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US 12,381,258 B2Granted
Fluorinated electrolyte additives
AssigneeE3Trigen, Inc.
InventorsNicholas Borrero, Neville Pavri, Serguei Kovalenko
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Abstract
The disclosure relates to the use of fluorinated ethers such as 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFMOP) as a reaction solvent to prepare fluorinated dialkyl carbonate and sulfite compounds useful in batteries, and to electrolytes containing fluorinated compounds for use in batteries containing high Ni cathodes and silicon containing anodes.
Claims20
A battery comprising an electrolyte comprising a solvent component, wherein the solvent component comprises a fluorinated compound in an amount between about 1 ppm and about 60 wt. %, wherein the fluorinated compound has Formula III:
- wherein R10 and R20 are independently selected from C1-C6 alkyl, C1-C8 alkyl, cycloalkyl, aryl, fully or partially fluorinated C1-C6 alkyl, fully or partially fluorinated C1-C8 alkyl, fully or partially fluorinated cycloalkyl, and fully or partially fluorinated aryl, and
- wherein the fluorinated compound comprises two or more —CF3 groups.
Dependencies are inferred from the claim text.