Author

He Qi

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Open access Aug 2026

Gradient Defect Architecture for Ultrahigh Energy Storage in Lead‐Free Relaxor Ferroelectrics

Next‐generation pulsed power electronics demand miniaturized dielectric capacitors with exceptional energy density. However, achieving this remains challenged by the intrinsic trade‐off between polarization capability and dielectric breakdown strength in lead‐free perovskites. Here, we overcome this fundamental limit v...

Weisan Fang, Xiao-Ming Shi, Jun-Lin Wu et al. · Advanced Functional Material... · 0 citations

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. · Small · 0 citations

Aug 2026

Machine-Learning-Guided Polarization-Lattice Decoupling Enables Ultrahigh Energy Storage in Lead-Free Dielectric Ceramics.

Achieving ultrahigh energy storage in lead-free dielectric ceramics is fundamentally constrained by the intrinsic trade-off between large polarization and high dielectric breakdown strength. Here, we establish an interpretable machine-learning-guided design framework that quantitatively links ionic descriptors with pol...

Zi-Xiong Sun, Yao Li, Hong-Yu Yang et al. · Advances in Materials · 2 citations