Enhancing the high-temperature energy storage properties of PEI dielectrics by constructing trap-rich covalently cross-linked networks via POSS-functionalized BNNS

The covalent crosslinked network constructed by BNNS@POSS in PEI achieves co-regulation of interfaces and traps, balances the dielectric constant and breakdown strength, and improves the energy density and charging/discharging efficiency of PEI.