在a位掺杂La3+提高了bnt基无铅储能陶瓷的储能密度

IF 3.1 4区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yanchun Hu, Ying Zhao, Wenke Ma, Xianwei Wang
{"title":"在a位掺杂La3+提高了bnt基无铅储能陶瓷的储能密度","authors":"Yanchun Hu,&nbsp;Ying Zhao,&nbsp;Wenke Ma,&nbsp;Xianwei Wang","doi":"10.1016/j.cap.2025.09.023","DOIUrl":null,"url":null,"abstract":"<div><div>As an important energy storage device, dielectric capacitor plays an irreplaceable role in modern electronic and power systems because of its characteristics of fast charging, high output, long life and high temperature stability. Among various dielectric materials, Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-based energy storage ceramics with high saturation polarization are limited due to high conductivity and high residual polarization. In this paper, Bi<sub>(0.5-x)</sub>Na<sub>0.5</sub>La<sub>x</sub>TiO<sub>3</sub> (denoted as BNL<sub>x</sub>T) ceramic was prepared by solid state reaction method. By introducing La<sup>3+</sup> at A position, the Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-based lead-free ceramic was modified to improve its relaxation characteristics and breakdown strength, so as to achieve the purpose of increasing energy storage density and energy storage efficiency. The introduction of La<sup>3+</sup> at A position creates a wide temperature platform between dielectric anomalies, indicating that La<sup>3+</sup> can effectively induce the relaxation characteristics of BNT ceramics. The breakdown strength is increased from 136 kV/cm of pure BNT ceramics to 198 kV/cm of Bi<sub>0.455</sub>Na<sub>0.5</sub>La<sub>0.045</sub>TiO<sub>3</sub> ceramics, which is 1.46 times higher than before. The residual polarization decreased from 49.24 μC/cm<sup>2</sup> to 35.29 μC/cm<sup>2</sup>, and the effective energy storage density increased from 0.80J/cm<sup>3</sup> to 2.07J/cm<sup>3</sup>, an increase of 2.58 times than before. In addition, the energy storage efficiency achieved a transformation of 10.39 %–26.87 %, which is 2.59 times higher than pure BNT. The results show that La<sup>3+</sup> can effectively induce the relaxation characteristics of BNT ceramics, improve the effective energy storage density and energy storage efficiency, and is a good dopant to optimize the energy storage performance of BNT-based ceramics, providing feasibility for optimizing the energy storage performance of BNT-based ceramics.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 204-212"},"PeriodicalIF":3.1000,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"La3+ doped at A-position improves the energy storage density of BNT-based lead-free energy storage ceramics\",\"authors\":\"Yanchun Hu,&nbsp;Ying Zhao,&nbsp;Wenke Ma,&nbsp;Xianwei Wang\",\"doi\":\"10.1016/j.cap.2025.09.023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>As an important energy storage device, dielectric capacitor plays an irreplaceable role in modern electronic and power systems because of its characteristics of fast charging, high output, long life and high temperature stability. Among various dielectric materials, Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-based energy storage ceramics with high saturation polarization are limited due to high conductivity and high residual polarization. In this paper, Bi<sub>(0.5-x)</sub>Na<sub>0.5</sub>La<sub>x</sub>TiO<sub>3</sub> (denoted as BNL<sub>x</sub>T) ceramic was prepared by solid state reaction method. By introducing La<sup>3+</sup> at A position, the Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-based lead-free ceramic was modified to improve its relaxation characteristics and breakdown strength, so as to achieve the purpose of increasing energy storage density and energy storage efficiency. The introduction of La<sup>3+</sup> at A position creates a wide temperature platform between dielectric anomalies, indicating that La<sup>3+</sup> can effectively induce the relaxation characteristics of BNT ceramics. The breakdown strength is increased from 136 kV/cm of pure BNT ceramics to 198 kV/cm of Bi<sub>0.455</sub>Na<sub>0.5</sub>La<sub>0.045</sub>TiO<sub>3</sub> ceramics, which is 1.46 times higher than before. The residual polarization decreased from 49.24 μC/cm<sup>2</sup> to 35.29 μC/cm<sup>2</sup>, and the effective energy storage density increased from 0.80J/cm<sup>3</sup> to 2.07J/cm<sup>3</sup>, an increase of 2.58 times than before. In addition, the energy storage efficiency achieved a transformation of 10.39 %–26.87 %, which is 2.59 times higher than pure BNT. The results show that La<sup>3+</sup> can effectively induce the relaxation characteristics of BNT ceramics, improve the effective energy storage density and energy storage efficiency, and is a good dopant to optimize the energy storage performance of BNT-based ceramics, providing feasibility for optimizing the energy storage performance of BNT-based ceramics.</div></div>\",\"PeriodicalId\":11037,\"journal\":{\"name\":\"Current Applied Physics\",\"volume\":\"80 \",\"pages\":\"Pages 204-212\"},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2025-09-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Applied Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1567173925002020\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Applied Physics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1567173925002020","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

