Abstract
Computer analysis of the mathematical model of discharge of sintered-type nickel oxide electrodes of compacted and ceramic metal types and also of the most promising at present electrodes on porous polymer metalized supports is presented. The model allows estimating the dependence of polarization of the electrode on the concentration of electrolyte, discharge current density, electrode thickness and porosity, effect of proton diffusion and solid phase conductivity on the performance of an individual grain of the active substance. The calculations take into account occurrence of the electrochemical process via the solid-phase mechanism and diffusion and migration of components of electrolyte. Analysis of data according to the suggested model shows its applicability for studying the capacity of nickel oxide electrodes of sintered-type design under different conditions of operation of alkaline power sources.
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Original Russian Text © Yu.L. Gun’ko, O.L. Kozina, M.G. Mikhalenko, A.B. Loskutov, A.A. Myunts, 2015, published in Elektrokhimiya, 2015, Vol. 51, No. 10, pp. 1060–1070.
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Gun’ko, Y.L., Kozina, O.L., Mikhalenko, M.G. et al. Mathematical simulation of discharge of sintered-type nickel oxide electrode of nickel–cadmium battery. Russ J Electrochem 51, 935–944 (2015). https://doi.org/10.1134/S1023193515100055
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DOI: https://doi.org/10.1134/S1023193515100055