Enhanced Energy Storage Properties of Bi0.5Na0.5TiO3‐Based Ceramics via Introducing Na0.95Ca0.04Li0.01Nb0.96Zr0.04O3

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Physica Status Solidi A-applications and Materials Science Pub Date : 2024-07-05 DOI:10.1002/pssa.202400430

Hua Qiang, Lingyun Deng, Zunping Xu

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Abstract

Lead‐free ceramic capacitors with high energy storage density are desired. Herein, the novel (1–x)(0.9Bi0.5Na0.5TiO3‐0.1SrTi0.85Zr0.15O3)‐xNa0.95Ca0.04Li0.01Nb0.96Zr0.04O3 [(1–x)(BNT‐STZ)‐xCZNNL, x = 0.1, 0.2, 0.3, 0.4 and 0.5] ceramics are prepared via citrate combustion technology and two‐step sintering method. The dense microstructures are observed and slim hysteresis loops are realized as addition of CZNNL. The enhanced recoverable energy storage density (W re of 2.52 J cm−3) with high efficiency (η of 80%) is obtained in 0.6(BNT‐STZ)‐0.4CZNNL ceramic under a moderate electric field of 200 kV cm−1. Moreover, excellent thermal stability (W re varies <1% and η varies <3.5%) at 20 to 100 °C) and excellent fatigue resistance are achieved for 0.6(BNT‐STZ)‐0.4CZNNL ceramic.

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通过引入 Na0.95Ca0.04Li0.01Nb0.96Zr0.04O3 增强 Bi0.5Na0.5TiO3 基陶瓷的储能特性

人们需要具有高能量存储密度的无铅陶瓷电容器。本文通过柠檬酸盐燃烧技术和两步烧结法制备了新型 (1-x)(0.9Bi0.5Na0.5TiO3-0.1SrTi0.85Zr0.15O3)-xNa0.95Ca0.04Li0.01Nb0.96Zr0.04O3[(1-x)(BNT-STZ)-xCZNNL，x = 0.1、0.2、0.3、0.4 和 0.5]陶瓷。观察到致密的微观结构，并发现添加 CZNNL 后实现了纤细的滞后环。在 200 kV cm-1 的中等电场下，0.6(BNT-STZ)-0.4CZNNL 陶瓷获得了更高的可回收储能密度（W re 为 2.52 J cm-3）和更高的效率（η 为 80%）。此外，0.6(BNT-STZ)-0.4CZNNL 陶瓷还具有出色的热稳定性（W re 在 20 至 100 °C 温度范围内变化 1%，η 变化 3.5%）和抗疲劳性。

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.