4:15 PM - 4:30 PM [6p-A401-10] Electrochemical Impedance Measurement of Lithium Ion Batteries with Si Swarf Anode during Cycles at Limited Delithiation/Lithiation Capacity 〇Taketoshi Matsumoto1, Katsuya Kimura1, Hikaru Kobayashi1 (1.ISIR, Osaka Univ.)