Electrolytic capacitor for at least 150 V service
US4509094A · kind A · utility
9Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1984 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Feb 21, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aluminum electrolytic capacitor capable of operation at 150 VDC or higher and 105.degree. C. contains as its electrolyte a diisopropylamine or a triethylamine mono salt of azelaic acid dissolved in a solvent mixture of ethylene glycol, ethylene glycol and N-methylpyrrolidinone, ethylene glycol N-methylpyrrolidinone and dimethylformamide, butyrolactone, or butyrolactone and N-methylpyrrolidinone, all containing small amounts of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.