Fig. 4: Multi-field cross-scale modeling and mesoscopic analysis of Li2O2 particle growth. | Nature Communications

Fig. 4: Multi-field cross-scale modeling and mesoscopic analysis of Li2O2 particle growth.

From: Breaking the capacity bottleneck of lithium-oxygen batteries through reconceptualizing transport and nucleation kinetics

Fig. 4

a Scheme of the computational domain and reaction process. b Growth results of Li2O2 particles at the oxygen and separator sides and LiO2 concentration distribution in the presence of 0%, 10%, and 20% electrochemical area loss. The dark red circles represent Li2O2 particles. c Order parameter along the central axis (i.e., 0.5 Lchannel). d The summary of Li2O2 particle diameter at the oxygen and separator sides in the presence of different electrochemical area loss. e The comparison of oxygen concentration at the inlet in the presence of 0 and 20% electrochemical area loss. f Oxygen distribution along the central axis. g Time-dependent growth rate (kg) of Li2O2 particles along the central axis at 10% electrochemical area loss. The ΦO and Φs represent the diameters of Li2O2 particles on the oxygen and separator sides, respectively. The growth rates at DODs of (h) 5% and (i) 75%.

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