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Author

Guang-Hu He

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Open access Aug 2026

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...

Yuan Liu, Li-Wen Xue, Guang-Hu He et al. · 0 citations
Sep 2026

Enhanced High‐Temperature Capacitive Energy Storage in Topology‐Regulated Semi‐Aromatic Polyimides by Triazine Polarized Nodes and Helical Transport Barriers

Polymer dielectrics operating under extreme environments require increasingly higher demands on electrical insulation performance. Polyimide (PI), one of the most promising candidates for high‐temperature energy‐storage dielectrics, tends to form charge‐transfer complexes (CTCs) under high temperatures and high ele...

Xi Chen, Hang Luo, Guang-Hu He et al. · 0 citations
Open access Sep 2026

Tailoring the Orientation of Electron‐Delocalized Conjugated Structures in Polyimide Dielectrics for High‐Temperature Capacitive Energy Storage

Dielectric polymers for high‐temperature capacitive energy storage require both high thermal stability and electrical insulation. Although the rigid conjugated structure of polyimide affords a high glass transition temperature, making it a promising candidate, it also introduces compromised electrical insulation th...

Yu-Ting Wan, Shuo-Tong Wang, Hang Luo et al. · 0 citations
Sep 2026

Record-High Capacitive Energy Density in Polyimide Dielectrics at 300°C via Conformational-Vibrational Engineering.

Polymer dielectrics are crucial for capacitors in various applications, including electric vehicles, geothermal instrumentation, and aerospace systems. However, polymers tend to exhibit strongly nonlinear conduction at high temperatures and under high electric fields, leading to a rapid increase in leakage current and...

Guang-Hu He, Wen-Han Xu, Jia-Jun Peng et al. · 0 citations

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