At close values of the diffusion parameters (limiting diffusion current and the diffusion coefficient), the exchange current density of zinc sulfate in the electrolyte is less than that of zincate. The electrolyte composition has a significant effect on the rate of the growth of dendritic zinc deposits and their morphology. Loose zinc deposits obtained from zincate electrolyte, are formed by the branched dendrites and have a low density, whereas in sulfate electrolyte particles are formed, which consist of large faceted fused branches. When exceeding the limiting current density in nine or more times in sulfate solution the effect of the dispergation of dendritic zinc particles from the cathode surface into the volume of the electrolyte is observed.