Salts for multivalent ion batteries
US10020538B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Nov 13, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods for preparing electrolyte salts for alkaline earth metal-ion batteries (e.g., calcium and magnesium ion batteries) are described. The electrolyte salts comprise alkaline earth metal (e.g., Mg or Ca) salts of bis(fluorosulfonyl)imide (FSI) and 3,4-dicyano-2-trifluoromethylimidazole (TDI). The methods comprise contacting FSI or TDI with an alkaline earth metal bis(trifluoroacetate) salt in trifluoroacetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.