Invention Application
US20100047652A1 DIRECT METHANOL FUEL CELL AND CATHODE FOR DIRECT METHANOL FUEL CELL 审中-公开
直接甲醇燃料电池和直接甲醇燃料电池的阴极

DIRECT METHANOL FUEL CELL AND CATHODE FOR DIRECT METHANOL FUEL CELL
Abstract:
A cathode for a direct methanol fuel cell is provided. The cathode comprises a cathode catalyst layer includes a first carbon powder supporting a noble metal catalyst, a proton conductive polyelectrolyte at least partially covering a surface of the first carbon powder, and a second carbon powder having a water repellent material on a surface thereof. The cathode catalyst layer is accompanied with a porous structure satisfying following conditions. 40%≦(V1/V0)≦70% wherein V0 represents a volume of pores having a diameter ranging from 3 nm to 10 μm, and V1 represents a volume of pores having a diameter ranging from 50 nm to 10 μm.
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