fig15

Figure 15. Accuracy analysis of the classification using various combinations of the three features (1, 2, 3) taken from the ICA curves (A), the CV curve (B) and the EIS curve (C) the three classification criteria, and the four algorithms when the batteries are classified into (i) 4 and (ii) 5 groups^[40]. ICA: Incremental capacity analysis; CV: constant-voltage; EIS: electrochemical impedance spectroscopy.