Publication detail

Largely enhanced discharge energy density in linear polymer nanocomposites by designing a sandwich structure

Marwat, M.A.a, Xie, B., Zhu, Y., Fan, P., Ma, W., Liu, H., Ashtar, M., Xiao, J., Salamon, D., Samart, C., Zhang, H.

Original Title

Largely enhanced discharge energy density in linear polymer nanocomposites by designing a sandwich structure

Type

journal article in Web of Science

Language

English

Original Abstract

The development of flexible film dielectric capacitors with high discharge energy densities is of central significance for advanced electric and electronic power systems. Herein, a novel sandwich structure designed barium titanate/poly(methyl methacrylate) (BT/PMMA) nanocomposites are prepared layer-by-layer using solution casting method. The outer two layers with low BT nanoparticles concentration offered a considerably higher breakdown strength, while the central polarization layer with higher BT nanoparticles concentration presented higher dielectric constant to the nanocomposites. Consequently, 1-9-1 BT/PMMA nanocomposite compared to its single-layered counterpart (i.e. 9 wt% BT/PMMA) showed a ∼238% improvement in discharge energy density (i.e. from 1.8 J/cm 3 to 6.08 J/cm 3 ). The discharge rate analysis presented that 1-9-1 BT/PMMA discharges in 2.44 μs with a power density of about 0.5 MW/cm 3 at a time constant (τ 0.9 ). This work significantly paves the way for using sandwich-structured linear polymer nanocomposites in high energy density and fast discharge rate dielectrics application.

Keywords

Dielectric capacitors; Energy density; Energy storage; Flexible dielectric films; Polymer nanocomposites; Sandwich structure

Authors

Marwat, M.A.a, Xie, B., Zhu, Y., Fan, P., Ma, W., Liu, H., Ashtar, M., Xiao, J., Salamon, D., Samart, C., Zhang, H.

Released

15. 3. 2019

ISBN

1359-835X

Periodical

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

Year of study

121

Number

6

State

United Kingdom of Great Britain and Northern Ireland

Pages from

115

Pages to

122

Pages count

8

URL

https://pubs.rsc.org/en/Content/ArticleLanding/2018/TC/C8TC04447C#!divAbstract

BibTex

@article{BUT158057,
  author="David {Salamon}",
  title="Largely enhanced discharge energy density in linear polymer nanocomposites by designing a sandwich structure",
  journal="COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING",
  year="2019",
  volume="121",
  number="6",
  pages="115--122",
  doi="10.1016/j.compositesa.2019.03.016",
  issn="1359-835X",
  url="https://pubs.rsc.org/en/Content/ArticleLanding/2018/TC/C8TC04447C#!divAbstract"
}