Fig. 9: Impact of voltage range, C-rate and charging cycle number on energy during charging. | Communications Engineering

Fig. 9: Impact of voltage range, C-rate and charging cycle number on energy during charging.

From: Domain knowledge-guided machine learning framework for state of health estimation in Lithium-ion batteries

Fig. 9

The amount of energy during charging (Ech) depends on the voltage range and the charging rate. As the charging rate increases (from C/4 for cell V4 (a), to C/2 for cell W8 (b), to 1C for W9 (c)), the peak in charging energy shifts towards higher voltage ranges, i.e., [3.675 V - 3.7 V] at C/4, [3.7 V - 3.725 V] at C/2 and [3.825 V - 3.85 V] at 1C.

Back to article page