Non-aqueous electrolyte solution for secondary batteries, and lithium ion secondary battery
US9236636B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 27, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Apr 12, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-aqueous electrolyte solution for secondary batteries, comprising a lithium salt (total number of moles of lithium atoms: NLi) and a liquid composition, wherein the liquid composition comprises a specific fluorinated solvent (α) and a cyclic carboxylic acid ester compound (total number of moles: NA), and may contain a specific compound (β) (total number of moles: NB), the content of the fluorinated solvent (α) is from 40 to 80 mass %, NA/NLi is from 1.5 to 7.0, and (NA+NB)/NLi is from 3 to 7.0; and, a lithium ion secondary battery employing such a non-aqueous electrolyte solution for secondary batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.