Activation Energy for Post-amidization and Decomposition of Annealed Hybrid Polyimide Nanocomposite Electrodes for Advanced Energy Storage Systems

This study investigates the thermal behavior of annealed Carbon Nanotube/Polyvinylidene Fluoride/Polyimide; CNT/PVDF/PI hybrid nanocomposites using Differential Scanning Calorimetry (DSC) performed at varying heating rates of 5; 10; 15; and 20°C/min under nitrogen atmosphere. The Kissinger model was used to calculate the activation energy associated with the thermal transitions for the material. The DSC analysis revealed multiple thermal transitions; including post-amidization; imidization and degradation processes. The activation energies for each of the thermal transitions; provided essential insight into their kinetics. The knowledge gained from this study not only enhances our comprehension of the thermal properties of these composite materials but also offers valuable information for optimizing their performance. This paper contributes to the fundamental understanding of thermal stability of energy storage electrode materials.