Patent ID: 6383556
Filing Date: 2002-05-07
Classification: H01M,Y02E,Y10S

Abstract:
A method for forming a membrane electrode diffusion assembly for use in an ion exchange membrane fuel cell, comprising:providing an ion conducting electrolyte membrane having opposite sides; providing anode and cathode electrodes individually disposed on the opposite sides of the ion conducting electrolyte membrane; and applying a first diffusion layer to one of the opposite sides of the ion conducting electrolyte membrane by the application of force sufficient to fabricate a resulting membrane electrode diffusion assembly which has an optimal operational temperature range when utilized in an ion exchange membrane fuel cell of less than about 95 degrees C., and wherein the first diffusion layer is applied to the side of the ion conducting electrolyte membrane bearing the anode electrode with a force of at least about 400 pounds to about 10,000 pounds per square inch.