Polyfluorinated carbonate electrolyte for high-voltage lithium batteries
US11127979B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Oct 27, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-aqueous solvent composition for a lithium battery comprises a fluorinated solvent mixture that consists essentially of a 1,2-difluoroethylene carbonate and a fluoro-substituted dialkyl carbonate in a respective weight ratio of about 1:3 to about 1:1, and optionally up to about 30 wt % of an additional organic solvent. An electrolyte for a lithium ion battery comprises a lithium salt dissolved in a non-aqueous solvent composition comprising the fluorinated solvent mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.