Electrolytic capacitor and separator papers therefor
US6721169B2 · kind B2 · utility
18Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Separator paper comprising paper impregnated with soluble silicate. The soluble silicate may be applied to the separator paper by immersing the paper into an aqueous solution of the soluble silicate or by spraying with an aqueous solution of the soluble silicate. In a preferred embodiment, the soluble silicate is sodium silicate. An electrolytic capacitor comprising an electrolytic solution, at least one anode foil, at least one cathode foil, and separator paper between the at least one anode foil and at least one cathode foil, wherein the separator paper comprises paper impregnated with a soluble silicate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.