[21a-P04-1~5] 1.4 Energy conversion, storage, resources and environment

[21a-P04-5] Effect of Co^III content on the Air-Electrode Catalysis of Vanadate Glass developed for Metal-Air Rechargeable Battery

〇(M1)Saeko Matsuo¹, Takahisa Sakuragi¹, Ryota Imamura¹, Shunsuke Matsusako¹, Hyuga Nakahara¹, Masayoshi Yuasa¹, Tetsuaki Nishida², Nobuto Oka¹ (1.Kindai Univ., 2.Environmental Materials Inst.)

Keywords:air electrocatalysts, vanadate glass, metal-air battery

Metal-air rechargeable battery needs bifunctional catalytic materials, which involve effective oxygen reduction / evolution reactions at the air electrode at the discharge/charge process. We have so far developed new bifunctional catalytic materials for the air electrode using vanadate glasses without noble-metals and minor metals. In this study, a new bifunctional catalytic material for the air electrode has developed using a conductive vanadate glass containing Co and its oxygen reduction reaction mechanism has been investigated by using rotating ring disk electrode measurements.