Patent ID: 7807310
Filing Date: 2010-10-05
Classification: H01M,Y02E

Abstract:
1. An air breathing fuel cell stack comprising: a membrane electrode assembly comprising anode electrodes, cathode electrodes that are each disposed to face a corresponding one of the anode electrodes, and an electrolyte membrane positioned between the anode and cathode electrodes; an anode plate having an inner surface that faces the membrane electrode assembly, the anode plate comprising anode current collectors disposed on the inner surface, such that anode current collectors contact the anode electrodes; and two cathode plates, each having an inner surface that faces the membrane electrode assembly and an opposing outer surface, the cathode plate comprising cathode current collectors disposed on the inner surface, such that the cathode current collectors contact the cathode electrodes, wherein, at least one of the cathode current collectors extends through an opening defined in the electrolyte membrane and directly contacts one of the anode current collectors.