Über die genauigkeit mit der sich stromverteilungen in porösen elektroden ermitteln lassen

Abstract

The current distribution in porous electrodes of galvanic cells and accumulators can be obtained with only limited accuracy. The essential reason for this uncertainty is less the insufficient sharpness of the calculation or the rough approximation of the polarization curve, but rather the fact that it is only possible to measure the basic parameters of the electrodes with considerable errors.Even the initial current distribution, immediately after starting the current, can be calculated only approximately. During charge, the current-distribution curves flatten considerably. Mathematical treatment of this is possible only if two more basic parameters are known. But it is scarcely possible to measure these parameters; on the contrary, they can only be guessed from the observed flattening of the current distributions. Apart from special cases, only qualitative predictions are possible.