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On the Enhancement of Energy Storage Performance in Modified Relaxor Ferroelectric Ceramics for Pulsed Power Applications

Authors :
Hao Zhang
Zhe Zhu
Zhonghua Yao
Hua Hao
Lingyun Wang
Minghe Cao
Hanxing Liu
Source :
Crystals, Vol 13, Iss 1, p 84 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Relaxor-type ferroelectrics show important potential in energy storage fields due to their significantly enhanced energy performance and good temperature stability compared to normal ferroelectrics. Here, a novel, high-performance ternary composition, (0.4−x)BiFeO3-xBi(Mg1/2Ti1/2)O3–0.6BaTiO3 (x = 0.2, 0.25, 0.3, 0.35, 0.4), was designed by compositional modulation, which displays typical relaxor characteristics. The optimum energy storage properties can be attained at x = 0.35, accompanied by energy efficiency of 84.87%, a promising energy storage density of 2.3 J/cm3 and good temperature stability of less than 10% over 20–160 °C. Moreover, the samples provide stable cycling fatigue after 105 cycles and a fast discharge time of t0.9 < 0.1 μs, indicative of promising applications in energy units.

Details

Language :
English
ISSN :
20734352
Volume :
13
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Crystals
Publication Type :
Academic Journal
Accession number :
edsdoj.9973db1217d947409d8214ae24a9b669
Document Type :
article
Full Text :
https://doi.org/10.3390/cryst13010084