Significantly Enhanced Electrostatic Energy Storage Performance of Flexible Polymer Composites by Introducing Highly Insulating‐Ferroelectric Microhybrids as Fillers
By S. Luo, Junyi Yu, Shuhui Yu, R. Sun, Liqiang Cao, Wei-Hsin Liao, C. Wong. Advanced Energy Materials, 2018
281 citations recorded by the source corpus.
A hybrid nanoparticle, consisting of BaTiO3 nanoparticles tightly embedded in bronnitride (BN) nanosheets, has been fabricated based on a daring supposition that BN may act as a host to incorporate ferroelectric nanoparticles to improve insulation and polarization under a high electric field. Using the hybrids as fillers in poly(vinylidene fluoride) (PVDF) composites, a high electric breakdown strength (Eb ≈580 kV/mm), which is 1.76 times of the PVDF film, is obtained when the filler content is 5 wt%. A large displacement (9.3 µC/cm2 under 580 kV/mm) is observed so as to obtain a high discharged energy density (Ud ≈17.6 J/cm3) of the BT@BN/PVDF composites, which is 2.8 times of the PVDF film. The enhancement ratio of Eb achieved in this study demonstrates the highest among the reported results. This hybrid structure of fillers provides an effective way to adjust and improve the energy storage properties of the polymer‐based dielectrics.
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/907de6dac8317dbcfa6bb8a18624d6b2690c14c3
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Citations in the corpus
- Ternary polymer nanocomposites with concurrently enhanced dielectric constant and breakdown strength for high‐temperature electrostatic capacitors (2019, background): “Alternatively, wide-band-gap fillers such as aluminum oxide (Al2O3), silicon dioxide (SiO2), and boron nitride (BN) have been utilized to enhance breakdown strength of polymer composites.(33-37) For instance, a library of BN nanosheets (BNNSs)-based polymer nanocomposites have been prepared by using”