The results are plotted in Figure and. Once again, the strong predictive power of the optimized model is clearly demonstrated, in comparison with the original GAFF. To investigate the reliability of the model in greater details, we further examine its capability to capture the quantitative trends of electrical conductivity with respect to tem- peratures and composition ratios. Capturing such trends is important for the physical understanding of the electrolyte behavior, thus is crucial for the rational design of electrolytes.