Figure 5
From: A Facile Approach to High Precision Detection of Cell-to-Cell Variation for Li-ion Batteries
The homogeneity screening parameters of 80 cells after rest for 2.5 years. (a,c) charge(0.5 C)/discharge(1 C) curves of 80 cells which were connected in series; (b,d) The statistics of Vc-end, Vd-30min and Vd-end, respectively; (a,b) the parameters collected in December of 2015; (c,d) the parameters collected in June of 2018. When discharge/charge was at 2 C, the cells showed relative standard deviations (δ) of 0.09%, 0.93% and 2.14% for Vc-end, Vd-30min and Vd-end, respectively.
