Abstract
The effect of inorganic and organic additives on the electrodeposition or electrodissolution of zinc in aqueous zinc bromide solution has been studied by the faradaic impedance method. The reaction velocity for zinc decreased when additives were used, but the rate-determining step in the process of zinc deposition was scarcely influenced. The characteristics of the charging-discharging cycle was found to be much improved by the presence of Sn2+ ion in the bath.It was confirmed that the oxide film on the anode is removed by the reduction of Sn2+ ion.
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