Abstract
Polymer-based materials with a high discharge energy and low energy loss have attracted considerable attention for energy storage applications. A new class of polymer-based composite films composed of amorphous polycarbonate (PC) and poly(vinylidene fluoride-hexafluoropropylene) [P(VDF-HFP)] has been fabricated by simply solution blending followed by thermal treatment under vacuum. The results show that the diameter of the spherical phase for PC and the melting temperature of P(VDF-HFP) increase, and the crystallinity and crystallization temperature of P(VDF-HFP) decrease with increasing PC content. The phase transition from the polar β phase to weak polarity γ phase is induced by PC addition. Moreover, the Curie temperature of the P(VDF-HFP)/PC composite films shifts to a lower temperature. With the addition of PC, the permittivity, polarization and discharge energy of the P(VDF-HFP)/PC composite films slightly decrease. However, the energy loss is significantly reduced.
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This work was funded by Natural Science Foundations of Hebei province of China (E2012203153).
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Zhao, X., Peng, G. & Zhan, Z. Dielectric and Energy Storage Properties of the Heterogeneous P(VDF-HFP)/PC Composite Films. JOM 69, 2453–2459 (2017). https://doi.org/10.1007/s11837-016-2116-6
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DOI: https://doi.org/10.1007/s11837-016-2116-6