Jump to main content
Jump to site search


Significantly enhanced energy storage density for poly(vinylidene fluoride) composites by induced PDA-coated 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 nanofibers

Abstract

In this study, the high aspect ratio of TiO2 nanofibers (TiO2 NFs), BaTiO3 nanofibers (BT NFs), CaCu3Ti4O12 nanofibers (CCTO NFs) and 0.5Ba(Zr0.2Ti0.8)O3- 0.5(Ba0.7Ca0.3)TiO3 nanofibers (BZT-BCT NFs) were prepared via electrospinning technique. The nanofibers have been modified by polydopamine (PDA), which exhibited excellent dispersion and good compatibility with the polymer matrix. The effects of structure and morphology of the fillers on the dielectric properties, leakage current density and energy densities of the composites have been also discussed systematically. Comparing with five different poly(vinylidene fluoride) (PVDF) composites, we discovered that the BZT-BCT NFs/PVDF composite possessed low loss, small leakage current and excellent storage performance. On this basis, the BZT-BCT NFs/PVDF composites with different volume content were also fabricated. It can be found that the 7 vol.% BZT-BCT NFs/PVDF nanocomposite had the much more excellent dielectric constant (ε ~ 17.6 at 100 Hz). Nevertheless, the 3 vol.% BZT-BCT NFs/PVDF nanocomposite kept a higher energy storage density (Ue ~ 7.86 J/cm3) and a greater efficiency (η ~ 58%) at 310 kV/mm. This study may provide a new direction to enhance the energy density of inorganic/PVDF composite.

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 May 2017, accepted on 11 Jul 2017 and first published on 11 Jul 2017


Article type: Paper
DOI: 10.1039/C7TA03897F
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Significantly enhanced energy storage density for poly(vinylidene fluoride) composites by induced PDA-coated 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 nanofibers

    Q. G. Chi, T. Ma, Y. Zhang, Y. Cui, C.H. Zhang, J. Lin, X. Wang and Q. Lei, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA03897F

Search articles by author

Spotlight

Advertisements