Microstructure and Dielectric Properties of Ti0.995(In0.5Nb0.5)0.005O2/SrO-B2O3-SiO2 Glass-ceramics for Energy Storage

被引：15

作者：

Yuan, Qibin ^{[1
]}

Wang, Yifei

Wang, Hong

机构：

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

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2017年 / 24卷 / 02期

基金：

美国国家科学基金会;

关键词：

Glass-ceramics; Ti-0.995(In0.5Nb0.5)(0.005)O-2; SrO-B2O3-SiO2; dielectric breakdown; energy storage; COLOSSAL PERMITTIVITY; IMPEDANCE SPECTROSCOPY; BREAKDOWN STRENGTH; GRAIN-SIZE; TITANATE; DENSITY;

D O I：

10.1109/TDEI.2017.005997

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Ti-0.995(In0.5Nb0.5)(0.005)O-2/SrO-B2O3-SiO2 glass-ceramics for dielectric energy storage applications were prepared and investigated. The optimal microstructure of the glass-ceramics has been achieved by adopting Ti-0.995(In0.5Nb0.5)(0.005)O-2 with colossal dielectric constant as grains and SrO-B2O3-SiO2 glass with high resistivity as grain boundaries. After the introduction of SrO-B2O3-SiO2 glass, it was found that the breakdown strength increased several times higher than that of pristine Ti-0.995(In0.5Nb0.5)(0.005)O-2 ceramics. Meanwhile, the energy density increased more than four times and energy efficiency is more than one time. An outstanding energy density of 1.55 J/cm(3) and a high energy efficiency of 70% for Ti-0.995(In0.5Nb0.5)(0.005)O-2 ceramic with 2 wt% SrO-B2O3-SiO2 glass were obtained at an electric field of 328.3 kV/cm, suggesting that this kind of glass-ceramic could be an attractive candidate for energy storage applications.

引用

页码：712 / 719

页数：8

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