Figure 3
a Family of Nyquist plots collected from the 1st and 10th–100th discharged states (at 10-cycle intervals) over a frequency range from 20 kHz to 10 Hz, including an equivalent circuit analog for curve fitting.b Magnified view of Nyquist plots for the 20th, 40th, 70th, and 100th discharged states to show the disappearance of the border between SEI and charge transfer contribution