A new metal-organic rotaxane framework for enhanced ion conductivity of solid-state electrolyte in lithium-metal batteries
Ying Li 1Yanjun Xu 1Xingqi Han 2Di Han 1Xuesong Wu 1Xinlong Wang 3Zhongmin Su4
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作者信息
1. School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry;Jilin Provincial International Joint Research Center of Photo-functional Materials and Chemistry,Changchun 130022,China
2. School of Marine Science and Engineering,Hainan Provincial Key Lab of Fine Chemistry,School of Chemical Engineering and Technology,Hainan University,Haikou 570228,China
3. School of Marine Science and Engineering,Hainan Provincial Key Lab of Fine Chemistry,School of Chemical Engineering and Technology,Hainan University,Haikou 570228,China;School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry;Jilin Provincial International Joint Research Center of Photo-functional Materials and Chemistry,Changchun 130022,China
4. School of Marine Science and Engineering,Hainan Provincial Key Lab of Fine Chemistry,School of Chemical Engineering and Technology,Hainan University,Haikou 570228,China;School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry;Jilin Provincial International Joint Research Center of Photo-functional Materials and Chemistry,Changchun 130022,China;State Key Laboratory of Supramole
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Abstract
The composite polymer electrolyte has been obtained via incorporating LiCUST-701(a new metal-organic rotaxane framework modified by Li+)into poly(ethylene oxide)(PEO)matrix and give a high ionic con-ductivity of 4.02 × 10-4 S/cm at 60 ℃.DFT calculations were used to visualize the possible diffusion path-way of Li+.The all-solid-state cell assembled with LiFePO4,composite polymer electrolyte and lithium metal foil delivered with excellent cycling capability and stability even under high current densities.
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