Development of Catalyst with Optimum Calcination Temperature for the Application of Zinc-Air Battery

Abstract

Zinc-air batteries (ZABs) have several challenges that hamper large-scale commercialization because of cost, charge/discharge performance of the cathode catalyst. To overcome these problems, perovskite oxides such as LaSr3Fe3O10 (LSFCO) catalysts, were prepared using the complex polymerization synthesis method to investigate the relationship between catalyst activity and calcination temperature. The particle diameter of the prepared LSFCO catalysts and the crystalline structure of the perovskite samples were increased with increasing calcination temperature. In the case of 1400ºC, the highest catalytic activity of the LSFCO catalyst was derived from CV analyses and the constant current charge/discharge measurement for ZABs. It is suggested that the high catalytic activity of the LSFCO catalyst can be obtained by providing a high calcination temperature with larger particles.