Solid electrolytic capacitor and manufacturing method thereof
US10210997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2017 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G2009/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a solid electrolytic capacitor having a lower leakage current than a conventional solid electrolytic capacitor. The solid electrolytic capacitor includes: an anode foil having a surface on which an oxide film is formed; a cathode foil; and a separator disposed between the anode foil and the cathode foil, wherein a solid electrolyte made of a conductive high-molecular weight compound in a fine particle form and a water-soluble high-molecular weight compound solution which is formed of a water-soluble high-molecular weight compound in a liquid form, water and alcohol having a nitro group are introduced into a gap formed between the anode foil and the cathode foil in a state where the water-soluble high-molecular weight compound solution surrounds the solid electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.