Electrolytic capacitor and method for manufacturing same
US11823845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Feb 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/0525
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolytic capacitor including a capacitor element that includes an anode body being porous, a dielectric layer formed on the surface of the anode body, and a solid electrolyte layer covering at least part of the dielectric layer. The anode body has a plurality of principal surfaces and a corner portion. The corner portion includes a plurality of side portions connecting between the principal surfaces, and one or more vertex portions connecting between the principal surfaces. A surface layer X of at least part of the corner portion is more compact in texture than a surface layer Y of the principal surface adjacent to the surface layer X.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.