Electrolytic capacitor and method for producing same
US12424390B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 4, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | May 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolytic capacitor includes an anode body, a dielectric layer that covers the anode body, a first solid electrolyte layer that covers the dielectric layer, and a second solid electrolyte layer that covers the first solid electrolyte layer. The first solid electrolyte layer contains a first conductive polymer that includes polypyrrole as a basic skeleton. The second solid electrolyte layer contains a second conductive polymer that includes polythiophene as a basic skeleton. The second solid electrolyte layer has a thickness of 1 μm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.