Electric double-layer capacitor with a negative electrode containing a carbon material and a titanium oxide
US7974073B2 · kind B2 · utility
2Cited by
9References
8Claims
0Family size
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Key dates
| Filing date | Oct 9, 2007 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Oct 9, 2027 |
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 containing a carbon material; a negative electrode containing a carbon material and a titanium oxide; and an electrolytic solution containing an ammonium salt. A weight ratio of the titanium oxide to the carbon material contained in the negative electrode is 2% by weight or more but not more than 50% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.