Patent ID: 7354545
Filing Date: 2008-04-08
Classification: H01M,Y02E,Y02P

Abstract:
1. A method for fabricating a microfibrous fuel cell structure, said method comprising at least the steps of: (a) providing a fibrous substrate structure comprising at least one removable substrate material in solid phase; (b) coating a layer of membrane-forming material over said fibrous substrate structure; and (c) subsequently removing said at least one removable substrate material, so as to form a hollow fibrous membrane separator having a bore side and a shell side, wherein said microfibrous fuel cell structure comprises (1) an inner current collector, (2) an outer current collector, (3) the hollow fibrous membrane separator, wherein said hollow fibrous membrane separator comprises an electrolyte medium and is in electrical contact with the inner current collector at its bore side and the outer current collector at its shell side, and wherein the bore side of said hollow fibrous membrane separator further comprises a lumen allowing passage of fluid therethrough, (4) an inner electrocatalyst layer coating on said hollow fibrous membrane separator at its bore side, and (5) an outer electrocatalyst layer coating on said hollow fibrous membrane separator at its shell side.