Lead-free antiferroelectric niobates AgNbO3 and NaNbO3 for energy storage applications
Lead-free antiferroelectric niobates AgNbO3 and NaNbO3 for energy storage applications
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DOI：
10.1039/d0ta08345c
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发表时间：
2020-11
影响因子：
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通讯作者：
Dong Yang;Jing Gao;Liang Shu;Yi‐Xuan Liu;J. Yu;Yuanyuan Zhang;Xuping Wang;Boping Zhang
中科院分区：
文献类型：
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作者：
Dong Yang;Jing Gao;Liang Shu;Yi‐Xuan Liu;J. Yu;Yuanyuan Zhang;Xuping Wang;Boping Zhang
反铁电体材料在储能领域具有广泛的应用前景，在电力电子领域正变得越来越重要。无铅NbO_3银(AgNbO_3)和NaNbO_3(NaNbO_3)反铁电陶瓷作为环境友好型储能材料的候选材料引起了人们的极大兴趣。本文概述了反铁电性的基本背景，介绍了反铁电性的定义，反铁电材料的历史研究进展，以及一些先进的结构表征技术。同时，重点介绍了以AgNbO_3和NaNbO_3为代表的无铅反铁电陶瓷在晶体结构、相变和潜在的介电储能应用方面的最新进展。具体而言，从科学的角度探讨了储能性能提高的原因。然后总结了改进的方法，为进一步提高储能性能的新策略的开发奠定了基础。本文最后讨论了无铅反铁电体进一步发展的剩余挑战和机遇。
Antiferroelectric materials are attractive for energy storage applications and are becoming increasingly important for power electronics. Lead-free silver niobate (AgNbO3) and sodium niobate (NaNbO3) antiferroelectric ceramics have attracted intensive interest as promising candidates for environmentally friendly energy storage products. This review provides the fundamental background of antiferroelectricity with an introduction to the definition of antiferroelectricity, historical research evolution of antiferroelectric materials, and some advanced techniques for structural characterization. Meanwhile, recent progress on lead-free antiferroelectric ceramics, represented by AgNbO3 and NaNbO3, is highlighted in terms of their crystal structures, phase transitions and potential dielectric energy storage applications. Specifically, the origin of the enhanced energy storage performance is discussed from a scientific point of view. The modification approaches are then summarized for the development of new strategies to further improve the energy storage performance. This article concludes with a discussion of the remaining challenges and opportunities for further development of lead-free antiferroelectrics.