| 摘要 |
1,224,922. Improved electrode performance in fused electrolyte fuel cells. BOLT BERANEK & NEWMAN Inc. 11 June, 1968 [9 Oct., 1967], No. 27754/68. Heading HlB. In a fuel cell using a fused electrolyte (i.e. of alkali metal hydroxide) in which peroxide or superoxide is produced by agitation and supply of oxygen to the electrolyte near the cathode, and a hydrogen-permeable but otherwise impermeable anode layer (i.e. of palladium), the current and power density is increased by treating the anode so as to increase the surface area thereof in contact with the fuel and/or electrolyte, and modifying the cathode or operating the cell so as to increase the rate of cathode reaction. In examples, in a cell using a 90/10 fused KOH/ NaOH electrolyte and a palladium anode and a nickel cathode (of four times the anode area), the anode effective surface area is increased by depositing palladium black on the hydrogen surface, or by flaming that surface in air or oxidizing the anode in an air furnace before use, the oxidized surface being reduced in use, and the cathode activity is increased by addition of manganese dioxide to the electrolyte.
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