Electrolytic solution for capacitor and capacitor
US6185089A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Sep 11, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Non-aqueous electrolytic solutions for capacitor which release little gas and have excellent potential window of electrochemical stability, and which enable capacitors to have excellent charging/discharging cycle properties and safety performance, and capacitors containing such non-aqueous electrolytic solutions. Such non-aqueous electrolytic solutions for capacitors include an electrolyte selected from the group consisting of ammonium salts, phosphonium salts and amidine salts and a solvent for containing at least one phosphoric ester represented by the following formula (I): ##STR1## wherein, R.sup.1, R.sup.2 and R.sup.3, which may be the same or different, are an alkyl group, an unsaturated hydrocarbon group or an aryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.