Electrolyte composition for sodium-ion battery
US12021192B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jun 18, 2019 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | May 13, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolyte composition includes at least a sodium salt dissolved in at least one solvent and a combination of additives. The solvent is any of ethylene carbonate, dimethyl carbonate, ethyl methyl carbonate, diethyl carbonate, propylene carbonate, ethyl acetate, ethyl propionate, methyl propionate, 4-fluorotoluene, 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether, di-fluoro ethylene carbonate, ethyl difluoroacetate, or mixtures of the foregoing. The combination of additives includes at least sodium difluoro(oxalato)borate (NaODFB) and tris(trimethylsilyl)phosphite (TMSPi).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.