Fig. 4: Comparison between the slope of OCP derived from the GITT and ICI method. | Nature Communications

Fig. 4: Comparison between the slope of OCP derived from the GITT and ICI method.

From: Rapid determination of solid-state diffusion coefficients in Li-based batteries via intermittent current interruption method

Fig. 4

The slope of the OCP (∆EOC/∆tI) obtained from the relaxed potentials at the end of each rest period (GITT) is compared with the slope of the potential under constant-current load subtracting the iR-drop derived from the ICI method (∆[E(∆t = 0)]/∆tI, marked as ICI). The values are obtained from Cell 1 in the first cycles and the positive and negative during charging and discharging, respectively. The analysis of the difference between the values derived from the GITT and ICI methods can be found in Supplementary Fig. 12.

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