Lithium salts of fluorinated borate esters for lithium-ion batteries
US8394539B2 · kind B2 · utility
7Cited by
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13Claims
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Key dates
| Filing date | Jun 21, 2012 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jun 21, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lithium salts with fluorinated chelated orthoborate anions are prepared and used as electrolytes or electrolyte additives in lithium-ion batteries. The lithium salts have two chelate rings formed by the coordination of two bidentate ligands to a single boron atom. In addition, each chelate ring has two oxygen atoms bonded to one boron atom, methylene groups bonded to the two oxygen atoms, and one or more fluorinated carbon atoms bonded to and forming a cyclic bridge between the methylene groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.