Schedule 1 9:20 AM - 9:40 AM [2D02] 密度汎関数法によるピロケイ酸鉄(II)ナトリウムNa2Fe2Si2O7の電極特性予測 *Tatau Shimada1, Eriko Watanabe1, Shin-ichi Nishimura1,2, Sai-Cheong Chung1, Atsuo Yamada1,2 (1. The University of Tokyo , 2. Kyoto University) Keywords:Sodium ion battery, Sodium iron pyrosilicate, Density functional theory