Solid electrolytic capacitor element and solid electrolytic capacitor
US12354811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2021 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jan 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid electrolytic capacitor element includes an anode body, a dielectric layer disposed on a surface of the anode body, and a cathode part covering at least a part of the dielectric layer are provided. The cathode part includes a solid electrolyte layer covering the at least the part of the dielectric layer. The solid electrolyte layer contains a first polymer and a second polymer component. The first polymer component includes a monomer unit corresponding to a thiophene compound. The second polymer component includes a polymer anion. A Raman spectrum of a surface layer in the solid electrolyte layer has a peak characteristic for the first polymer component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.