{"title":"Enhanced energy storage property in Bi0.5Na0.5TiO3-based ceramics by composition modulation and grain refinement","authors":"Wen Zhou, Yangyang Zhang, Yifei Zhang, Xinhui Yang, Xian Zhang, Qingfeng Zhang, Shenglin Jiang, Guangzu Zhang, Yong Chen, Meng Shen","doi":"10.1111/jace.20382","DOIUrl":null,"url":null,"abstract":"<p>High energy density (<i>W</i><sub>rec</sub>) dielectrics with excellent efficiency (<i>η</i>) and thermal stability are crucial in high-power energy storage applications. In this work, we introduce Ba(Zr<sub>0.2</sub>Ti<sub>0.8</sub>)O<sub>3</sub> (BZT) into Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub> (BNT) to delay saturation polarization and refine grain sizes for enhancing energy storage performance. BZT diffusing into BNT lattice not only increases electronegativity between A‒O/B‒O bond and the relaxor, but also is beneficial for refining grain sizes and suppressing the development of local electric branches. Therefore, high <i>P</i><sub>max</sub> with moderate <i>P</i><sub>r</sub> and improved breakdown strength is achieved in BNT‒<i>x</i>BZT ceramics with <i>x </i>= 0.6 mol. Additionally, BNT‒0.60BZT ceramics demonstrate enhanced recoverable energy storage density of 4.1 J cm<sup>−3</sup> with high energy storage efficiency of 91%, along with favorable overdamped charge‒discharge properties including a maximum current, discharge energy density, and discharge time of 10 A, 2.4 J cm<sup>−3</sup>, and 150 ns, respectively.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 5","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20382","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Enhanced energy storage property in Bi0.5Na0.5TiO3-based ceramics by composition modulation and grain refinement
High energy density (Wrec) dielectrics with excellent efficiency (η) and thermal stability are crucial in high-power energy storage applications. In this work, we introduce Ba(Zr0.2Ti0.8)O3 (BZT) into Bi0.5Na0.5TiO3 (BNT) to delay saturation polarization and refine grain sizes for enhancing energy storage performance. BZT diffusing into BNT lattice not only increases electronegativity between A‒O/B‒O bond and the relaxor, but also is beneficial for refining grain sizes and suppressing the development of local electric branches. Therefore, high Pmax with moderate Pr and improved breakdown strength is achieved in BNT‒xBZT ceramics with x = 0.6 mol. Additionally, BNT‒0.60BZT ceramics demonstrate enhanced recoverable energy storage density of 4.1 J cm−3 with high energy storage efficiency of 91%, along with favorable overdamped charge‒discharge properties including a maximum current, discharge energy density, and discharge time of 10 A, 2.4 J cm−3, and 150 ns, respectively.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
