Electrode foil for solid electrolytic capacitor, manufacturing method thereof, and solid electrolytic capacitor
US6243256A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Nov 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is an aluminum electrode foil used in a solid electrolytic capacitor, and provides an electrode foil for a solid electrolytic capacitor, a manufacturing method of this electrode foil, and a solid electrolytic capacitor using this electrode foil having an improved voltage resistance and heat resistance at the cut-end part without causing a reduction in the effective area of the electrode foil. According to the manufacturing method of the electrode foil for the solid electrolytic capacitor according to the present invention, a porous film 11 having a thickness within the range of from about 5 to about 100 times the thickness of the barrier film 3 is formed on the surface of an electrode foil 10, on the cut-end part 5 of this electrode foil 10. In addition, the present invention provides an electrode foil manufactured according to the above described manufacturing method and a solid electrolytic capacitor using this electrode foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.