Patent ID: 6403246
Filing Date: 2002-06-11
Classification: H01M,Y02E,Y10T

Abstract:
A fuel cell comprising:a plurality of unit cells arranged at a distance from one another along the direction of thickness, each unit cell being made up of a positive electrode and a negative electrode constituting a pair of electrodes, and an electrolyte film sandwiched between said positive and negative electrodes; and a plurality of separators, each arranged between neighboring ones of said unit cells for separating a negative electrode chamber facing said negative electrode and a positive electrode chamber facing said positive electrode, said negative electrode chamber and the positive electrode chamber being fed with an active material for the negative electrode and with an active material for the positive electrode, respectively; wherein said separator has an aluminum-based substrate, at least one intermediate plating layer layered on the aluminum-based substrate and a noble metal layer layered on the intermediate plating layer, said intermediate plating layer comprising at least one of zinc, copper and tin.