Additives for high voltage lithium ion batteries
US11757131B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 12, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to an electrolyte composition for a lithium ion battery comprising a lithium salt in a non-aqueous solvent containing an additive comprising a compound of formula R3SiOP(O)nF2; wherein each R independently is a hydrocarbyl group; and n is 0 or 1; and wherein the additive is substantially free from (R3SiO)3P(O)n and (R3SiO)2P(O)nF. Electrochemical cells and batteries also are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.