介质电容器作为一种重要的储能器件,以其快速充电、高输出、长寿命、高温稳定等特点,在现代电子和电力系统中发挥着不可替代的作用。在各种介电材料中,高饱和极化的bi0.5 na0.5 tio3基储能陶瓷由于电导率高、残余极化高而受到限制。本文采用固相反应法制备了Bi(0.5-x)Na0.5LaxTiO3 (BNLxT)陶瓷。通过在A位引入La3+,对bi0.5 na0.5 tio3基无铅陶瓷进行改性,改善其弛豫特性和击穿强度,从而达到提高储能密度和储能效率的目的。在A位置引入La3+,在介电异常之间形成了宽的温度平台,表明La3+可以有效诱导BNT陶瓷的弛豫特性。击穿强度由纯BNT陶瓷的136 kV/cm提高到Bi0.455Na0.5La0.045TiO3陶瓷的198 kV/cm,提高了1.46倍。剩余极化从49.24 μC/cm2降低到35.29 μC/cm2,有效储能密度从0.80J/cm3增加到2.07J/cm3,提高了2.58倍。此外,储能效率实现了10.39% - 26.87%的转化,是纯BNT的2.59倍。结果表明,La3+能有效诱导BNT陶瓷的弛豫特性,提高有效储能密度和储能效率,是优化BNT基陶瓷储能性能的良好掺杂剂,为优化BNT基陶瓷储能性能提供了可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

La3+ doped at A-position improves the energy storage density of BNT-based lead-free energy storage ceramics

La3+ doped at A-position improves the energy storage density of BNT-based lead-free energy storage ceramics
As an important energy storage device, dielectric capacitor plays an irreplaceable role in modern electronic and power systems because of its characteristics of fast charging, high output, long life and high temperature stability. Among various dielectric materials, Bi0.5Na0.5TiO3-based energy storage ceramics with high saturation polarization are limited due to high conductivity and high residual polarization. In this paper, Bi(0.5-x)Na0.5LaxTiO3 (denoted as BNLxT) ceramic was prepared by solid state reaction method. By introducing La3+ at A position, the Bi0.5Na0.5TiO3-based lead-free ceramic was modified to improve its relaxation characteristics and breakdown strength, so as to achieve the purpose of increasing energy storage density and energy storage efficiency. The introduction of La3+ at A position creates a wide temperature platform between dielectric anomalies, indicating that La3+ can effectively induce the relaxation characteristics of BNT ceramics. The breakdown strength is increased from 136 kV/cm of pure BNT ceramics to 198 kV/cm of Bi0.455Na0.5La0.045TiO3 ceramics, which is 1.46 times higher than before. The residual polarization decreased from 49.24 μC/cm2 to 35.29 μC/cm2, and the effective energy storage density increased from 0.80J/cm3 to 2.07J/cm3, an increase of 2.58 times than before. In addition, the energy storage efficiency achieved a transformation of 10.39 %–26.87 %, which is 2.59 times higher than pure BNT. The results show that La3+ can effectively induce the relaxation characteristics of BNT ceramics, improve the effective energy storage density and energy storage efficiency, and is a good dopant to optimize the energy storage performance of BNT-based ceramics, providing feasibility for optimizing the energy storage performance of BNT-based ceramics.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Current Applied Physics
Current Applied Physics 物理-材料科学:综合
CiteScore
4.80
自引率
0.00%
发文量
213
审稿时长
33 days
期刊介绍: Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信