Crosslinked dielectric materials for high-temperature capacitive energy storage

Polymer film capacitors for energy storage applications at high temperature have shown great potential in modern electronic and electrical systems such as those used in aerospace, automotive, and oil exploration industries. The crosslinking strategy has been regarded as one of the most feasible approaches for polymer dielectrics to meet the high temperature requirements. This article presents recent progress in the field of crosslinked polymer-based materials as high-performance dielectrics at elevated temperature. Self-crosslinking polymers, polymers crosslinked by agents and crosslinked polymer nanocomposites are the focus of materials reviewed. We identify the critical relationships between the crosslinking construction methods and the capacitive energy storage properties of dielectric materials on the molecular scale. An in-depth analysis of challenges and future prospects in this field is also provided. The understanding of the crosslinking strategy enables the rational design of polymer-based materials for high-temperature capacitive energy storage.