A novel lead-free NaNbO3-Bi(Zn0.5Ti0.5)O3 ceramics system for energy storage application with excellent stability

被引：139

作者：

Shi, Ruike ^{[1
]}

Pu, Yongping ^{[1
]}

Wang, Wen ^{[1
]}

Guo, Xu ^{[1
]}

Li, Jingwei ^{[1
]}

Yang, Mengdie ^{[1
]}

Zhou, Shiyu ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Shaanxi Key Lab Green Preparat & Functionalizat I, Xian 710021, Shaanxi, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 815卷

基金：

中国国家自然科学基金;

关键词：

Lead-free; NaNbO3; Energy storage; Temperature stability; Charge-discharge; PHASE-TRANSITION; SODIUM NIOBATE; PERFORMANCE; DENSITY; BAZRO3;

D O I：

10.1016/j.jallcom.2019.152356

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：

Many researches have been referred to the AFE structure of NaNbO3 in order to develop high power energy storage for NaNbO3-based ceramic. However, the square P-E loops with large P,- was observed in NaNbO3 ceramics due to the coexistence of AFE and the field-induced metastable FE, which suppress the energy storage property of NaNbO3-based ceramics. In the present work, lead-free (1-x)NaNbO3-xBi(Zn0.5Ti0.5)O-3 (abbreviated as (1-x)NN-xBZT) dielectric ceramics were prepared via the traditional solid-state route. The structures, relaxor behavior and energy storage property of (1-x)NN-xBZT ceramics were investigated with the introduction of BZT. The slim P-E loops were obtained while x = 0.09-0.12 and the maximum discharge energy storage density (W-rec = 2.1 J/cm(3)) was obtained while x = 0.09, meanwhile a high energy storage efficiency (eta= 76%) was achieved. Moreover, the charge-discharge tests show that 0.91NN-0.09BZT ceramics can achieve fast discharge rate (50 ns) and exhibit excellent stabilities of temperature and electric field, which guarantee the application prospect of 0.91NN-0.09BZT ceramics for lead-free plus power system in a wide temperature range. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：8

共 45 条

[1] STRUCTURES OF SODIUM NIOBATE BETWEEN 480 DEGREES AND 575 DEGREES C, AND THEIR RELEVANCE TO SOFT-PHONON MODES [J].