Temperature Dependence of Iron and Cadmium Alkaline Electrodes
- 1 August 1976
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 123 (8) , 1139-1144
- https://doi.org/10.1149/1.2133023
Abstract
The charge and discharge reactions of the alkaline iron and cadmium electrodes go over the soluble intermediates , , and , respectively. The saturation concentrations for these ionic species are rate determining as they directly influence the rates of diffusion and crystallization. By calculating the temperature coefficients for the reactions involved, it is shown that the saturation concentrations for and are highly temperature dependent while this is not the case for the cadmium intermediate. This explains the bad performance of the iron electrode at low temperatures.Keywords
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