Lithium battery including storage stabilized dioxolane-containing electrolyte
US6255021A · kind A · utility
10Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nonaqueous electrolyte battery having improved storage stability is disclosed. The battery includes a positive electrode; s negative electrode in which the active material is lithium or a compound capable of absorbing and desorbing lithium; and a nonaqueous electrolyte containing an organic solvent, at least 10 wt % of which is dioxolane, a solute and a storage stabilizing additive which is an oxygen acid ester, isoxazole, oxazole or oxazoline or a derivative thereof. The additive reduces the self-discharge rate of the battery during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.