An Advanced Gel Polymer Electrolyte for Solid-State Lithium Metal Batteries - Details

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All-solid-state　lithium　metal　batteries　(LMBs)　are　regarded　as　one　of　the　most　viable　energy　storage　devices　and　their　comprehensive　properties　are　mainly　controlled　by　solid　electrolytes　and　interface　compatibility.　This　work　proposes　an　advanced　poly(vinylidene　fluoride-hexafluoropropylene)　based　gel　polymer　electrolyte　(AP-GPEs)　via　functional　superposition　strategy,　which　involves　incorporating　butyl　acrylate　and　polyethylene　glycol　diacrylate　as　elastic　optimization　framework,　triethyl　phosphate　and　fluoroethylene　carbonate　as　flameproof　liquid　plasticizers,　and　Li7La3Zr2O12　nanowires　(LLZO-w)　as　ion-conductive　fillers,　endowing　the　designed　AP-GPEs/LLZO-w　membrane　with　high　mechanical　strength,　excellent　flexibility,　low　flammability,　low　activation　energy　(0.137 eV),　and　improved　ionic　conductivity　(0.42　×　10−3　S　cm−1　at　20　°C)　due　to　continuous　ionic　transport　pathways.　Additionally,　the　AP-GPEs/LLZO-w　membrane　shows　good　safety　and　chemical/electrochemical　compatibility　with　the　lithium　anode,　owing　to　the　synergistic　effect　of　LLZO-w　filler,　flexible　frameworks,　and　flame　retardants.　Consequently,　the　LiFePO4/Li　batteries　assembled　with　AP-GPEs/LLZO-w　electrolyte　exhibit　enhanced　cycling　performance　(87.3%　capacity　retention　after　600　cycles　at　1　C)　and　notable　high-rate　capacity　(93.3　mAh　g−1　at　5　C).　This　work　proposes　a　novel　functional　superposition　strategy　for　the　synthesis　of　high-performance　comprehensive　GPEs　for　LMBs.　©　2023　Wiley-VCH　GmbH.

Keyword：

Activation energy Fillers Fluorine compounds Interface states Ionic strength Lanthanum compounds Lithium compounds Lithium-ion batteries Nanowires Polyelectrolytes Solid electrolytes Solid-State Batteries Solid state devices Solvents Zirconium compounds

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[ 1 ] [Xian, Chunxiang]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 2 ] [Zhang, Shengzhao]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 3 ] [Liu, Ping]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 4 ] [Huang, Lei]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 5 ] [He, Xinping]College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou; 310014, China
[ 6 ] [Shen, Shenghui]School of Materials Science and & Engineering, Zhejiang Sci-Tech University, Hangzhou; 310018, China
[ 7 ] [Cao, Feng]Department of Engineering Technology, Huzhou College, Huzhou; 313000, China
[ 8 ] [Liang, Xinqi]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 9 ] [Liang, Xinqi]Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu; 611371, China
[ 10 ] [Liang, Xinqi]Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin; 150080, China
[ 11 ] [Wang, Chen]Zhejiang Academy of Science and Technology for Inspection & Quarantine, Zhejiang, Hangzhou; 311215, China
[ 12 ] [Wan, Wangjun]Zhejiang Academy of Science and Technology for Inspection & Quarantine, Zhejiang, Hangzhou; 311215, China
[ 13 ] [Zhang, Yongqi]Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu; 611371, China
[ 14 ] [Liu, Xin]State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan; 430200, China
[ 15 ] [Zhong, Yu]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 16 ] [Xia, Yang]College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou; 310014, China
[ 17 ] [Chen, Minghua]Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin; 150080, China
[ 18 ] [Zhang, Wenkui]College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou; 310014, China
[ 19 ] [Xia, Xinhui]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China
[ 20 ] [Xia, Xinhui]College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou; 310014, China
[ 21 ] [Xia, Xinhui]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350116, China
[ 22 ] [Tu, Jiangping]School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China

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Small

ISSN： 1613-6810

Year： 2024

Issue： 15

Volume： 20

1 3 . 0 0 0

JCR@2023

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SCOPUS Cited Count： 1

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 2

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