Image database of synthetic capacitive Electrochemical Impedance Spectroscopy (EIS) spectra for system identification [Dataset]

The database comprises 48 000 different examples consisting in synthetic Nyquist plots generated using Voigt circuits with between one and four time constants. The examples are classified into 4 different classes acording to the number of time constants: class 1 corresponds to 1 time constant, class 2 to 2 time constants, class 3 to 3 time constants, and class 4 to 4 time constants.