precisely measured with PEIS of separate symmetric cells under both blocking and interacting conditions to enable accurate IR compensation of the kinetic measurements. For each technique, it was quantitatively shown that the conditions of stability, stationarity, and linearity can be satisfactorily met with optimized measurement conditions. Although the interfacial resistance of LCO is highly sensitive to electrolyte impurities, the measurements appear to be generally nondestructive at current densities of up to 250 mA cm -2 . Due to the high activation energy for interfacial charge-transfer, extremely precise temperature control is needed for accurate measurements. At high current densities, even slight resistive heating of the cell (< 1°C) causes significant resistance changes, which can lead to inaccurate results, especially for LA-GEIS; this can be effectively mitigated with a limited current density and appropriate rest times between measurements. While S3E-CP and LA-GEIS are inherently stationary, O-GEIS measurements are sensitive to drift at high current densities and low frequencies; this can be mitigated by employing drift correction of the impedance data and limiting the measurements to high frequencies (e.g., > 100 Hz). Due to the small excitation amplitude, the impedance response from O-GEIS measurements was shown to be highly linear, even when the measurements were conducted within the strongly non-linear region of the kinetics. Conversely, due to the large amplitude excitation of LA-GEIS, harmonic distortions of the impedance response render the linear impedance measurement inaccurate at high current densities; however, the total harmonic distortion is sufficiently low within the weakly non-linear region of the kinetics to obtain accurate LA-GEIS measurements.