Electrolyte for lithium secondary batteries and lithium secondary battery comprising the same
US7247404B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
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Key dates
| Filing date | Sep 11, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | May 31, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolyte in a lithium secondary battery includes an alkyl ammonium salt having a cation of the following Formula 1, a lithium salt, and an organic solvent:wherein R1 to R4 are independently a C1 to C6 alkyl, a C2 to C6 alkenyl, or substituents thereof. The lithium secondary battery has improved cycle life, high rate characteristics, and a high energy density due to an increase of the average discharge voltage at a high rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.