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

被引：4
|
作者：
Zhang, Hao [1 ,2 ]
Zhu, Zhe [1 ]
Yao, Zhonghua [1 ,2 ]
Hao, Hua [1 ,2 ]
Wang, Lingyun [3 ]
Cao, Minghe [1 ]
Liu, Hanxing [1 ,2 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Sanya Sci & Educ Innovat Pk, Sanya 572000, Peoples R China
[3] CAEP, Inst Fluid Phys, Mianyang 621900, Peoples R China
来源：
CRYSTALS | 2023年 / 13卷 / 01期
关键词：
ceramics; perovskites; dielectrics; energy storage; lead-free ceramics; LEAD-FREE CERAMICS; DENSITY; EFFICIENCY; PERMITTIVITY; POLARIZATION;
D O I：
10.3390/cryst13010084
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
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)O-3-0.6BaTiO(3) (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/cm(3) and good temperature stability of less than 10% over 20-160 degrees C. Moreover, the samples provide stable cycling fatigue after 10(5) cycles and a fast discharge time of t(0.9) < 0.1 mu s, indicative of promising applications in energy units.
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页数：11
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