Energy storage devices
US7479353B2 · kind B2 · utility
17Cited by
4References
40Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 3, 2004 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Apr 20, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Pyrrolidinium-based room temperature ionic liquids, and phosphorus and arsenic analogues, are used as electrolytes in energy storage devices including secondary lithium batteries, supercapacitors and asymmetric battery-supercapacitors. The electrolytes preferably contain lithium ions as the charge-carrying species. The electrolytes are in a liquid state at the operating temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.