Figure 4
From: A Facile Approach to High Precision Detection of Cell-to-Cell Variation for Li-ion Batteries
Correlations between cell capacity and the three voltage indexes measured by CiS method. (a–c) Correlations between cell capacity and Vd-end, Vd-30min and Vc-end; (d–f) Correlations between cell resistance and Vd-end, Vd-30min and Vc-end; Cell resistance was calculated by dividing the difference between Vd-end and Vd-60s by the discharge current. Vd-60s was the cell voltage after the end of discharge for 60 s.
