Presentation Information

[17a-WL1_301-11]Reducing mesurement frequency in electrochemical impedance analysis by sparse sensing method

〇(B)Kazuki Horiuchi1, Shigeyasu Uno1 (1.Ritsumeikan Univ.)

Keywords:

Electrochemical Impedance Spectroscopy,sparse sensor placement optimization

In electrochemical impedance spectroscopy, it is customary to select a large number of measurement frequencies. However, the frequency characteristics of cell impedance have a clear pattern, and a small number of measurement frequencies may be sufficient. Therefore, in this study, we used a Randles-type equivalent circuit to data-drivenly determine the measurement frequencies for reconstructing the absolute value characteristics of cell impedance from a small number of measurements.