Patent ID: 6960406

Claim:
In a fuel cell, an electrode comprising: a fluorinated carbon based gas diffusion layer having a built in hydrophobicity; and an active material layer adjacent to said gas diffusion layer wherein said active material layer comprises a carbon matrix including a redox couple selected from the group consisting of a Co +2 —Co +3 couple, a Co +2 —Co +4 couple, a Ni +2 —Ni +3 couple, a Ni +2 —Ni +4 couple, a Ag—Ag + couple, a Ag—Ag +2 couple, a Cu—Cu +2 couple, a (Ni/Ag) +2 —(Ni/Ag) couple, a (Ni/Fe) oxide +2 —(Ni/Fe) oxide +3 couple, a Mn +2 —Mn +3 —Mn +7 couple, a Sn +2 —Sn couple, and combinations thereof.