Polarizable electrode for electric double-layer capacitor, and electric double-layer capacitor using said polarizable electrode
US5786555A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1996 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Aug 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides: PA1 a polarizable electrode for use in electric double-layer capacitor, which is made of a carbon composite material composed mainly of: PA1 100 parts by weight of an activated carbon, PA1 0.05 parts by weight of an amorphous carbon, PA1 0.1-1,000 parts by weight of a conductive agent, and PA1 0.03-90 parts by weight of a fibrillated carbon; and PA1 an electric double-layer capacitor comprising at least one pair of a positive electrode and a negative electrode each containing the above polarizable electrode and each impregnated with an electrolytic solution. The above polarizable electrode and electric double-layer capacitor are substantially free from the drawbacks of conventional polarizable electrodes and conventional electric double-layer capacitors, have a low internal resistance and a long life, and can be charged with or can discharge a large electric current of several amperes to several hundreds of amperes momentarily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.