Boosting the Energy Storage Performances of Dy <sub>2</sub> O <sub>3</sub> -modified Pb <sub>0.95</sub> La <sub>0.02</sub> Ca <sub>0.03</sub> (Zr <sub>0.6</sub> Sn <sub>0.4</sub> ) <sub>0.995</sub> O <sub>3</sub> Antiferroelectric Ceramics via the Gr

Antiferroelectric (AFE) ceramics exhibit significant potential for high-performance energy storage applications due to their distinctive field-induced AFE-ferroelectric (FE) phase transitions. However, the energy storage performance is often severely limited by the insufficient breakdown electric strength (BDS) caused by coarse-grained microstructures. In this work, <i>x</i> wt % Dy<sub>2</sub>O<sub>3</sub>-modified Pb<sub>0.95</sub>La<sub>0.02</sub>Ca<sub>0.03</sub>(Zr<sub>0.6</sub>Sn<sub>0.4</sub>)<sub>0.995</sub>O<sub>3</sub> (PLCZS) AFE ceramics (D<sub><i>x</i></sub>, <i>x</i> = 0, 0.2, 0.4, 0.6) were designed to enhance the BDS by utilizing the grain boundary effect. The BDS value increases from 580 kV·cm<sup>-1</sup> to 750 kV·cm<sup>-1</sup> as the Dy<sub>2</sub>O<sub>3</sub> content is raised from 0 to 0.2 wt %. The D<sub>0.2</sub> ceramic exhibits a recoverable energy density (<i>W</i><sub>rec</sub>) of 18.36 J·cm<sup>-3</sup> and an energy storage efficiency (η) of 86.39%. Moreover, the D<sub>0.2</sub> ceramic demonstrates outstanding cycling stability with variations in <i>W</i><sub>rec</sub> and η of less than 1.0% over 10<sup>6</sup> cycles at 500 kV·cm<sup>-1</sup>. It achieves a high discharge energy density (<i>W</i><sub>dis</sub>) of 14.32 J·cm<sup>-3</sup> and an ultrafast discharge time (<i>t</i><sub>0.9</sub>) of 36 ns under 650 kV·cm<sup>-1</sup>. This ceramic also obtains a high current density (<i>C</i><sub>D</sub>) of 2624 A·cm<sup>-2</sup> and a high power density (<i>P</i><sub>D</sub>) of 879 MW·cm<sup>-3</sup>. These outstanding results not only confirm the efficacy of Dy<sub>2</sub>O<sub>3</sub> doping in enhancing energy storage performance but also underscore the great promise of the modified PLCZS antiferroelectric ceramics for advanced pulsed power applications.

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Journal
ACS Applied Materials & Interfaces
Published
2026-02-04
DOI
https://doi.org/10.1021/acsami.5c18629
Primary Topic
Ferroelectric and Piezoelectric Materials
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article
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Boosting the Energy Storage Performances of Dy 2 O 3 -modified Pb 0.95 La 0.02 Ca 0.03 (Zr 0.6 Sn 0.4 ) 0.995 O 3 Antiferroelectric Ceramics via the Gr

Yong Li, Chunxiao Lü, Ningning Sun, Liwen Zhang et al.
ACS Applied Materials & Interfaces
Ferroelectric and Piezoelectric Materials
article

Boosting the Energy Storage Performances of Dy 2 O 3 -modified Pb 0.95 La 0.02 Ca 0.03 (Zr 0.6 Sn 0.4 ) 0.995 O 3 Antiferroelectric Ceramics via the Gr

Yong Li, Chunxiao Lü, Ningning Sun, Liwen Zhang, Rong Ma, Ye Zhao, Xiangjun Meng, Lei Cao, Yu Guo
article en

Abstract

Antiferroelectric (AFE) ceramics exhibit significant potential for high-performance energy storage applications due to their distinctive field-induced AFE-ferroelectric (FE) phase transitions. However, the energy storage performance is often severely limited by the insufficient breakdown electric strength (BDS) caused by coarse-grained microstructures. In this work, <i>x</i> wt % Dy<sub>2</sub>O<sub>3</sub>-modified Pb<sub>0.95</sub>La<sub>0.02</sub>Ca<sub>0.03</sub>(Zr<sub>0.6</sub>Sn<sub>0.4</sub>)<sub>0.995</sub>O<sub>3</sub> (PLCZS) AFE ceramics (D<sub><i>x</i></sub>, <i>x</i> = 0, 0.2, 0.4, 0.6) were designed to enhance the BDS by utilizing the grain boundary effect. The BDS value increases from 580 kV·cm<sup>-1</sup> to 750 kV·cm<sup>-1</sup> as the Dy<sub>2</sub>O<sub>3</sub> content is raised from 0 to 0.2 wt %. The D<sub>0.2</sub> ceramic exhibits a recoverable energy density (<i>W</i><sub>rec</sub>) of 18.36 J·cm<sup>-3</sup> and an energy storage efficiency (η) of 86.39%. Moreover, the D<sub>0.2</sub> ceramic demonstrates outstanding cycling stability with variations in <i>W</i><sub>rec</sub> and η of less than 1.0% over 10<sup>6</sup> cycles at 500 kV·cm<sup>-1</sup>. It achieves a high discharge energy density (<i>W</i><sub>dis</sub>) of 14.32 J·cm<sup>-3</sup> and an ultrafast discharge time (<i>t</i><sub>0.9</sub>) of 36 ns under 650 kV·cm<sup>-1</sup>. This ceramic also obtains a high current density (<i>C</i><sub>D</sub>) of 2624 A·cm<sup>-2</sup> and a high power density (<i>P</i><sub>D</sub>) of 879 MW·cm<sup>-3</sup>. These outstanding results not only confirm the efficacy of Dy<sub>2</sub>O<sub>3</sub> doping in enhancing energy storage performance but also underscore the great promise of the modified PLCZS antiferroelectric ceramics for advanced pulsed power applications.

ACS Applied Materials & InterfacesVol. 18(6)
Ministry of Industry and Trade (CZ), Mongolian University of Science and Technology (MN), Advanced Materials and Devices (United States) (US), Hunan Rare Earth Metal Material Research Institute (CN), Inner Mongolia University of Technology (CN)
Affordable and clean energy
Openalex Percentile: Top 67%
Ferroelectric and Piezoelectric Materials
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