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Composite Solid Polymer Electrolyte with Garnet Nanosheets in Poly(ethylene oxide)
Song, Shufeng; Wu, Yongmin; Tang, Weiping; Deng, Fan; Yao, Jianyao; Liu, Zongwen; Hu, Rongjie; Alamusi; Wen, Zhaoyin; Lu, Li; Hu, Ning
2019-04-01
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:7Pages:7163
SubtypeArticle
AbstractSolid electrolytes potentially provide safety, Li dendrites blocking, and electrochemical stability in Li-metal batteries. Large efforts have been devoted to disperse ceramic in a poly(ethylene oxide) (PEO) matrix to improve the ions transport. However, it is challengeable to create efficient framework for ions transport with nano-particles. Here we report for the first time garnet nanosheets to provide interconnected Li-ions transport pathway in a PEO matrix. The garnet nanosheet fillers would not only facilitate ions transport but also enhance ionic conductivity in comparison with their nanoparticle counterparts. A composite solid polymer electrolyte containing 15 wt % garnet nanosheets exhibits a practically useful conductivity of 3.6 x 10(-4) S cm(-1) at room temperature. Besides, the composite electrolyte can robustly isolate Li dendrites in a symmetric lithium metal-composite electrolyte battery during reversible Li dissolution/deposition at a relatively low temperature of 40 degrees C. The symmetric cell with composite electrolyte shows flat voltage and low interfacial resistance over a galvanostatic cycling of 200 h at a current density of 0.1 mA cm(-2). A solid-state Li/LiFePO4 battery with the composite polymer electrolyte exhibits a capacity of 98.1 mAh g(-1) and a capacity retention of 97.5% after 30 cycles at a temperature of 40 degrees C. This finding provides a strategy to explore superionic conductors.
KeywordGarnet nanosheet PEO Composite polymer electrolyte Conductivity
DOI10.1021/acssuschemeng.9b00143
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27221
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Song, Shufeng,Wu, Yongmin,Tang, Weiping,et al. Composite Solid Polymer Electrolyte with Garnet Nanosheets in Poly(ethylene oxide)[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(7):7163.
APA Song, Shufeng.,Wu, Yongmin.,Tang, Weiping.,Deng, Fan.,Yao, Jianyao.,...&Hu, Ning.(2019).Composite Solid Polymer Electrolyte with Garnet Nanosheets in Poly(ethylene oxide).ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(7),7163.
MLA Song, Shufeng,et al."Composite Solid Polymer Electrolyte with Garnet Nanosheets in Poly(ethylene oxide)".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.7(2019):7163.
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