Separator filled with electrolyte
US7867290B2 · kind B2 · utility
74Cited by
28References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2009 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Mar 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods are provided to suitably impregnate low surface energy separator materials with polar electrolyte in an electrolytic capacitor. Backfilling methods overcome the high contact angles exhibited by polar electrolytes on porous hydrophobic separators, forcing the electrolyte into the separator pores, thereby sufficiently impregnating the separator disposed between two electrodes within the capacitor assembly. Methods enable use of separators sans surfactant or surface modifications to improve wetting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.