The dataset contains dynamic impedance data from three commercial 18650 cylindrical cells: Samsung INR 18650-35E, Samsung INR 18650-29E and TerraE INR 18650-25P. The cells were charged with C-rates of 0.25, 0.5, 1, 2, 3 and 4C. The cells were cycled in a climate chamber with 25°C for the Samsung cells and 25°C and 0°C for the TerraE.
Impedance data was collected at 1 Hz for the Samsung cells and from 2kHz-5Hz for the TerraE with a multi-sine excitation.