Solid electrolytic capacitor element and solid electrolytic capacitor
US12283434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Sep 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/0425
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid electrolytic capacitor element includes an anode body, a dielectric layer formed at the surface of the anode body, and a cathode portion that covers at least a part of the dielectric layer. The cathode portion includes a solid electrolyte layer that covers at least a part of the dielectric layer. The solid electrolyte included in the solid electrolyte layer has a weight reduction ratio of 3% or less when measured through thermogravimetric analysis in which the solid electrolyte is heated to 180° C., is kept at 180° C. for 20 minutes, is cooled from 180° C. to 30° C., and is then heated from 30° C. to 260° C. at a rate of 20° C./min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.