Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Abstract Sulfide-based all-solid-state lithium batteries are a next-generation power source composed of the inorganic solid electrolytes which are incombustible and have high ionic conductivity. Positive electrode composites comprising LiNi1/3Mn1/3Co1/3O2 (NMC) and 75Li2S·25P2S5 (LPS) glass electrol...

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Autores principales: Hirofumi Tsukasaki, Yota Mori, Misae Otoyama, So Yubuchi, Takamasa Asano, Yoshinori Tanaka, Takahisa Ohno, Shigeo Mori, Akitoshi Hayashi, Masahiro Tatsumisago
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Publicado: Nature Portfolio 2018
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Acceso en línea:https://doaj.org/article/b73228646e6b4275b92f3a7744454622
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spelling oai:doaj.org-article:b73228646e6b4275b92f3a77444546222021-12-02T15:07:51ZCrystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer10.1038/s41598-018-24524-72045-2322https://doaj.org/article/b73228646e6b4275b92f3a77444546222018-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24524-7https://doaj.org/toc/2045-2322Abstract Sulfide-based all-solid-state lithium batteries are a next-generation power source composed of the inorganic solid electrolytes which are incombustible and have high ionic conductivity. Positive electrode composites comprising LiNi1/3Mn1/3Co1/3O2 (NMC) and 75Li2S·25P2S5 (LPS) glass electrolytes exhibit excellent charge–discharge cycle performance and are promising candidates for realizing all-solid-state batteries. The thermal stabilities of NMC–LPS composites have been investigated by transmission electron microscopy (TEM), which indicated that an exothermal reaction could be attributed to the crystallization of the LPS glass. To further understand the origin of the exothermic reaction, in this study, the precipitated crystalline phase of LPS glass in the NMC–LPS composite was examined. In situ TEM observations revealed that the β-Li3PS4 precipitated at approximately 200 °C, and then Li4P2S6 and Li2S precipitated at approximately 400 °C. Because the Li4P2S6 and Li2S crystalline phases do not precipitate in the single LPS glass, the interfacial contact between LPS and NMC has a significant influence on both the LPS crystallization behavior and the exothermal reaction in the NMC–LPS composites.Hirofumi TsukasakiYota MoriMisae OtoyamaSo YubuchiTakamasa AsanoYoshinori TanakaTakahisa OhnoShigeo MoriAkitoshi HayashiMasahiro TatsumisagoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Hirofumi Tsukasaki
Yota Mori
Misae Otoyama
So Yubuchi
Takamasa Asano
Yoshinori Tanaka
Takahisa Ohno
Shigeo Mori
Akitoshi Hayashi
Masahiro Tatsumisago
Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer
description Abstract Sulfide-based all-solid-state lithium batteries are a next-generation power source composed of the inorganic solid electrolytes which are incombustible and have high ionic conductivity. Positive electrode composites comprising LiNi1/3Mn1/3Co1/3O2 (NMC) and 75Li2S·25P2S5 (LPS) glass electrolytes exhibit excellent charge–discharge cycle performance and are promising candidates for realizing all-solid-state batteries. The thermal stabilities of NMC–LPS composites have been investigated by transmission electron microscopy (TEM), which indicated that an exothermal reaction could be attributed to the crystallization of the LPS glass. To further understand the origin of the exothermic reaction, in this study, the precipitated crystalline phase of LPS glass in the NMC–LPS composite was examined. In situ TEM observations revealed that the β-Li3PS4 precipitated at approximately 200 °C, and then Li4P2S6 and Li2S precipitated at approximately 400 °C. Because the Li4P2S6 and Li2S crystalline phases do not precipitate in the single LPS glass, the interfacial contact between LPS and NMC has a significant influence on both the LPS crystallization behavior and the exothermal reaction in the NMC–LPS composites.
format article
author Hirofumi Tsukasaki
Yota Mori
Misae Otoyama
So Yubuchi
Takamasa Asano
Yoshinori Tanaka
Takahisa Ohno
Shigeo Mori
Akitoshi Hayashi
Masahiro Tatsumisago
author_facet Hirofumi Tsukasaki
Yota Mori
Misae Otoyama
So Yubuchi
Takamasa Asano
Yoshinori Tanaka
Takahisa Ohno
Shigeo Mori
Akitoshi Hayashi
Masahiro Tatsumisago
author_sort Hirofumi Tsukasaki
title Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer
title_short Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer
title_full Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer
title_fullStr Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer
title_full_unstemmed Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer
title_sort crystallization behavior of the li2s–p2s5 glass electrolyte in the lini1/3mn1/3co1/3o2 positive electrode layer
publisher Nature Portfolio
publishDate 2018
url https://doaj.org/article/b73228646e6b4275b92f3a7744454622
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