Enhanced energy storage performance of ferroelectric polymer nanocomposites at relatively low electric fields induced by surface modified BaTiO 3 nanofibers

Zeyu Li, Feihua Liu, Guang Yang, He Li, Lijie Dong, Chuanxi Xiong, Qing Wang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Polymer nanocomposite dielectrics with high energy densities have shown great potential in electrical energy storage applications. However, these high energy densities are normally achieved at ultrahigh applied electric fields (≥400 MV/m), which is inconvenient for certain applications such as aerospace power systems and microelectronics. In this study, uniform BaTiO 3 nanofibers (BT nfs) with a large aspect ratio were prepared via the electrospinning method, surface modified by poly(vinyl pyrrolidone) (PVP) and utilized as the fillers in the poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) nanocomposites. It is found that the nanocomposite with 3 vol% BT nfs possesses a much enhanced discharged energy density of 8.55 J/cm 3 at an applied electric field of 300 MV/m, which is 43% higher than that of the neat polymer matrix (i.e. 5.98 J/cm 3 ) and more than four times that of the commercial biaxial oriented polypropylene dielectric (2 J/cm 3 at over 600 MV/m). Comparative studies have been performed on the corresponding nanocomposites with BT nanoparticle fillers and pristine BT nfs. The improved energy storage performance is ascribed to the synergetic effects of surface modification and large aspect ratio of BT nfs. Our research provides a facile and effective approach to high-performance electrical energy storage materials which work efficiently at relatively low operating voltages.

Original languageEnglish (US)
Pages (from-to)214-221
Number of pages8
JournalComposites Science and Technology
Volume164
DOIs
StatePublished - Aug 18 2018

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Nanofibers
Energy storage
Ferroelectric materials
Nanocomposites
Polymers
Electric fields
Fillers
Aspect ratio
Pyrrolidinones
Polypropylenes
Electrospinning
Polymer matrix
Microelectronics
Surface treatment
Nanoparticles
Electric potential

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Engineering(all)

Cite this

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title = "Enhanced energy storage performance of ferroelectric polymer nanocomposites at relatively low electric fields induced by surface modified BaTiO 3 nanofibers",
abstract = "Polymer nanocomposite dielectrics with high energy densities have shown great potential in electrical energy storage applications. However, these high energy densities are normally achieved at ultrahigh applied electric fields (≥400 MV/m), which is inconvenient for certain applications such as aerospace power systems and microelectronics. In this study, uniform BaTiO 3 nanofibers (BT nfs) with a large aspect ratio were prepared via the electrospinning method, surface modified by poly(vinyl pyrrolidone) (PVP) and utilized as the fillers in the poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) nanocomposites. It is found that the nanocomposite with 3 vol{\%} BT nfs possesses a much enhanced discharged energy density of 8.55 J/cm 3 at an applied electric field of 300 MV/m, which is 43{\%} higher than that of the neat polymer matrix (i.e. 5.98 J/cm 3 ) and more than four times that of the commercial biaxial oriented polypropylene dielectric (2 J/cm 3 at over 600 MV/m). Comparative studies have been performed on the corresponding nanocomposites with BT nanoparticle fillers and pristine BT nfs. The improved energy storage performance is ascribed to the synergetic effects of surface modification and large aspect ratio of BT nfs. Our research provides a facile and effective approach to high-performance electrical energy storage materials which work efficiently at relatively low operating voltages.",
author = "Zeyu Li and Feihua Liu and Guang Yang and He Li and Lijie Dong and Chuanxi Xiong and Qing Wang",
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Enhanced energy storage performance of ferroelectric polymer nanocomposites at relatively low electric fields induced by surface modified BaTiO 3 nanofibers . / Li, Zeyu; Liu, Feihua; Yang, Guang; Li, He; Dong, Lijie; Xiong, Chuanxi; Wang, Qing.

In: Composites Science and Technology, Vol. 164, 18.08.2018, p. 214-221.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Enhanced energy storage performance of ferroelectric polymer nanocomposites at relatively low electric fields induced by surface modified BaTiO 3 nanofibers

AU - Li, Zeyu

AU - Liu, Feihua

AU - Yang, Guang

AU - Li, He

AU - Dong, Lijie

AU - Xiong, Chuanxi

AU - Wang, Qing

PY - 2018/8/18

Y1 - 2018/8/18

N2 - Polymer nanocomposite dielectrics with high energy densities have shown great potential in electrical energy storage applications. However, these high energy densities are normally achieved at ultrahigh applied electric fields (≥400 MV/m), which is inconvenient for certain applications such as aerospace power systems and microelectronics. In this study, uniform BaTiO 3 nanofibers (BT nfs) with a large aspect ratio were prepared via the electrospinning method, surface modified by poly(vinyl pyrrolidone) (PVP) and utilized as the fillers in the poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) nanocomposites. It is found that the nanocomposite with 3 vol% BT nfs possesses a much enhanced discharged energy density of 8.55 J/cm 3 at an applied electric field of 300 MV/m, which is 43% higher than that of the neat polymer matrix (i.e. 5.98 J/cm 3 ) and more than four times that of the commercial biaxial oriented polypropylene dielectric (2 J/cm 3 at over 600 MV/m). Comparative studies have been performed on the corresponding nanocomposites with BT nanoparticle fillers and pristine BT nfs. The improved energy storage performance is ascribed to the synergetic effects of surface modification and large aspect ratio of BT nfs. Our research provides a facile and effective approach to high-performance electrical energy storage materials which work efficiently at relatively low operating voltages.

AB - Polymer nanocomposite dielectrics with high energy densities have shown great potential in electrical energy storage applications. However, these high energy densities are normally achieved at ultrahigh applied electric fields (≥400 MV/m), which is inconvenient for certain applications such as aerospace power systems and microelectronics. In this study, uniform BaTiO 3 nanofibers (BT nfs) with a large aspect ratio were prepared via the electrospinning method, surface modified by poly(vinyl pyrrolidone) (PVP) and utilized as the fillers in the poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) nanocomposites. It is found that the nanocomposite with 3 vol% BT nfs possesses a much enhanced discharged energy density of 8.55 J/cm 3 at an applied electric field of 300 MV/m, which is 43% higher than that of the neat polymer matrix (i.e. 5.98 J/cm 3 ) and more than four times that of the commercial biaxial oriented polypropylene dielectric (2 J/cm 3 at over 600 MV/m). Comparative studies have been performed on the corresponding nanocomposites with BT nanoparticle fillers and pristine BT nfs. The improved energy storage performance is ascribed to the synergetic effects of surface modification and large aspect ratio of BT nfs. Our research provides a facile and effective approach to high-performance electrical energy storage materials which work efficiently at relatively low operating voltages.

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