Publication detail

Constructing layered structures to enhance the breakdown strength and energy density of Na0.5Bi0.5TiO3-based lead-free dielectric ceramics

Mei Li, Pengyuan Fan, Weigang Ma, Kai Liu, Jiadong Zhang, Chanatip Samart, Ting Zhang, Hua Tan, David Salamon, Haibo Zhang

Original Title

Constructing layered structures to enhance the breakdown strength and energy density of Na0.5Bi0.5TiO3-based lead-free dielectric ceramics

Type

journal article in Web of Science

Language

English

Original Abstract

The improvement of breakdown strength for NBT-based ceramics is currently the main challenge in applications of lead-free dielectric energy-storage materials. In this study, large-polarization 0.65Na(0.5)Bi(0.5)TiO(3)-0.35SrTiO(3) (NBST) and high-efficiency 0.45Na(0.5)Bi(0.5)TiO(3)-0.55Sr(0.7)Bi(0.2)TiO(3) (NBSBT) ceramics were selected to construct layered ceramics. The effect of the number of interfaces on breakdown behavior and polarization was investigated by controlling the stacking of layered ceramics. The single-layer NBST/NBSBT alternately stacked layered ceramics achieved a maximum breakdown strength of 242 kV cm(-1), resulting in high recoverable energy storage density (4.48 J cm(-3)) and efficiency (similar to 90%). Meanwhile, the energy storage performance of NBST/NBSBT layered ceramics also exhibits excellent frequency (10-200 Hz) and temperature (25-125 degrees C) stability. The results prove that the large number of interfaces is beneficial to obtain high breakdown strength and maximum polarization, which brings new enlightenment to further improve the energy storage density of NBT-based materials.

Keywords

RELAXOR FERROELECTRIC CERAMICS; STORAGE PROPERTIES; POLYMER NANOCOMPOSITES; SINTERING TEMPERATURE; THIN-FILMS; EFFICIENCY; MICROSTRUCTURE; POLARIZATION; PERFORMANCE; INTERFACES

Authors

Mei Li, Pengyuan Fan, Weigang Ma, Kai Liu, Jiadong Zhang, Chanatip Samart, Ting Zhang, Hua Tan, David Salamon, Haibo Zhang

Released

28. 12. 2019

Publisher

ROYAL SOC CHEMISTRY

Location

CAMBRIDGE

ISBN

2050-7534

Periodical

Journal of Materials Chemistry C

Year of study

7

Number

48

State

United Kingdom of Great Britain and Northern Ireland

Pages from

15292

Pages to

15300

Pages count

9

URL

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

BibTex

@article{BUT161258,
  author="David {Salamon} and Hua {Tan}",
  title="Constructing layered structures to enhance the breakdown strength and energy density of Na0.5Bi0.5TiO3-based lead-free dielectric ceramics",
  journal="Journal of Materials Chemistry C",
  year="2019",
  volume="7",
  number="48",
  pages="15292--15300",
  doi="10.1039/c9tc05637h",
  issn="2050-7534",
  url="https://pubs.rsc.org/en/Content/ArticleLanding/2018/TC/C8TC04447C#!divAbstract"
}