Improvement of dielectric and energy storage properties in Sr0.85Bi0.1ZrO3 modified (Bi0.5Na0.5)0.7Sr0.3TiO3 lead-free ceramics

被引：20

作者：

Zhang, Fanbo ^{[1
]}

Dai, Zhonghua ^{[1
]}

Liu, Weiguo ^{[1
]}

Wei, Yongxing ^{[2
]}

Xi, Zengzhe ^{[2
]}

Ren, Xiaobing ^{[3
,4
,5
]}

机构：

[1] Xian Technol Univ, Shaanxi Prov Key Lab Thin Films Technol & Opt Tes, Xian 710032, Peoples R China

[2] Xian Technol Univ, Sch Mat & Chem Engn, Shaanxi Key Lab Optoelect Funct Mat & Devices, Xian 710032, Peoples R China

[3] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China

[4] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[5] Natl Inst Mat Sci, Ctr Funct Mat, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 908卷

基金：

中国国家自然科学基金;

关键词：

Lead-free ceramics; Energy density; Energy efficiency; Charge discharge performances; BNT-BASED CERAMICS; DENSITY; EFFICIENCY; CAPACITORS; DISCHARGE; PERFORMANCES; STABILITY;

D O I：

10.1016/j.jallcom.2022.164577

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In recent years, with the rapid development of electronic components industry, higher requirements are put forward for energy storage density and efficiency of pulse power capacitors. In this work, the improved energy storage density and efficiency of (Bi0.5Na0.5)(0.7)Sr0.3TiO3 (BNST)-based ceramics have been obtained by introducing the Sr0.85Bi0.1ZrO3(SBZ). The addition of SBZ reduced phase transition temperature to about 50 degrees C, accompanied by relaxation enhancement. A high recoverable energy density (W-rec = 3.53 J/cm(3)) and energy efficiency (eta = 87.15%) were synchronously achieved in 0.875BNST-0.125SBZ ceramic under 270 kV/cm. Moreover, excellent temperature stability (20-120 degrees C) and frequency stability (5-200 Hz) for energy storage have been achieved at 150 kV/cm. A power density (P-D) of 7.32 MW/cm(3) and the transitory discharge time (t(0.9) = 0.86 mu s) were achieved for 0.875BNST-0.125SBZ ceramics under 120 kV/cm. These characteristics indicate that 0.875BNST-0.125SBZ ceramic is expected to be applied in high-power equipment. (C) 2022 Elsevier B.V. All rights reserved.

引用

页数：7

共 64 条

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