Electrolytic solution for electric double layer capacitor and electric double layer capacitor
US7656645B2 · kind B2 · utility
9Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2004 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Aug 8, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolytic solution for an electric double layer capacitor comprising a quaternary ammonium salt in a mixed solvent containing ethylene carbonate and propylene carbonate as an electrolyte. The electrolytic solution for electric double layer capacitor has a low coefficient of viscosity, has an excellent low temperature characteristics of not coagulating at a low temperature, possesses high electrical conductivity over a wide temperature range, and has a long-term reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.