US Patent:
20030194599, Oct 16, 2003
Inventors:
Robert Sassa - Newark DE, US
David Zuckerbrod - Baltimore MD, US
Wolfgang Buerger - Hockessin DE, US
John Bacino - Newark DE, US
International Classification:
H01M004/86
H01M004/88
H01M002/16
H01M012/06
US Classification:
429/042000, 029/623100, 502/101000
Abstract:
Composite film articles and assemblies that include at least one layer of expanded fluoropolymer bonded to at least one thermoplastic sheet are fabricated using a method which can adjust the gas and liquid permeability of the composite film assemblies. These composite film articles and assemblies optionally have electroactive properties and a thin porous metallic overlayer that can serve as a current collector, and can be used in electrochemical devices such as air depolarized cells.