Electric double layer capacitor
US7924548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Feb 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric double layer capacitor includes a positive electrode, a negative electrode which faces the positive electrode and is isolated therefrom, and an electrolyte solution. The positive electrode includes a first current collector of a metal foil and a first polarizable electrode layer on the first current collector, the first polarizable electrode layer containing a phosphorus compound. The negative electrode includes a second current collector of a metal foil and a second polarizable electrode layer on the second current collector. The electrolyte solution, with which the first and second polarizable electrode layers are impregnated, has fluorine-containing anions as an electrolyte solute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.