Gradient Dielectric Distributed Nanofiber Engineered Polyetherimide for Enhanced Energy Density at High Temperatures.
Polymer dielectric composites are promising candidates for next-generation pulse capacitors, yet it remains challenging to combine high energy density, high charge-discharge efficiency, and reliable operation at elevated temperatures. Here, 1D core-shell SiO2@Hf0.5Zr0.5O2 (SiO2@HZO) nanofibers are designed as dielectri...