Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 10, Issue 4, Pages 900-904Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ee00035a
Keywords
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Funding
- Advanced Battery Materials Research (BMR) for Transportation Program
- Vehicle Technologies Program
- Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy
- U.S. Department of Energy [DE-AC02-06CH11357]
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New fluorinated sulfones were synthesized and evaluated in high voltage lithium-ion batteries using a LiNi0.5Mn0.3Co0.2O2 (NMC532) cathode. Fluorinated sulfones with an alpha-trifluoromethyl group exhibit enhanced oxidation stability, reduced viscosity and superior separator wettability as compared to their non-fluorinated counterparts. Their improved performance in high voltage NMC532/graphite cells makes them promising high voltage electrolytes for next generation high voltage high energy lithium-ion batteries.
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