Electrolyte solution, electrochemical device, lithium battery, and module
US9923240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Sep 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a lithium cell exhibiting a high remaining capacity after high-temperature storage even if used at high voltages, and an electrolytic solution used for the cell. The present invention relates to an electrolytic solution containing a nonaqueous solvent; an electrolyte salt; and 10 vol % or more of a compound represented by the following formula (1) based on 100 vol % of the nonaqueous solvent,wherein R1, R2 and R3 may be the same as or different from one another, each representing a hydrogen atom, a fluorine atom, a C1-C20 alkyl group, or a C1-C20 fluorinated alkyl group, excluding cases where all of R1, R2, and R3 are hydrogen atoms or fluorine atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.