Gel polymer electrolyte composition, gel polymer electrolyte and electrochemical device comprising the same
US9837685B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 17, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gel polymer electrolyte composition includes i) a compound acting as a monomer for forming gel polymer by polymerization and having at least two double bonds at an end thereof; ii) an electrolyte solvent containing carbonate and linear saturated ester; iii) an electrolyte salt; and iv) a polymerization initiator. A gel polymer electrolyte formed using the above composition has excellent mechanical strength and lithium ion conductivity. A secondary battery containing the gel polymer electrolyte has improved room/low temperature characteristics and rate capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.