Electrolytic capacitors comprising means in the form of a multilayer polymeric sheet for the sorption of harmful substances
US7663865B2 · kind B2 · utility
3Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Mar 13, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrolytic capacitors are provided having an airtight housing, electrodes immersed in an electrolytic solution, electrical contacts connected to the electrodes, and a device for sorption of harmful substances. The device is made of a multilayer polymeric sheet (10), which is formed of an inner layer (12) of polymeric material, containing particles of one or more getter materials (11) for sorption of the harmful substances, and at least one protective layer (13) of a polymeric material impermeable to the electrolyte. All of the polymeric materials are permeable to the harmful substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.