Dynamic electrochemical impedance spectroscopy (DEIS) during CC-CV for ML2020 coin cells

This dataset contains dynamic electrochemical impedance spectroscopy (DEIS) and reference electrochemical measurements on commercial lithium-ion coin cells. Dynamic impedance frequency response is estimated from multi-frequency voltage/current signals over 10 mHz to 100 kHz during CC-CV cycling, from fresh to aged condition. In practice, one impedance spectrum is produced every 100 s (one excitation period), covering different states of charge and states of health across cell lifetime. Dataset composition: 9 cells measured with DEIS during CC-CV cycling. 12 additional cells measured with the same CC-CV protocol but without multi-sine impedance. 3 sets of equilibrium single-sine EIS measurements across state of charge. 2 single-sine EIS of new cells