A high performance lithium–sulfur battery enabled by a fish-scale porous carbon/sulfur composite and symmetric fluorinated diethoxyethane electrolyte. Issue 14 (23rd March 2017)

• Record Type: Journal Article
• Authors: Gao, Mengyao; Su, ChiCheung; He, Meinan; Glossmann, Tobias; Hintennach, Andreas; Feng, Zhenxing; Huang, Yaqin; Zhang, Zhengcheng
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 14(2017)
• Page Start: 6725
• Page End: 6733
• Publication Date: 2017-03-23
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7ta01057e
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A high performance lithium–sulfur (Li–S) battery comprising a symmetric fluorinated diethoxyethane electrolyte coupled with a fish-scale porous carbon/S composite electrode was demonstrated. Abstract : A high performance lithium–sulfur (Li–S) battery comprising a symmetric fluorinated diethoxyethane electrolyte coupled with a fish-scale porous carbon/S composite electrode was demonstrated. 1, 2-Bis(1, 1, 2, 2-tetrafluoroethoxy)ethane (TFEE) was first studied as a new electrolyte solvent for Li–S chemistry. When co-mixed with 1, 3-dioxolane (DOL), the DOL/TFEE electrolyte suppressed the polysulfide dissolution and shuttling reaction. When coupled with a fish-scale porous carbon/S composite electrode, the Li–S cell exhibited a significantly high capacity retention of 99.5% per cycle for 100 cycles, which is far superior to the reported numerous systems.