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Relaxor antiferroelectric-like characteristic boosting enhanced energy storage performance in eco-friendly (Bi0.5Na0.5)TiO3-based ceramics

  • Xi'an Jiaotong University
  • Southwest University
  • Ural Federal University

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

Ideal relaxor antiferroelectrics (RAFEs) have high field-induced polarization, low remnant polarization and very slim hysteresis, which can generate high recoverable energy storage Wrec and high energy storage efficiency η, thus attracting much attention for energy storage applications. True RAFEs, on the other hand, are extremely rare, and the majority of them contain environmentally hazardous lead. In this work, we use a viscous polymer rolling process to synthesize a novel and eco-friendly 0.65Bi0.5Na0.4K0.1TiO3-0.35[2/3SrTiO3-1/3Bi(Mg2/3Nb1/3)O3] (BNKT-ST-BMN) dielectric material, which possesses a very typical RAFE-like characteristic. As a result, this material has a high Wrec of 4.43 J/cm3 and a η of 86% at an electric felid of 290 kV/cm, as well as a high thermal stability of Wrec (>3 J/cm3) over a wide range of 30–140 °C at 250 kV/cm. Our findings suggest that the BNKT-ST-BMN material could be a potential candidate for use in energy storage pulse capacitors.

Original languageEnglish
Pages (from-to)4528-4538
Number of pages11
JournalJournal of the European Ceramic Society
Volume42
Issue number11
DOIs
StatePublished - Sep 2022

Keywords

  • BNT-based
  • Eco-friendly
  • Energy storage
  • Relaxor ferroelectrics
  • Viscous polymer process

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