Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery

Solid electrolytes with high ionic conductivity, high formability, and high electrochemical properties are required to improve the performance of all-solid-state sodium batteries. In this study, we focus on a combination of Na2.88Sb0.88W0.12S4 and NaI for preparing composite electrolytes Na2.88Sb0.8...

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Main Authors: Takuma TAKAYANAGI, Akira NASU, Fumika TSUJI, Atsushi SAKUDA, Masahiro TATSUMISAGO, Akitoshi HAYASHI
Format: Article
Language:English
Published: The Electrochemical Society of Japan 2022-04-01
Series:Electrochemistry
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/electrochemistry/90/4/90_22-00016/_html/-char/en
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author Takuma TAKAYANAGI
Akira NASU
Fumika TSUJI
Atsushi SAKUDA
Masahiro TATSUMISAGO
Akitoshi HAYASHI
author_facet Takuma TAKAYANAGI
Akira NASU
Fumika TSUJI
Atsushi SAKUDA
Masahiro TATSUMISAGO
Akitoshi HAYASHI
author_sort Takuma TAKAYANAGI
collection DOAJ
description Solid electrolytes with high ionic conductivity, high formability, and high electrochemical properties are required to improve the performance of all-solid-state sodium batteries. In this study, we focus on a combination of Na2.88Sb0.88W0.12S4 and NaI for preparing composite electrolytes Na2.88Sb0.88W0.12S4·xNaI, and investigate their crystal structures, microstructures, and electrochemical properties. NaI is uniformly dispersed in the composites without forming a solid solution with Na2.88Sb0.88W0.12S4. Na2.88Sb0.88W0.12S4·0.50NaI shows a high ionic conductivity of 3.6 × 10−2 S cm−1 after sintering at 275 °C for only 1.5 h. The charge-discharge characteristics of all-solid-state cells using the Na2.88Sb0.88W0.12S4·xNaI composite are also improved.
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spelling doaj.art-3cf68a80cd9547d6928c19452286d8dc2023-01-02T14:08:04ZengThe Electrochemical Society of JapanElectrochemistry2186-24512022-04-0190404700504700510.5796/electrochemistry.22-00016electrochemistryMechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium BatteryTakuma TAKAYANAGI0Akira NASU1Fumika TSUJI2Atsushi SAKUDA3Masahiro TATSUMISAGO4Akitoshi HAYASHI5Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture UniversitySolid electrolytes with high ionic conductivity, high formability, and high electrochemical properties are required to improve the performance of all-solid-state sodium batteries. In this study, we focus on a combination of Na2.88Sb0.88W0.12S4 and NaI for preparing composite electrolytes Na2.88Sb0.88W0.12S4·xNaI, and investigate their crystal structures, microstructures, and electrochemical properties. NaI is uniformly dispersed in the composites without forming a solid solution with Na2.88Sb0.88W0.12S4. Na2.88Sb0.88W0.12S4·0.50NaI shows a high ionic conductivity of 3.6 × 10−2 S cm−1 after sintering at 275 °C for only 1.5 h. The charge-discharge characteristics of all-solid-state cells using the Na2.88Sb0.88W0.12S4·xNaI composite are also improved.https://www.jstage.jst.go.jp/article/electrochemistry/90/4/90_22-00016/_html/-char/ensolid electrolyteall-solid-state sodium batterysulfidecomposite
spellingShingle Takuma TAKAYANAGI
Akira NASU
Fumika TSUJI
Atsushi SAKUDA
Masahiro TATSUMISAGO
Akitoshi HAYASHI
Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery
Electrochemistry
solid electrolyte
all-solid-state sodium battery
sulfide
composite
title Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery
title_full Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery
title_fullStr Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery
title_full_unstemmed Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery
title_short Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery
title_sort mechanochemically prepared highly conductive na2 88sb0 88w0 12s4 nai composite electrolytes for all solid state sodium battery
topic solid electrolyte
all-solid-state sodium battery
sulfide
composite
url https://www.jstage.jst.go.jp/article/electrochemistry/90/4/90_22-00016/_html/-char/en
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