Journal
CHEMICAL ENGINEERING JOURNAL
Volume 358, Issue -, Pages 1047-1053Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.10.092
Keywords
Gel polymer electrolyte; Electrochemical property; Mechanical property; Lithium-sulfur battery; Lithium polysulfide
Categories
Funding
- Program for Innovative Research Team in University of Ministry of Education of China [IRT13037]
- Qianjiang Talents Plan D [QJD1602029]
- Startup Foundation for Hundred-Talent Program of Zhejiang University
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A UV-light polymerized three-dimensional (3D) network gel polymer electrolyte (GPE) is designed and fabricated for solid-state lithium-sulfur (Li-S) batteries. The GPE exhibits wide electrochemical window up to 5.05 V (vs. Li+/Li), outstanding thermostability and mechanical property. Besides, the GPE effectively suppresses the extension of lithium dendrite and the electron-donating groups in GPE inhibit the shuttle of lithium polysulfides. The assembled solid-state Li-S batteries with the 3D network GPE show high specific capacity retention of 69.1% after 300 cycles at 0.5 C. With the consideration of these, the GPE in this report undoubtedly provides an effective technique to design high performance solid-state Li-S batteries.
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