Electrode body, electrolytic capacitor provided with electrode body, and method for producing electrode body
US11756740B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Mar 15, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an electrode body that exhibits a good cathode side capacitance, and an electrolytic capacitor provided with this electrode body. The electrode body used for a cathode of the electrolytic capacitor has a cathode foil and a carbon layer. The cathode foil is made of a valve acting metal, and an enlarged surface layer is formed on the surface thereof. The carbon layer is formed on the enlarged surface layer. The interface between the enlarged surface layer and the carbon layer has an uneven shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.