Simultaneous enhancement of energy storage performance and thermal stability of NaNbO3-based ceramics via multi-scale modulation

被引：20

作者：

Nong, Peng ^{[1
]}

Zeng, Dafu ^{[1
]}

Pan, Yue ^{[1
]}

Dong, Qinpeng ^{[1
]}

Xu, Mingzhao ^{[1
]}

Wang, Xiang ^{[1
]}

Wang, Jiaming ^{[1
]}

Zhou, Huanfu ^{[1
]}

Li, Xu ^{[1
]}

Chen, Xiuli ^{[1
]}

机构：

[1] Guilin Univ Technol, Sch Mat Sci & Engn, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R China

来源：

JOURNAL OF MATERIOMICS | 2024年 / 10卷 / 03期

关键词：

Breakdown field strength; Lead-free ceramics; Energy storage; Power density; LEAD-FREE CERAMICS; RELAXOR ANTIFERROELECTRIC CERAMICS; PHASE-TRANSITION; POWER-DENSITY; EFFICIENCY;

D O I：

10.1016/j.jmat.2023.09.004

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：

More and more attention is being paid to the environmental friendliness of the dielectric capacitors, which have a rapid charging and discharging speed and steady operation. However, the low recoverable energy storage density (Wrec) limits the practical application of dielectric capacitors in solid-state energy storage devices. In this paper, (1-x) (0.92NaNbO3-0.08Bi(Mg0.5Ti0.5)O3)-xSrTiO3(x = 0.05, 0.10, 0.15, 0.20) energy storage ceramics were fabricated based on various strategies such as nanodomain engineering, component and grain size optimization. Thus excellent energy storage performance (Wrec - 6.0 J/cm3, h - 81.0%) was obtained in NN-BMT-0.15ST. SrTiO3 could enhance the internal disorder, improve the relaxation properties and increase the breakdown field strength of ceramics. Signifi-cantly domain relaxor behavior, as evidenced by Vogel-Fulcher (V-F) model, provides strong evidence for restraining early polarization saturation. In addition, Pulse charge/discharge tests have illustrated that the sample has excellent and stable charge/discharge performance (CD - 1,068.9 A/cm2, PD - 96.1 MW/cm3, t0.9 z 0.99 ms) It is concluded that there is a huge prospect of NN-BMT-0.15ST ceramics as a kind of pulsed-power-storing electronics. (c) 2023 The Authors. Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：670 / 681

页数：12

共 80 条

[41] Thermal-stability of the enhanced piezoelectric, energy storage and electrocaloric properties of a lead-free BCZT ceramic [J].