A halide-oxide composite solid-state electrolyte for enhancing ionic conductivity by promoting interfacial healing through low-temperature heat treatment - Details

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Abstract：

An　ideal　solid-state　electrolyte　needs　to　combine　the　properties　of　high　ionic　conductivity,　wide　electrochemical　stability　window,　high　electrode–electrolyte　chemical　compatibility,　and　low　cost.　Composite　solid-state　electrolyte　is　one　of　the　feasible　ways　to　solve　this　problem.　In　this　work,　a　composite　solid-state　electrolyte　Li2ZnSiO4　(LZSO)/　LiAlCl4　is　reported.　The　low　melting-point　LiAlCl4　is　introduced　to　solve　the　interfacial　impedance　problem　of　LZSO　solid-state　electrolyte　due　to　the　hardness　of　the　particles.　The　structure　and　electrochemical　properties　of　the　two　compositions　were　also　characterized,　and　the　effects　of　different　composite　ratios　on　the　ionic　conductivity　of　the　composite　solid-state　electrolyte　and　the　low-temperature　healing　surface　structure　on　the　performance　enhancement　were　investigated.　The　optimal　ratio　LZSO/LiAlCl4　(7:3)　exhibits　good　interfacial　contactness　and　an　ionic　conductivity　of　1.65　×　10−4　S　cm−1　at　60 °C　as　well　as　a　low　activation　energy　of　0.31 eV.　The　assembled　lithium　symmetric　batteries　were　stably　cycled　up　to　750 h.　Compared　with　the　single　component　of　LZSO,　which　cannot　satisfy　the　full-cell　assembly,　Li/LFP　batteries　assembled　with　composite　solid-state　electrolytes　exhibit　good　cycling　performance.　©　The　Author(s),　under　exclusive　licence　to　Springer-Verlag　GmbH　Germany,　part　of　Springer　Nature　2024.

Keyword：

Interfacial healing Li2ZnSiO4 LiAlCl4 Solid-state lithium metal batteries

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[ 1 ] [Xu C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Xu C.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China
[ 3 ] [Chao Y.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 4 ] [Chao Y.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China
[ 5 ] [Yang S.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 6 ] [Yang S.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China
[ 7 ] [Li B.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Li B.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China
[ 9 ] [Yu Y.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 10 ] [Yu Y.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China
[ 11 ] [Xu X.]Jiangxi Anchi New Energy Technology Co., Ltd, Jiangxi Province, Shangrao, China
[ 12 ] [Sun Y.]Jiangxi Anchi New Energy Technology Co., Ltd, Jiangxi Province, Shangrao, China
[ 13 ] [Liu Z.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 14 ] [Liu Z.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China
[ 15 ] [Wang Q.]Shanxi Energy Internet Research Institute, Shanxi, Taiyuan, 030024, China
[ 16 ] [Yang C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 17 ] [Yang C.]Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fujian Province, Fuzhou, 350108, China

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Source ：

Journal of Solid State Electrochemistry

ISSN： 1432-8488

Year： 2025

2 . 6 0 0

JCR@2023

CAS Journal Grade：4

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 5

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