Effect of rare earth oxides on the energy storage performance of Sr0.7Bi0.2TiO3 ceramics

被引：0
|
作者：
Chen, Jingjing [1 ,2 ]
Zhao, Peng [3 ]
Si, Feng [1 ,2 ]
Zhang, Shuren [1 ,2 ]
Tang, Bin [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Engn Res Ctr Electromagnet Radiat Control Ma, Chengdu 611731, Peoples R China
[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 611731, Peoples R China
[3] Taiyuan Univ Technol, Coll Elect Informat & Opt Engn, Taiyuan 030024, Peoples R China
来源：
12TH GLOBAL CONFERENCE ON MATERIALS SCIENCE AND ENGINEERING, CMSE 2023 | 2024年 / 2680卷
关键词：
CHARGE-DISCHARGE; STRATEGY; DENSITY;
D O I：
10.1088/1742-6596/2680/1/012009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, Sr0.7Bi0.2TiO3 (SBT) ceramics doped with Y2O3, Dy2O3 and Gd2O3 rare earth oxides were designed and prepared by the conventional solid-state reaction method. The results show that all ceramics exhibit typical relaxor ferroelectric behavior, and the breakdown strength (BDS) of SBT ceramics is improved. Among them, Sr0.7Bi0.15Y0.05TiO3 ceramics demonstrate excellent energy storage performance, with a high recoverable energy density (W-rec) of 2.4 J/cm(3) and an efficiency (eta) of 88.1% under 290 kV/cm. Furthermore, Y2O3-doped SBT ceramics exhibit a rapid discharge speed of 0.05 mu s and a high power density (P-D) of 144.1 MW/cm(3) under 300 kV/cm in charge-discharge tests. These characteristics have significant potential in pulse power applications.
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页数：6
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