Solid electrolytic capacitor
US7095605B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 13, 2003 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Mar 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/151
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid electrolytic capacitor includes a capacitor element and an outer shell, made of an insulating resin, that covers the capacitor element. The capacitor element has a winding portion that is formed by rolling an anode foil with a dielectric oxidized film formed on its surface, a cathode foil, and a separator that is sandwiched between the anode foil and the cathode foil, and a conductive polymer layer is formed between the anode foil and the cathode foil. An anode lead wire electrically connected to the anode foil, and a cathode lead wire electrically connected to the cathode foil extend from the winding portion, penetrate the outer shell, and are respectively connected to an anode electrode terminal and a cathode electrode terminal that are arranged on a surface of the outer shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.