Polarizing electrode for electric double layer capacitor and electric double layer capacitor therewith
US7061750B2 · kind B2 · utility
11Cited by
6References
10Claims
0Family size
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Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Nov 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polarizing electrode for an electric double layer capacitor has good moldability and can achieving higher density of electrode and higher capacity, and an electric double layer capacitor employs the same. The electric double layer capacitor is made of an activated carbon obtained by activating a hard-to-graphitize material (for example, phenol resin) with water vapor, and the activated carbon has a median particle size within a range from 4 μm to 8 μm in the particle size distribution and at least a peak observed on the side of smaller particle size than the median particle size in the particle size distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.