Electric double layer capacitor
US5453909A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
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 pair of opposing polarized electrodes, a separator, a pair of external electrodes, and an insulating molding case. The pair of opposing polarized electrodes consist of activated carbon. The separator has characteristics which allow the separator to transmit ions but not to transmit electrons, and isolates the polarized electrodes from each other. The separator has an uneven shape for increasing a surface area of the separator. Each of the pair of external electrodes has one terminal electrically connected to a corresponding one of the polarized electrodes. The insulating molding case externally extracts the other terminal of each of the external electrodes to accommodate the polarized electrodes together with an electrolytic solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.