Polymer electrolyte for lithium secondary battery and lithium secondary battery including the same
US12148891B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Dec 28, 2023 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Dec 28, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer electrolyte for a lithium secondary battery that may include: a fluorine-based solvent; a lithium salt; and a flame retardant polymer containing phosphorus and fluorine, wherein the polymer electrolyte has a fluorine content of 35 to 60% by weight and a phosphorus content of 2.3 to 7.5% by weight. Lithium secondary batteries containing the polymer electrolyte exhibit improved flame retardancy and ionic conductivity as well as enhanced high-voltage stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.