LiCoO2 symmetric cells were demonstrated as ideal model system for studying the interfacial charge-transfer kinetics in LIBs. Three electrochemical techniques were developed for high current density kinetic measurements: S3E-CP, LA-GEIS, and O-GEIS. S3E-CP works by extrapolating the voltage versus capacity data from short galvanostatic pulses to a capacity of zero to approximate steady-state conditions. LA-GEIS works by applying a large amplitude current excitation about the equilibrium voltage of the cell, while O-GEIS works by applying a smallamplitude current excitation about a much larger direct-current bias. O-GEIS, unlike the other two techniques, measures the differential charge-transfer resistance. The ohmic resistance was