[8p-Z26-1~23] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

△ [8p-Z26-11] Development of Vanadate Glass-based Air-Electrode Catalyst containing 3d Block Elements

〇(M1)Takahisa Sakuragi¹, Hajime Miyamoto¹, Ryoya Sugimoto¹, Ryouta Imamura¹, Shunsuke Matsusako¹, Masayoshi Yuasa¹, Tetsuaki Nishida¹, Nobuto Oka¹ (1.Kindai Univ.)

Keywords:Air-electrode glass catalyst, vanadate glass, 3d-block elements

Metal-air battery has a very high energy density because it could use atmospheric oxygen as the electrode active material. This 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, new vanadate glass catalysts containing 3d-block elements were developed and its electrochemical performance was evaluated.