Development and Optimization of Air-Electrodes for Rechargeable Zn–Air Batteries

Rechargeable Zn–air batteries (ZABs) can play a significant role in the transition to cleaner and more sustainable energy system due their high theoretical density, cell voltage, environmental friendliness. ZAB’s air cathode is principal determinant predicting battery’s overall performance, as it responsible for catalyzing oxygen reduction reaction (ORR) evolution (OER) during discharging charging process, respectively. In this work, detailed optimization study of architecture was carried out using benchmark bifunctional electrocatalyst (Pt/C-RuO2). The composition were optimized regarding choice commercial gas diffusion layer (GDL), effect hot pressing catalyst (CL), optimum pore size current collector. best from shows maximum power density (PDmax) 167 mW/cm2, with round trip efficiency voltage gap (Egap) 59.8% 0.78 V, respectively, indicating cathodes preparation approach proposed work promising strategy improvement performance ZABs.