Electric double-layer capacitor
US5706165A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1994 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Nov 18, 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 including, as the positive electrode and the negative electrode, a material obtained by adhering a polarizable electrode on one or both sides of a conductive material by the use of a conductive adhesive, in which capacitor the polarizable electrodes are formed by a carbon material composed mainly of active carbon, amorphous carbon and expanded graphite, or the conductive adhesive is composed mainly of a resin and expanded graphite, or the polarizable electrodes are formed by a carbon material composed mainly of active carbon, amorphous carbon and expanded graphite and the conductive adhesive is composed mainly of a resin and expanded graphite. The electric double-layer capacitor has alleviated the drawbacks of the prior art, has a low internal resistance, gives substantially no change in internal resistance when subjected to repeated discharging, and has a long life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.