Abstract
A simulated, sectioned porous electrode was developed using the photolithography technique. The current distributions in Zn/zincate and porous electrodes were measured using the simulated electrodes for the study of charge and discharge processes. The result showed different current distributions for charge and discharge processes; the charging reaction current in the Zn/zincate system penetrated more deeply into the electrode than the discharging current did. The discharging reaction current in the system penetrated more than the charging current. These observed characteristics of the current distributions were analyzed using the theoretical results which were mathematically derived based on a migration model. Other applications of the simulated porous electrodes were also demonstrated for study of electrode passivation phenomena and for transient current distribution measurements.
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