A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges

Traditional lithium-ion batteries (LIBs) utilize liquid electrolytes, which pose significant safety risks. To address these concerns and enhance energy density, all-solid-state batteries (ASSBs) have emerged as a safer and more efficient alternative to conventional liquid electrolyte-based systems....

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Main Authors: Bin Man, Yulong Zeng, Qingrui Liu, Yinwen Chen, Xin Li, Wenjing Luo, Zikang Zhang, Changliang He, Min Jie, Sijie Liu
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Crystals
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Online Access:https://www.mdpi.com/2073-4352/15/6/492
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author Bin Man
Yulong Zeng
Qingrui Liu
Yinwen Chen
Xin Li
Wenjing Luo
Zikang Zhang
Changliang He
Min Jie
Sijie Liu
author_facet Bin Man
Yulong Zeng
Qingrui Liu
Yinwen Chen
Xin Li
Wenjing Luo
Zikang Zhang
Changliang He
Min Jie
Sijie Liu
author_sort Bin Man
collection DOAJ
description Traditional lithium-ion batteries (LIBs) utilize liquid electrolytes, which pose significant safety risks. To address these concerns and enhance energy density, all-solid-state batteries (ASSBs) have emerged as a safer and more efficient alternative to conventional liquid electrolyte-based systems. ASSBs offer notable advantages, including higher energy density and improved safety, driving growing interest from both industry and academia. A key component in all-solid-state battery (ASSB) development is the solid-state electrolyte (SSE), which plays a crucial role in determining the overall performance and safety of these batteries. Sulfide SSEs are characterized by distinctive attributes, including notably high ionic conductivity and remarkably low interfacial resistance with lithium metal anodes, which renders them particularly advantageous for advancing ASSB technology. This paper systematically examines sulfide-based SSEs, with particular emphasis on their underlying physicochemical properties, structural characteristics, and essential functional attributes relevant to ASSB applications. Additionally, we explore preparation methods for sulfide SSEs and analyze their potential applications in next-generation ASSBs. Considering current challenges (e.g., interfacial instability or air sensitivity) we summarize strategies to address these obstacles, aiming to facilitate their integration into future energy storage systems.
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institution Kabale University
issn 2073-4352
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series Crystals
spelling doaj-art-9abe1ab65f444fcba74e97042f69b59a2025-08-20T03:27:21ZengMDPI AGCrystals2073-43522025-05-0115649210.3390/cryst15060492A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and ChallengesBin Man0Yulong Zeng1Qingrui Liu2Yinwen Chen3Xin Li4Wenjing Luo5Zikang Zhang6Changliang He7Min Jie8Sijie Liu9School of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaSchool of Aerospace Engineering & High-Performance Battery Laboratory, Geely University, Chengdu 641423, ChinaResearch Institute of Tsinghua University in Shenzhen, Shenzhen 518000, ChinaResearch Institute of Tsinghua University in Shenzhen, Shenzhen 518000, ChinaTraditional lithium-ion batteries (LIBs) utilize liquid electrolytes, which pose significant safety risks. To address these concerns and enhance energy density, all-solid-state batteries (ASSBs) have emerged as a safer and more efficient alternative to conventional liquid electrolyte-based systems. ASSBs offer notable advantages, including higher energy density and improved safety, driving growing interest from both industry and academia. A key component in all-solid-state battery (ASSB) development is the solid-state electrolyte (SSE), which plays a crucial role in determining the overall performance and safety of these batteries. Sulfide SSEs are characterized by distinctive attributes, including notably high ionic conductivity and remarkably low interfacial resistance with lithium metal anodes, which renders them particularly advantageous for advancing ASSB technology. This paper systematically examines sulfide-based SSEs, with particular emphasis on their underlying physicochemical properties, structural characteristics, and essential functional attributes relevant to ASSB applications. Additionally, we explore preparation methods for sulfide SSEs and analyze their potential applications in next-generation ASSBs. Considering current challenges (e.g., interfacial instability or air sensitivity) we summarize strategies to address these obstacles, aiming to facilitate their integration into future energy storage systems.https://www.mdpi.com/2073-4352/15/6/492ASSBsulfide SSEionic conduction mechanism
spellingShingle Bin Man
Yulong Zeng
Qingrui Liu
Yinwen Chen
Xin Li
Wenjing Luo
Zikang Zhang
Changliang He
Min Jie
Sijie Liu
A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges
Crystals
ASSB
sulfide SSE
ionic conduction mechanism
title A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges
title_full A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges
title_fullStr A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges
title_full_unstemmed A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges
title_short A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges
title_sort comprehensive review of sulfide solid state electrolytes properties synthesis applications and challenges
topic ASSB
sulfide SSE
ionic conduction mechanism
url https://www.mdpi.com/2073-4352/15/6/492
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