Publication detail

Novel NaNbO3-Sr0.7Bi0.2TiO3 lead-free dielectric ceramics with excellent energy storage properties

WEI,T. LIU, K. FAN, P.Y. LU, DJ. YE, B. ZHOU, CR. YANG, H. TAN, H. SALAMON, D. NAN, B. ZHANG, H.

Original Title

Novel NaNbO3-Sr0.7Bi0.2TiO3 lead-free dielectric ceramics with excellent energy storage properties

Type

journal article in Web of Science

Language

English

Original Abstract

NaNbO3 (NN) is considered to be one of the most prospective lead-free antiferroelectric energy storage materials due to the merits of low cost, nontoxicity, and low density. Nevertheless, the electric field-induced ferroelectric phase remains dominant after the removal of the electric field, resulting in large residual polarization, which prevents NN ceramics from obtaining superior energy storage performance. In this work, the relaxor ferroelectric Sr0.7Bi0.2TiO3 (SBT) was chosen to partially replace the NN ceramics, and the introduction of the nanodomain of the relaxor ferroelectric hinders the generation of field-induced ferroelectric phases, allowing the material to combine the large polarization strength of the relaxor ferroelectric with the near-zero residual polarization of the antiferroelectric. Large recoverable energy storage density (4.5 J cm(-3)) and ultra-high energy storage efficiency (90.3%) were gained in NN-20SBT under an electric field of 288 kV cm(-1). Furthermore, superior temperature (25-120 degrees C) and frequency (1-500 Hz) stabilities were acquired. These performances demonstrate that NN20SBT ceramics are potential candidates as dielectric materials for high energy storage density pulsed power capacitors.

Keywords

Energy-storage; Perovskites; Dielectric properties; Grain size; X-ray methods

Authors

WEI,T.; LIU, K.; FAN, P.Y.; LU, DJ.; YE, B.; ZHOU, CR.; YANG, H.; TAN, H.; SALAMON, D.; NAN, B.; ZHANG, H.

Released

1. 2. 2021

Publisher

ELSEVIER SCI LTD

Location

OXFORD

ISBN

1873-3956

Periodical

CERAMICS INTERNATIONAL

Year of study

47

Number

3

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3713

Pages to

3719

Pages count

7

URL

https://www.sciencedirect.com/science/article/pii/S0272884220329461?via%3Dihub

BibTex

@article{BUT173108,
  author="WEI,T. and LIU, K. and FAN, P.Y. and LU, DJ. and YE, B. and ZHOU, CR. and YANG, H. and TAN, H. and SALAMON, D. and NAN, B. and ZHANG, H.",
  title="Novel NaNbO3-Sr0.7Bi0.2TiO3 lead-free dielectric ceramics with excellent energy storage properties",
  journal="CERAMICS INTERNATIONAL",
  year="2021",
  volume="47",
  number="3",
  pages="3713--3719",
  doi="10.1016/j.ceramint.2020.09.228",
  issn="1873-3956",
  url="https://www.sciencedirect.com/science/article/pii/S0272884220329461?via%3Dihub"
}