New Insights into the Decoupling Mechanism of Ion Motion from Segmental Relaxation in Glass-Forming Polymers: The Interplay of Cohesive Energy Density
Decoupling ion transport from segmental motion offers a promising route for solid polymer electrolytes, yet identifying its governing factor, whether the glass transition temperature (Tg), fragility index (m), or dynamic heterogeneity, remains challenging due to their inherent interdependence. Here, we systematically...