Publication detail

Enhanced energy-storage performance with excellent stability under low electric fields in BNT–ST relaxor ferroelectric ceramics

Weigang Ma, Yiwei Zhu, Mohsin Ali Marwat, Pengyuan Fan, Bing Xie, David Salamon, Zuo-Guang Ye and Haibo Zhang

Original Title

Enhanced energy-storage performance with excellent stability under low electric fields in BNT–ST relaxor ferroelectric ceramics

Type

journal article in Scopus

Language

English

Original Abstract

Relaxor ferroelectrics are promising candidates for pulsed power dielectric capacitor applications because of their excellent energy-storage properties. Different from most relaxor ferroelectrics whose energy-storage density was improved by increasing the breakdown strength and reducing the remanent polarization, in this study, anti-ferroelectric (AFE) AgNbO3 (AN) was used to partially substitute the relaxor ferroelectric 0.76Bi0.5Na0.5TiO3–0.24SrTiO3 (BNT–ST) of morphotropic phase boundary (MPB) composition to reduce the remanent polarization while maintaining large maximum polarization. In this way, a large recoverable energy-storage density (2.03 J cm−3) was obtained in the BNT–ST–5AN ceramics under lower electric field of 120 kV cm−1, which is superior to other lead-free energy-storage materials under similar electric fields. Moreover, excellent temperature (25–175 °C) and frequency (1–100 Hz) stabilities are achieved. This performance demonstrates that the BNT–ST–5AN ceramics form a promising class of dielectric capacitive material for high-temperature pulsed power capacitors with large energy-storage density.

Keywords

energy-storage; relaxor ferroelectric; large polarization; morphotropic phase boundary (MPB); temperature stability

Authors

Weigang Ma, Yiwei Zhu, Mohsin Ali Marwat, Pengyuan Fan, Bing Xie, David Salamon, Zuo-Guang Ye and Haibo Zhang

Released

1. 1. 2019

ISBN

2050-7534

Periodical

Journal of Materials Chemistry C

Year of study

7

Number

2

State

United Kingdom of Great Britain and Northern Ireland

Pages from

281

Pages to

288

Pages count

8

URL

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

BibTex

@article{BUT151910,
  author="David {Salamon}",
  title="Enhanced energy-storage performance with excellent stability under low electric fields in BNT–ST relaxor ferroelectric ceramics",
  journal="Journal of Materials Chemistry C",
  year="2019",
  volume="7",
  number="2",
  pages="281--288",
  doi="10.1039/C8TC04447C",
  issn="2050-7534",
  url="https://pubs.rsc.org/en/Content/ArticleLanding/2018/TC/C8TC04447C#!divAbstract"
}