Liquid metal interface mechanochemistry disentangles energy density and biaxial-stretchability tradeoff in composite capacitor film
Kai Wu,
Zilong Xie,
Jianan Zhu
et al.
Abstract:Dielectric polymer composites for film capacitors have advanced significantly in recent decades, yet their practical implementation in industrial-scale, thin-film processing faces challenges, particularly due to limited biaxial stretchability. Here, we introduce a mechanochemical solution that applies liquid metal onto rigid dielectric fillers (e.g. boron nitride), dramatically transforming polymer-filler interface characteristics. This approach significantly reduces modulus mismatch and stress concentration a… Show more
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