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Enhanced energy storage properties in sodium bismuth titanate- based ceramics for dielectric capacitor applications
Wu, Yichen; Fan, Yuzhu; Liu, Ningtao; Peng, Ping; Zhou, Mingxing; Yan, Shiguang; Cao, Fei; Dong, Xianlin; Wang, Genshui
2019-06-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY C
ISSN2050-7526
Volume7Issue:21Pages:6222
SubtypeArticle
AbstractThere are imperious demands for developing eco-benign energy storage materials with high-performance in a sustainable society. In this paper, we introduce Sr0.85Bi0.1& 0.05TiO3 (SBT) and NaNbO3 (NN) into Bi0.5Na0.5TiO3 (BNT) ceramics through compositional design. The introduction of Sr2+ ions and vacancies at the A-sites constructs relaxor ferroelectrics according to order-disorder theory. The introduction of Nb5+ ions at the B-sites is confirmed to have two major implications. In oneway, it boosts a higher induced polarization due to its intrinsic larger polarizability and overall stronger degree of diffuseness. In another, it contributes to forming a core-shell microstructure, as proven using transmission electron microscopy, promoting the breakdown strength (BDS) to a higher level. With the above strategies, our BNT-SBT-4NN ceramics demonstrate excellent energy storage performances with simultaneously ultrahigh energy storage density (W B 3.78 J cm 3), recoverable energy storage density (WrecB3.08 J cm 3) and efficiency (81.4%). Furthermore, the ceramics possess excellent discharge energy density (Wd = 0.854 J cm 3) and rapid discharge speed (t0.9 B 100 ns) in a wide temperature range, proving their high application potential. Our results break through the bottleneck of BNT-based ferroelectrics with a general recoverable energy storage density of lower than 3 J cm 3, making the BNT-SBT-4NN ceramic a powerful candidate material for use in energy storage applications.
DOI10.1039/c9tc01239g
Language英语
WOS Research AreaMaterials Science ; Physics
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:49[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27058
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wu, Yichen,Fan, Yuzhu,Liu, Ningtao,et al. Enhanced energy storage properties in sodium bismuth titanate- based ceramics for dielectric capacitor applications[J]. JOURNAL OF MATERIALS CHEMISTRY C,2019,7(21):6222.
APA Wu, Yichen.,Fan, Yuzhu.,Liu, Ningtao.,Peng, Ping.,Zhou, Mingxing.,...&Wang, Genshui.(2019).Enhanced energy storage properties in sodium bismuth titanate- based ceramics for dielectric capacitor applications.JOURNAL OF MATERIALS CHEMISTRY C,7(21),6222.
MLA Wu, Yichen,et al."Enhanced energy storage properties in sodium bismuth titanate- based ceramics for dielectric capacitor applications".JOURNAL OF MATERIALS CHEMISTRY C 7.21(2019):6222.
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