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PubMed Publications| Keyword search (4,163 papers available) |  |
"inert diluter" Keyword-tagged Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | Flame-Retardant and Polysulfide-Suppressed Ether-Based Electrolytes for High-Temperature Li-S Batteries | He M; Li X; Holmes NG; Li R; Wang J; Yin G; Zuo P; Sun X; | 34370436 ENCS |
| Title: | Flame-Retardant and Polysulfide-Suppressed Ether-Based Electrolytes for High-Temperature Li-S Batteries | ||||
| Authors: | He M, Li X, Holmes NG, Li R, Wang J, Yin G, Zuo P, Sun X | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/34370436/ | ||||
| DOI: | 10.1021/acsami.1c09492 | ||||
| Publication: | ACS applied materials & interfaces | ||||
| Keywords: | Li-S batteries; ether-based electrolyte; high temperature; inert diluter; nonflammable; | ||||
| PMID: | 34370436 | Category: | Date Added: | 2021-08-09 | |
| Dept Affiliation: |
ENCS
1 MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China. 2 Department of Mechanical and Materials Engineering, Western University, London, Ontario N6A 5B9, Canada. 3 Department of Chemical and Materials Engineering, Concordia University, Montreal, Quebec H4B 1R6, Canada. |
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Description: |
Lithium-sulfur (Li-S) batteries are drawing huge attention as attractive chemical power sources. However, traditional ether-based solvents (DME/DOL) suffer from safety issues at high temperatures and serious parasitic reactions occur between the Li metal anodes and soluble lithium polysulfides (LiPSs). Herein, we propose a polysulfide-suppressed and flame-retardant electrolyte operated at high temperatures by introducing an inert diluent 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl (TTE) into the high-concentration electrolyte (HCE). Li dendrites are also efficiently suppressed by the formed LiF-rich protective layer. Furthermore, the shuttle effect is mitigated by the decreased solubility of LiPSs. At 60 °C, Li-S batteries using this nonflammable ether-based electrolyte exhibit a high capacity of 666 mAh g-1 over 100 cycles at a current rate of 0.2C, showing the greatly improved high-temperature performance compared to batteries with traditional ether-based electrolytes. The improved electrochemical performance across a range of temperatures and the enhanced safety suggest that the electrolyte has a great practical prospect for safe Li-S batteries. |
