Figure 3 | Scientific Reports

Figure 3

From: Molecular Dynamics of Lithium Ion Transport in a Model Solid Electrolyte Interphase

Figure 3

Mean-squared displacements, \(\langle {\rm{\Delta }}r{(t)}^{2}\rangle \), measured for Li+ in EDC (left) and EC (right). The behavior in EDC at intermediate timescales 0.001< t < 1 (ns) demonstrates trapping of the Li+ ion. Ballistic motion \((\langle {\rm{\Delta }}r{(t)}^{2}\rangle \propto {t}^{2})\) is evident at short timescales, while diffusive motion \((\langle {\rm{\Delta }}r{(t)}^{2}\rangle \propto {t}^{1})\) appears at long timescales in both EDC and EC solvents. Dashed lines with slope 1 and 2 (log-scale) are provided as visual cues. At high T, the trapping regime (shaded region) diminishes and the EDC matrix behaves more like liquid EC. Note that the time scales differ dramatically between the two systems. (Redrawn with permission from ECS Transactions 77, 1155–1162 (2017))13.

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