Nonaqueous electrolyte secondary battery
US6913856B2 · kind B2 · utility
5Cited by
2References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Apr 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nonaqueous electrolyte secondary battery includes a positive electrode having a positive electrode active material, a negative electrode containing a negative electrode active material capable of being doped/undoped with lithium, and a nonaqueous electrolyte. The nonaqueous electrolyte contains at least one of thiols, thiophenes, thioanisoles, thiazoles, thioacetates, aromatic sulfones, and the derivatives thereof. The capacity of the battery is not significantly degraded after cycling and its cycle life is significantly long.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.