| 摘要 |
<p>A direct antifreeze cooled fuel cell is disclosed for producing electrical energy from reducing and process oxidant fluid streams. The fuel cell includes an electrolyte (52) secured between an anode catalyst (54) and a cathode catalyst (56); a porous anode substrate (58) secured in direct fluid communication with and supporting the anode catalyst; a porous wetproofed cathode substrate (62) secured in direct fluid communication with and supporting the cathode catalyst; a porous water transport plate (64) secured in direct fluid communication with the cathode substrate; and a direct antifreeze solution passing through the porous water transport plate. In operation of the fuel cell, because product water generated electrochemically at the cathode catalyst flows away from the catalyst into the cathode substrate and into the water transport plate, and because the cathode substrate is wetproofed, antifreeze solution passing through the water transport plate remains essentially within the water transport plate. A preferred direct antifreeze solution is glycerol.</p> |
