Patent ID: 6620542
Filing Date: 2003-09-16
Classification: H01M,Y02E

Abstract:
A flex circuit for use in a fuel cell, the flex circuit, comprising:a fuel-side flexible circuit, comprising: a first flex substrate, wherein the first flex substrate comprises openings through which pass liquid fuel, a first porous layer adjacent the first flex substrate, the first porous layer including a first catalyst layer, an anode electrode between the first flex substrate and the first porous layer, and a boundary layer disposed adjacent the first porous layer, the boundary layer preventing cross-over of the liquid fuel; an air/water-side flexible circuit, disposed in parallel with the fuel-side flexible circuit, comprising: a second flex substrate, wherein the second flex substrate comprises openings through which pass water, a second porous layer adjacent the second flex substrate, the second porous layer including a second catalyst layer, and a cathode electrode between the second flex substrate and the second porous layer; and a center section disposed between the first and the second flex circuits, wherein the first and the second flex substrates are conformable to non-planar shapes.