| 摘要 |
<p>A method and apparatus for water management in a direct oxidation fuel cell (15), including: a housing (23) surrounding an anode (27), a cathode (28), a protonically conductive electronically non-conductive membrane electrolyte (25) disposed between the anode and the cathode, a current collector (33), and a gas-permeable, liquid-impermeable membrane (35) disposed on a side of the cathode opposite the electrolyte. Excess water accumulation is removed from an area between the electrolyte membrane and the gas-permeable liquid-impermeable membrane by a pressure differential generated, preferably, by a pump (37). The pressure differential draws air to the surface of, into, or through the cathode diffusion layer. The pump can be driven by the electricity generated by the fuel cell.</p> |
