| abstract |
The invention relates to a fuel cell (1) comprising: a proton-exchange membrane (120); and an anode (122) and a cathode (124), the cathode (124) defining a flow channel between a dioxygen inflow area (162) and a water outflow area (164). The cathode (124) comprises a support for the catalyst material including a first material (Z6) containing graphite and a second material (Z5), said second material having a resistance to corrosion by oxygen that is higher than the resistance of the material containing graphite, the quantity of said second material at the inflow area being higher than the quantity of said second material at the outlet. The cathode comprises a first layer (Z6) including the first material and a second layer including the second material, the thickness of the second layer (Z5) decreasing between the inflow area (162) and the outflow area (164). |