Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics

doi:10.1111/jace.17415

SIC OpenIR

	Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics
	Chao, WN; Yang, TQ; Li, YX; Liu, ZF
	2020-09-01
Source Publication	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
Subtype	Article; Early Access
Abstract	Ca and Ta co-doped AgNbO(3)antiferroelectric lead-free ceramics were fabricated by rolling process technique, and improved energy storage properties were obtained. X-ray diffraction and Raman spectra indicate a single perovskite structure for (Ag1-2xCax)(Nb1-xTax)O(3)ceramics. The dielectric performances were also investigated, showing that increasing the content of Ca and Ta from 0.1 to 5 mol% gradually decreased the temperatures of the phase transition of monoclinic M-1-M(2)and M-2-M-3. This proved the enhanced antiferroelectricity stability associated with the enlarged low temperature phase transition region. The obtained (Ag0.90Ca0.05)(Nb0.95Ta0.05)O(3)ceramics exhibit an enhanced recoverable energy storage density (3.36 J/cm(3)) and efficiency (58.3%) with good temperature and frequency stability. The same composition shows excellent charge and discharge properties with a discharge current as high as 91.5 A and fast discharge speed (150 ns discharge period). All these merits demonstrate that AgNbO3-based antiferroelectric ceramics are competitive with other lead-based and lead-free dielectric capacitors, which are promising candidates for dielectric energy storage applications.
DOI	10.1111/jace.17415
WOS Keyword	FREE ANTIFERROELECTRIC CERAMICS ; FERROELECTRIC PHASE-TRANSITION ; PERFORMANCE ; RAMAN
Language	英语
WOS Research Area	Materials Science
Publisher	WILEY
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27789
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Chao, WN,Yang, TQ,Li, YX,et al. Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020.
APA	Chao, WN,Yang, TQ,Li, YX,&Liu, ZF.(2020).Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics.JOURNAL OF THE AMERICAN CERAMIC SOCIETY.
MLA	Chao, WN,et al."Enhanced energy storage density in Ca and Ta co-doped AgNbO(3)antiferroelectric ceramics".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2020).

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院上海硅酸盐研究所机构知识库