High recoverable energy storage density in nominal (0.67-x) BiFeO3-0.33BaTiO3-xBaBi2Nb2O9 lead-free composite ceramics

被引：49

作者：

Bai, Xingzhi ^{[1
]}

Chen, Zhiteng ^{[1
]}

Zheng, Peng ^{[1
]}

Bai, Wangfeng ^{[2
]}

Zhang, Jingji ^{[3
]}

Li, Lili ^{[1
]}

Wen, Fei ^{[1
]}

Zheng, Liang ^{[1
]}

Zhang, Yang ^{[1
]}

机构：

[1] Hangzhou Dianzi Univ, Dept Elect Sci & Technol, Lab Nanoelect & NanoDevices, Hangzhou 310018, Peoples R China

[2] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China

[3] China Jiliang Univ, Coll Mat & Chem, Hangzhou 310018, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 16期

关键词：

Lead-free ceramics; Energy storage materials; Relaxor ferroelectric; Bismuth ferrite; Composite ceramics; RELAXOR FERROELECTRIC CERAMICS; DISCHARGE PROPERTIES; PIEZOELECTRIC PROPERTIES; DIELECTRIC-PROPERTIES; BREAKDOWN STRENGTH; PHASE-TRANSITION; PERFORMANCE; EFFICIENCY; NB; MICROSTRUCTURE;

D O I：

10.1016/j.ceramint.2021.05.025

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A series of novel lead-free energy storage ceramics, (0.67-x)BiFeO3-0.33BaTiO3-xBaBi2Nb2O9 (BF-BT-xBBN), were fabricated by traditional solid-state reaction, where bismuth layer-structured BaBiNb2O9 was incorporated into perovskite-structured BiFeO3-BaTiO3 ceramic as an additive. The addition of BaBi2Nb2O9 increased the relaxor behavior and breakdown strength of BF-BT ceramics due to the formation of polar nanoregionals (PNRs), inducing enhanced energy storage performance. The composite ceramics, with x = 0.08, showed a large recoverable energy density (Wrec) of 3.08 J/cm3 and an outstanding energy storage efficiency (q) of 85.57% under an applied electric field of 230 kV/cm. Moreover, the composite ceramics exhibited excellent thermal stability and high stability toward different frequencies in a temperature range of 20-100 degrees C and a frequency range of 0.1-1500 Hz. These results demonstrate great potential of novel BF-BT-xBBN composite ceramics for next-generation energy storage applications.

引用

页码：23116 / 23123

页数：8

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