Investigation of the cycling stability and energy storage properties of zinc titanate (ZnTiO3) perovskite material for zinc–air batteries

Abstract

With the merits of advantageous structure, morphology, purity, composition, and porosity, perovskites are explored as bifunctional alternatives to replace precious metals in the application of zinc–air batteries (ZABs). In this work, a new perovskite material, ZnTiO₃ (Zinc Titanate; ZTO), was developed and investigated for its performance in a rechargeable zinc–air battery (ZAB). The oxygen activities were also examined in alkaline solutions with O₂ and N₂ purging on the RDE (rotating disc electrode) system. The zinc–air cell so developed exhibits good performance with a specific capacity of 625 mA h g⁻¹ at a current density of 5 mA cm⁻². The rechargeable ZTO battery also shows high cycling stability with minimum fluctuations at 5 mA cm⁻² for 500 cycles, resulting in ZnTiO₃ being a promising candidate for zinc–air batteries.