陶瓷
反铁电性
材料科学
电容器
储能
热稳定性
电场
复合材料
陶瓷电容器
工程物理
光电子学
电气工程
化学工程
电介质
电压
热力学
铁电性
物理
工程类
量子力学
功率(物理)
作者
Jingjing Tian,Yuecong Cao,Kun Xu,Minyuan Zhan,Danyang Zhang,Heng Tian,Bo Zhang,Yonghao Xu
标识
DOI:10.1016/j.materresbull.2023.112550
摘要
A new generation of environmentally benign NaNbO3 (NN)-based antiferroelectric ceramics have gained great interest in energy storage capacitors. Nevertheless, the low breakdown electric field (Eb) and high energy density loss in pure NN ceramic restrict the improvement of the energy storage property. A combined optimization strategy was implemented in this work, and ceramics of (1-x)NaNbO3-x(Bi1/2Li1/2)HfO3 (abbreviated as NN-xBLH, x = 0.00–0.18) were developed. BLH was initially introduced to stablize the AFE state and achieve the relaxor enhancement effect. Then, a viscous polymer rolling process (VPRP) was empolyed to obtain highly dense and ultra-thin ceramic disks with a thickness of ∼100 μm. Ultimately, at 560 kV/cm, a high Wrec of 7.1 J/cm3 and η of 85.9% were concurrently attained in the NN-0.18BLH ceramic. Meanwhile, the NN-0.18BLH ceramic displays improved thermal stability (25–120 °C). All of these findings show that the NN-0.18BLH ceramic is anticipated to be utilized in future energy storage applications.
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