation route of a glass-ceramic solid electrolyte for all-solid Li-ion batteries.
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- We do not take into account publications without a DOI.
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Lu S. et al. Optimization of lithium ion conductivity of Li2S-P2S5 glass ceramics by microstructural control of crystallization kinetics // Solid State Ionics. 2021. Vol. 362. p. 115583.
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Lu S., Kosaka F., Shiotani S., Tsukasaki H., Mori S., Otomo J. Optimization of lithium ion conductivity of Li2S-P2S5 glass ceramics by microstructural control of crystallization kinetics // Solid State Ionics. 2021. Vol. 362. p. 115583.
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TY - JOUR
DO - 10.1016/j.ssi.2021.115583
UR - https://doi.org/10.1016/j.ssi.2021.115583
TI - Optimization of lithium ion conductivity of Li2S-P2S5 glass ceramics by microstructural control of crystallization kinetics
T2 - Solid State Ionics
AU - Lu, Shutong
AU - Kosaka, Fumihiko
AU - Shiotani, Shinya
AU - Tsukasaki, Hirofumi
AU - Mori, Shigeo
AU - Otomo, Junichiro
PY - 2021
DA - 2021/04/01 00:00:00
PB - Elsevier
SP - 115583
VL - 362
SN - 0167-2738
ER -
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@article{2021_Lu,
author = {Shutong Lu and Fumihiko Kosaka and Shinya Shiotani and Hirofumi Tsukasaki and Shigeo Mori and Junichiro Otomo},
title = {Optimization of lithium ion conductivity of Li2S-P2S5 glass ceramics by microstructural control of crystallization kinetics},
journal = {Solid State Ionics},
year = {2021},
volume = {362},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.ssi.2021.115583},
pages = {115583},
doi = {10.1016/j.ssi.2021.115583}
}