Abstract
Zinc is an important metal that can be used for alkaline batteries. The addition of
very small amounts of indium, can slow down the corrosion rate, maintain sacrificial protection and improve charge and discharge properties of zinc in alkaline media for batteries application. The electrochemical and corrosion behavior of Zn and Zn−In alloys with different indium contents (0.5% and 1%, mass fraction) in 6 M KOH solution was investigated using electrochemical impedance spectroscopy and charge and discharge techniques. Furthermore, the microstructure of the corroded layers of Zn and Zn-In alloys were investigated via scanning electron microscopy (SEM).