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<p>This study demonstrates a successful strategy for designing 0.25(Na<sub>0.5</sub>Bi<sub>0.5</sub>)TiO<sub>3</sub>–0.75NaNbO<sub>3</sub>&#xa0;(0.25BNT–0.75NN)-based 0.025 (Ba<sub>0.8</sub>Ca<sub>0.1</sub>)(Ti<sub>0.9</sub>Zr<sub>0.1</sub>)O<sub>3</sub>–0.1B<sub>2</sub>O<sub>3</sub> (abbreviate BBCZT) (2.5% glass) phase for the enhancement of their energy storage properties and suppression interfacial polarization. The addition of glass phase fosters cations disorder and disrupts long-range ordering of BNT-NN ferroelectric phase yielding an enhancement in the relaxor degree. Furthermore, the elevation of grain resistance induced inhibition of interfacial polarization and bolstered the dielectric breakdown strength (<i>E</i><sub>b</sub>). The activation energy (<i>E</i><sub>a</sub>) was elevated from 0.033&#xa0;eV in pure BNT-NN to 0.075&#xa0;eV for BNT-NN based 2.5% of glass addition. Remarkable enhancement in energy storage density (<i>W</i><sub>rec</sub>) of 1.45&#xa0;J/cm<sup>3</sup>, superior energy storage efficiency (<i>η</i>) of 96.4%, and high figure of merit (<i>Q</i><sub>F</sub>) of 40.27&#xa0;J/cm<sup>3</sup> at room temperature were achieved. Moreover, excellent temperature stability across a broad temperature range up to 150&#xa0;°C was achieved in BNT-NN-based glass phase. This work offers a promising approach for generating high-performance glass–ceramic materials for advanced energy storage applications.</p>

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Improvement of energy storage performance and near-zero interfacial polarization of (Na0.5Bi0.5)TiO3-based via glass phase and cations disorder effect

  • 期刊论文

  • 发表日期：

    2026年7月1日

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  • Anwar Farag Ali,
  • A. A. Ebnalwaled,
  • Moukhtar A. Hassan,
  • Abd El-razek Mahmoud

摘要

This study demonstrates a successful strategy for designing 0.25(Na0.5Bi0.5)TiO3–0.75NaNbO3 (0.25BNT–0.75NN)-based 0.025 (Ba0.8Ca0.1)(Ti0.9Zr0.1)O3–0.1B2O3 (abbreviate BBCZT) (2.5% glass) phase for the enhancement of their energy storage properties and suppression interfacial polarization. The addition of glass phase fosters cations disorder and disrupts long-range ordering of BNT-NN ferroelectric phase yielding an enhancement in the relaxor degree. Furthermore, the elevation of grain resistance induced inhibition of interfacial polarization and bolstered the dielectric breakdown strength (Eb). The activation energy (Ea) was elevated from 0.033 eV in pure BNT-NN to 0.075 eV for BNT-NN based 2.5% of glass addition. Remarkable enhancement in energy storage density (Wrec) of 1.45 J/cm3, superior energy storage efficiency (η) of 96.4%, and high figure of merit (QF) of 40.27 J/cm3 at room temperature were achieved. Moreover, excellent temperature stability across a broad temperature range up to 150 °C was achieved in BNT-NN-based glass phase. This work offers a promising approach for generating high-performance glass–ceramic materials for advanced energy storage applications.