High-Entropy Composition Design for Achieving Excellent Energy Storage Performance in (Bi0.5Na0.5)0.94Ba0.06TiO3-Based Ceramics

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2025-03-07 DOI:10.1021/acsaelm.5c0015310.1021/acsaelm.5c00153

Yiwen Niu, Fan Zhang*, Zhiqiang Zhang, Meiyue Li, Jihang Liu and Zhan Jie Wang,

{"title":"High-Entropy Composition Design for Achieving Excellent Energy Storage Performance in (Bi0.5Na0.5)0.94Ba0.06TiO3-Based Ceramics","authors":"Yiwen Niu, Fan Zhang*, Zhiqiang Zhang, Meiyue Li, Jihang Liu and Zhan Jie Wang, ","doi":"10.1021/acsaelm.5c0015310.1021/acsaelm.5c00153","DOIUrl":null,"url":null,"abstract":"Lead-free dielectric capacitors display a huge potential in pulsed power energy storage systems. However, how to realize superior recoverable energy storage density (Wrec) and efficiency (η) in dielectric materials remains a major challenge. Herein, a high-entropy strategy based on (Bi0.5Na0.5)0.94Ba0.06TiO3 with a morphotropic phase boundary composition is developed to gain superior comprehensive energy storage characteristics. The energy storage capabilities are significantly regulated by high-entropy composition design, which induces the destruction of long-range ferroelectric ordering, inhibition of grain growth, optimization of relaxation behavior, increase in resistivity, and widening of band gap, promoting the improvement of polarization difference and electric breakdown strength (Eb). Ultimately, excellent Wrec (∼7.57 J/cm3) and η (81.8%) under a great Eb ∼ 572 kV/cm are realized in the 0.9[((Bi0.5Na0.5)0.94Ba0.06)0.65(Ca0.5Sr0.5)0.35]TiO3-0.1(Bi0.9Nd0.1)(Mg0.5Zr0.5)O3 high-entropy ceramic. Meanwhile, prominent temperature, frequency, and cycle stability as well as charge–discharge performance are also exhibited in the corresponding sample. These results confirm the feasibility of the studied high-entropy composition for advanced energy storage applications.","PeriodicalId":3,"journal":{"name":"ACS Applied Electronic Materials","volume":"7 6","pages":"2629–2639 2629–2639"},"PeriodicalIF":4.3000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Electronic Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaelm.5c00153","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

Lead-free dielectric capacitors display a huge potential in pulsed power energy storage systems. However, how to realize superior recoverable energy storage density (W_rec) and efficiency (η) in dielectric materials remains a major challenge. Herein, a high-entropy strategy based on (Bi_0.5Na_0.5)_0.94Ba_0.06TiO₃ with a morphotropic phase boundary composition is developed to gain superior comprehensive energy storage characteristics. The energy storage capabilities are significantly regulated by high-entropy composition design, which induces the destruction of long-range ferroelectric ordering, inhibition of grain growth, optimization of relaxation behavior, increase in resistivity, and widening of band gap, promoting the improvement of polarization difference and electric breakdown strength (E_b). Ultimately, excellent W_rec (∼7.57 J/cm³) and η (81.8%) under a great E_b ∼ 572 kV/cm are realized in the 0.9[((Bi_0.5Na_0.5)_0.94Ba_0.06)_0.65(Ca_0.5Sr_0.5)_0.35]TiO₃-0.1(Bi_0.9Nd_0.1)(Mg_0.5Zr_0.5)O₃ high-entropy ceramic. Meanwhile, prominent temperature, frequency, and cycle stability as well as charge–discharge performance are also exhibited in the corresponding sample. These results confirm the feasibility of the studied high-entropy composition for advanced energy storage applications.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico