Electrolytic capacitor, its anode body, and method of producing the same
US6400554B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jun 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides an electrolytic capacitor and its anode body using a laminate of plurality of sheets of valve metal foil, exhibiting excellent high-frequency response and lower inner impedance as a electrolytic capacitor. The anode body for a electrolytic capacitor includes; a laminate of plurality of rectangular anode valve metal foil each which has dielectric layers of its metal oxide film anodized on roughened surfaces of each anode valve metal foil; and a fixing frame to clamp the laminate in the laminating direction to fix the laminate and connect electrically with anode layers of the laminated foil. Such an anode body may be used to be filled in the liquid electrolyte in the container to make a capacitor. Further, an electrolytic capacitor of the present invention includes: a laminate of plurality of anode valve metal foil each which has dielectric layers of its metal oxide film anodized on roughened surfaces of each anode valve metal foil and a cathode conductive polymer layer formed on the dielectric layer; a fixing frame to clamp the laminate in the laminating direction to fix the laminate; an anode conductor which is connected to a metal portion of the anod…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.