Cd|KOH|NiOOH

Zn|NH4CI|MnO2

Li|LiClO4|MnO2

Pb|H2SO4|PbO2

H2|KOH|O2

Influence of file active mass composition and discharging conditions on the electrochemical performance of the negative electrodes of nickel-cadmium storage batteriecadmium storage batteries

The paper studies the process of oxygen reduction on monolithic LaNi; and LaNi4.75Al0.25-based face electrodes in a 8 M KOH solution and on pressed metal-hydride electrodes based on the same intermetallides in the framework of hermetically-sealed nickel-metal-hydride battery mock-ups. The possibility of oxygen ionization with high rates on the working metal-hydride electrodes is shown. The high efficiency of this process is attributed to the formation of gas hydrogen-filled pores in the course of charging, which favours oxygen transfer to the pores of the electrode's active mass.

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