Electrolyte for lithium secondary battery and lithium secondary battery including the same
US9590266B2 · kind B2 · utility
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3References
23Claims
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Key dates
| Filing date | Jul 11, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Jan 21, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a polar additive based on a substituted hetero-bicyclic compound. Oxidation of the electrolyte is prevented by formation of a polar thin film on a surface portion of the positive electrode, which facilitates transfer of lithium ions. The lithium secondary batteries using the electrolyte have excellent high temperature life characteristics and high temperature conservation characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.