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<p>Antiferroelectric ceramics are promising for next-generation electrostatic energy storage, yet their performance is fundamentally constrained by the trade-off between high energy storage efficiency (<i>η</i>) and large recoverable energy storage density (<i>W</i><sub>rec</sub>), arising from the antiferroelectric-to-ferroelectric phase transition and associated hysteresis loss. Here, we show that a combination of engineered local polarization disorder and high-field operability enables a highly favorable balance of these metrics. In PbZrO<sub>3</sub>-based ceramics, we introduced controlled compositional heterogeneity that broadens polarization vector distributions while preserving the antiferroelectric modulation. Phase-field simulations and experiments indicate that this engineered disorder spatially distributes the switching fields associated with the antiferroelectric–ferroelectric transition, thereby reducing polarization hysteresis while maintaining high polarization strength. As a result, the multilayer ceramic capacitors achieve <i>W</i><sub>rec</sub> = 23.2 J cm<sup>−3</sup> and <i>η</i> = 98.1% at 167 kV mm<sup>−1</sup>, corresponding to a figure of merit of 1220, surpassing most reported state-of-the-art multilayer ceramic capacitors under comparable high-field conditions. These findings highlight local polarization disorder as a key mechanism that, in combination with enhanced breakdown strength, enables ultrahigh energy storage performance and offers a promising route toward high-performance capacitive energy storage for advanced pulsed-power applications.</p>

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Engineered local polarization disorder unlocks record efficiency in antiferroelectric capacitors

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月22日

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  • Fukang Chen,
  • Leiyang Zhang,
  • Yule Yang,
  • Ruiyi Jing,
  • Yunyao Huang,
  • Kaiyuan Liu,
  • Zibin Chen,
  • Liqiang He,
  • Dong Wang,
  • Bin Zhou,
  • Xuefeng Chen,
  • Gang Liu,
  • Hua Tan,
  • Haibo Zhang,
  • Jun Yang,
  • Shujun Zhang,
  • Li Jin

摘要

Antiferroelectric ceramics are promising for next-generation electrostatic energy storage, yet their performance is fundamentally constrained by the trade-off between high energy storage efficiency (η) and large recoverable energy storage density (Wrec), arising from the antiferroelectric-to-ferroelectric phase transition and associated hysteresis loss. Here, we show that a combination of engineered local polarization disorder and high-field operability enables a highly favorable balance of these metrics. In PbZrO3-based ceramics, we introduced controlled compositional heterogeneity that broadens polarization vector distributions while preserving the antiferroelectric modulation. Phase-field simulations and experiments indicate that this engineered disorder spatially distributes the switching fields associated with the antiferroelectric–ferroelectric transition, thereby reducing polarization hysteresis while maintaining high polarization strength. As a result, the multilayer ceramic capacitors achieve Wrec = 23.2 J cm−3 and η = 98.1% at 167 kV mm−1, corresponding to a figure of merit of 1220, surpassing most reported state-of-the-art multilayer ceramic capacitors under comparable high-field conditions. These findings highlight local polarization disorder as a key mechanism that, in combination with enhanced breakdown strength, enables ultrahigh energy storage performance and offers a promising route toward high-performance capacitive energy storage for advanced pulsed-power applications.