Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries

The lithium superionic conductor Li10GeP2S12 (LGPS) and its crystal structure analogues can be applied as solid electrolytes for all-solid-state lithium-ion batteries due to their exceptionally high ionic conductivities, which exceed 10 mS cm−1 at room temperature. This paper reviews the author’s pu...

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Published in:Electrochemistry
Main Author: Satoshi HORI
Format: Article
Language:English
Published: The Electrochemical Society of Japan 2024-10-01
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/electrochemistry/92/10/92_24-00075/_html/-char/en
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author Satoshi HORI
author_facet Satoshi HORI
author_sort Satoshi HORI
collection DOAJ
container_title Electrochemistry
description The lithium superionic conductor Li10GeP2S12 (LGPS) and its crystal structure analogues can be applied as solid electrolytes for all-solid-state lithium-ion batteries due to their exceptionally high ionic conductivities, which exceed 10 mS cm−1 at room temperature. This paper reviews the author’s publications into LGPS and its derivatives. Initially, its unique crystal structure is described with a particular focus on the ionic conduction mechanism. Subsequently, the syntheses of various structural analogues of LGPS are summarized, focusing on the phase diagram containing LGPS, as well as highlighting Li9.54[Si0.6Ge0.4]1.74P1.44S11.1Br0.3O0.6, which was discovered during high-entropy material design. Finally, the development and understanding of all-solid-state batteries that incorporate the developed solid electrolytes are described. This review is notable due to the importance of discovering novel solid electrolytes for further clarification of the superionic conduction mechanism and for improving battery performances.
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spelling doaj-art-bc5ffe2a080f44c7b869bf5abe24f0d72025-08-20T01:40:15ZengThe Electrochemical Society of JapanElectrochemistry2186-24512024-10-01921010100610100610.5796/electrochemistry.24-00075electrochemistryDevelopment of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state BatteriesSatoshi HORI0https://orcid.org/0000-0001-7845-3518Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of TechnologyThe lithium superionic conductor Li10GeP2S12 (LGPS) and its crystal structure analogues can be applied as solid electrolytes for all-solid-state lithium-ion batteries due to their exceptionally high ionic conductivities, which exceed 10 mS cm−1 at room temperature. This paper reviews the author’s publications into LGPS and its derivatives. Initially, its unique crystal structure is described with a particular focus on the ionic conduction mechanism. Subsequently, the syntheses of various structural analogues of LGPS are summarized, focusing on the phase diagram containing LGPS, as well as highlighting Li9.54[Si0.6Ge0.4]1.74P1.44S11.1Br0.3O0.6, which was discovered during high-entropy material design. Finally, the development and understanding of all-solid-state batteries that incorporate the developed solid electrolytes are described. This review is notable due to the importance of discovering novel solid electrolytes for further clarification of the superionic conduction mechanism and for improving battery performances.https://www.jstage.jst.go.jp/article/electrochemistry/92/10/92_24-00075/_html/-char/enall-solid-state batteryli10gep2s12lgpsli-ion superionic conductor
spellingShingle Satoshi HORI
Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries
all-solid-state battery
li10gep2s12
lgps
li-ion superionic conductor
title Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries
title_full Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries
title_fullStr Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries
title_full_unstemmed Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries
title_short Development of Li10GeP2S12-type Solid Electrolytes for the Understanding of Superionic Conduction, and Their Application in All-solid-state Batteries
title_sort development of li10gep2s12 type solid electrolytes for the understanding of superionic conduction and their application in all solid state batteries
topic all-solid-state battery
li10gep2s12
lgps
li-ion superionic conductor
url https://www.jstage.jst.go.jp/article/electrochemistry/92/10/92_24-00075/_html/-char/en
work_keys_str_mv AT satoshihori developmentofli10gep2s12typesolidelectrolytesfortheunderstandingofsuperionicconductionandtheirapplicationinallsolidstatebatteries