Electrode for electrochemical capacitor and electrochemical capacitor using same
US8988858B2 · kind B2 · utility
2Cited by
2References
6Claims
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Key dates
| Filing date | Oct 14, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | May 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode for an electrochemical capacitor includes a current collector having electric conductivity, and an electrode layer formed on a surface of the current collector and having cations stored therein. In at least a part of the electrode layer, a value of ratio Ia/Ib of peak value Ia indicating a presence of an anion decomposition compound and peak value Ib indicating a presence of an electrolyte in a spectrum of an atom forming the anion is 0.45 or more and less than 2.55 as measured using X-ray photoelectron spectroscopy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.