A ternary composite nanofiber-derived thin membrane electrolyte for solid-state Li metal batteries

We develop novel membrane electrolytes comprising h-BN-doped poly(ethylene oxide) modified poly(vinylidene fluoride- co -hexafluoropropylene)-nanofibers (h-BN@PEO/PVH) with high ionic conductivity (3.3 × 10 −4 S cm −1 ) and Li + transference number (0.74), endowing solid LiFePO 4 //Li batteries with...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-11, Vol.6 (92), p.1353-13533
Main Authors: Gong, Xiaoqi, Pan, Yaozheng, Zhong, Linfeng, Wang, Jiasheng, Liu, Fujie, Qi, Guangsheng, Li, Jing, Liu, Cong, Yu, Dingshan
Format: Article
Language:English
Subjects:
Electrolytes
Ethylene oxide
Interface stability
Ion currents
Lithium batteries
Membranes
Molten salt electrolytes
Nanofibers
Polyethylene oxide
Solid electrolytes
Vinylidene
Vinylidene fluoride
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Summary:We develop novel membrane electrolytes comprising h-BN-doped poly(ethylene oxide) modified poly(vinylidene fluoride- co -hexafluoropropylene)-nanofibers (h-BN@PEO/PVH) with high ionic conductivity (3.3 × 10 −4 S cm −1 ) and Li + transference number (0.74), endowing solid LiFePO 4 //Li batteries with excellent cyclability over 1000 cycles at 60 °C. Our strategy surmounts the ionic conduction-interface stability trade-off and thin dimension-flexibility conflict. We develop a novel membrane electrolyte comprising h-BN-doped PEO modified PVDF-HFP-nanofibers with high ionic conductivity (3.3 × 10 −4 S cm −1 ) and Li + transference number (0.74), endowing solid LiFePO 4 //Li batteries with excellent cyclability.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc04550e