Carrier-Localized Polyimide Dielectric

8.93 J cm⁻³ at 150 °C

By synergistically suppressing both intramolecular and intermolecular charge transfer through molecular engineering and a directional intercalation structure, this all-organic polyimide dielectric achieves exceptional breakdown strength and energy storage density at elevated temperatures.

Lingzhi, Nie · Zhang, Pengtu · Xiao, Song · Li, Yi · Zuo, Peiyuan · Liu, Xiaoyun · Zhuang, Qixin

Advanced Materials 2025

Specifications

density at C

{'zh': '> 90', 'en': '> 90'} %

Advantages

878.9 kV mm⁻¹ breakdown strength at 150 °C

8.93 J cm⁻³ energy density at 150 °C

215 µC m⁻² charge density when integrated into a self-excited triboelectric nanogenerator