Flat sealing of anode/separator assembly for use in capacitors
US7710713B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2007 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Mar 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An anode/separator assembly for a capacitor is described. The capacitor includes a pellet of anode active material having opposed first and second major faces extending to a surrounding side wall and a separator enveloping the pellet. The separator is formed of a first sheet of separator material including a first central region contiguous with the first major face wall of the anode pellet and a first perimeter region folded in contact with the surrounding side wall of the anode pellet, and a second sheet of separator material including a second central region contiguous with the second major face wall of the anode pellet and a second perimeter region overlapping a portion of the first perimeter region of the first separator sheet. The first and second sheets of separator material are then sealed to each other at a seam formed at the overlap between them using the anode pellet surrounding sidewall as a backing surface for a heat sealing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.