Superior energy storage performance in Pb0.97La0.02(Zr-0.50 Sn0.43Ti0.07)O-3 antiferroelectric ceramics
Superior energy storage performance in Pb0.97La0.02(Zr-0.50 Sn0.43Ti0.07)O-3 antiferroelectric ceramics
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Pb0.97La0.02(Zr0.50Sn0.43Ti0.07)O3反铁电陶瓷优异的储能性能
DOI：
10.1016/j.jmrt.2019.05.020
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发表时间：
2019
影响因子：
6.4
通讯作者：
He Yunbin
中科院分区：
文献类型：
--
作者：
Xu Haojie;Dan Yu;Zou Kailun;Chen Guang;Zhang Qingfeng;Lu Yinmei;He Yunbin
为了开发具有优异储能能力的反铁电介质电容器，反铁电材料必须同时具有大的可回收能量密度和高能量效率。在此动机下，本工作考虑到Sn元素可以缩小电滞回线，从而提高能量密度和效率，设计并制备了高Sn含量的Pb0.97La0.02(Zr0.50Sn0.43Ti0.07) o3反铁电陶瓷。实验结果表明，该陶瓷可同时实现3.47 J/cm3的室温可回收能量密度和78%的高能效。在20 ~ 120℃的宽温度范围内，可回收能量密度和能量效率均表现出较好的温度稳定性。在较宽的温度范围内，Pb0.97La0.02(Zr0.50Sn0.43Ti0.07) o3反铁电陶瓷具有较高的可回收能量密度和高能量效率，是制备各种条件下脉冲功率电容器的理想材料。
To develop antiferroelectric based dielectric capacitors with superior energy storage capacity, antiferroelectric materials must possess simultaneously large recoverable energy density and high energy efficiency. With this motivation, in this work, we design and prepare Pb0.97La0.02(Zr0.50Sn0.43Ti0.07)O3antiferroelectric ceramics with high Sn content considering that Sn element can narrow the electric hysteresis loops and thus improve the energy density and efficiency. The experiment results indicate that a large room-temperature recoverable energy density of 3.47 J/cm3and a high energy efficiency of 78% are realized simultaneously in this kind of ceramic. Besides, in the wide temperature range of 20–120 °C, the recoverable energy density and the energy efficiency both show superior temperature stability. The large recoverable energy density and high energy efficiency in a wide temperature range demonstrate that the Pb0.97La0.02(Zr0.50Sn0.43Ti0.07)O3antiferroelectric ceramic is a good candidate for preparing pulse power capacitors usable in various conditions.