Journal
CHEMICAL COMMUNICATIONS
Volume 54, Issue 35, Pages 4453-4456Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc00994e
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Funding
- National Science Foundation of China [21676067, 51372060]
- Fundamental Research Funds for the Central Universities [JZ2017YYPY0253]
- Opening Project of CAS Key Laboratory of Materials for Energy Conversion [KF2016005]
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We prepare a totally nonflammable phosphate-based electrolyte composed of 5 mol L-1 (M) Li bis(fluorosulfonyl) imide (LiFSI) in a trimethyl phosphate (TMP) solvent. The concentrated 5 M LiFSI/TMP electrolyte shows good compatibility with graphite and no Al corrosion. More attractively, such a concentrated electrolyte can effectively suppress the growth of Li dendrites in Li metal batteries because of a stable LiF-rich SEI layer. Therefore, this highly concentrated electrolyte is promising for safe Li batteries.
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