Electrolyte for driving electrolytic capacitors and capacitor using the same
US5177673A · kind A · utility
8Cited by
7References
46Claims
0Family size
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Key dates
| Filing date | Apr 3, 1990 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Apr 3, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolyte for driving electrolytic capacitors and electrolytic capacitors using the electrolyte are described. The electrolyte comprises at least one quaternary ammonium salt of aliphatic saturated dicarboxylic acid having from 6 to 10 carbon atoms in total or a quaternary ammonium salt of glutaric acid, dissolved in a solvent comprised of an aliphatic polyol. When applied to an electrolytic capacitor, the electrolyte ensures improvements in loss characteristic and high temperature characteristics with time. Thus, the capacitor has a prolonged life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.