Patent ID: 6811905
Filing Date: 2004-11-02
Classification: H01M,Y02E

Abstract:
A fuel cell comprising:(a) a membrane electrode assembly, said membrane electrode assembly comprising (i) a proton exchange membrane, said proton exchange membrane having a front face and a rear face, (ii) an anode, said anode coupled to said front face of said proton exchange membrane, and (iii) a cathode, said cathode coupled to said rear face of said proton exchange membrane; (b) a vapor diffusion chamber, said vapor diffusion chamber being positioned in front of said anode; (c) a vapor transport member positioned in front of said vapor diffusion chamber, said vapor transport member being substantially impermeable to an organic fuel and water mixture in a liquid phase but being permeable to said organic fuel and water mixture in a vapor phase; and (d) means for electrically interconnecting said anode and said cathode through an external load.