Hydrazine-Hydrogen Peroxide Fuel Cell by Liquid Flow-Through Electrode

Abstract

Anodic reaction of hydrazine and cathodic reaction of hydrogen peroxide have been studied in alkaline solution by liquid flow-through electrodes. Ateven a considerable low concentration of the reactants, good polarization characteristics were obtained, and their polarization characteristics can be easily controlled by the variation of flow-through rate and of their concentrations.
Discharge characteristics of a single N2H4-H202 fuel cell (porous nickel electrode 0.6 mm, thick, 5X5 cm2, Pt-Pd mixed catalyst) was improved by the quick removal of N2 and H2, or 02 gas yielded at the electrodes. In connection with this problem, dependence of the discharge characteristics on a uniformity of electrolyte flow in the electrodes and on the distance between the electrodes were examined. Abattery in which three single cells were connected in parallel was made to obtain the maximum power of 7 W at 0.5 V (93 mWIcm2, 187 mA/cm2).