• Journal of Advanced Dielectrics
  • Vol. 13, Issue 1, 2242004 (2023)
Cen Liang1、¶, Changyuan Wang1、¶, Wenjun Cao1, Hanyu Zhao1, Feng Li2、*, and Chunchang Wang1、**
Author Affiliations
  • 1Laboratory of Dielectric Functional Materials, School of Materials Science and Engineering Anhui University, Hefei, Anhui 230601, P. R. China
  • 2Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University Hefei, Anhui 230601, P. R. China
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    DOI: 10.1142/S2010135X22420048 Cite this Article
    Cen Liang, Changyuan Wang, Wenjun Cao, Hanyu Zhao, Feng Li, Chunchang Wang. High energy storage properties in Ca0.7La0.2TiO3-modified NaNbO3-based lead-free antiferroelectric ceramics[J]. Journal of Advanced Dielectrics, 2023, 13(1): 2242004 Copy Citation Text show less

    Abstract

    In this work, (1x)(0.92NaNbO3–0.08BaTiO3)–xCa0.7La0.2TiO3 (NNBT –xCLT) ceramics were successfully designed and prepared by the solid-state reaction method. Investigations on the structure, dielectric, and energy storage properties were performed. The NNBT – 0.25CLT ceramic with orthorhombic phase at room temperature was found to exhibit extremely small grain size and compacted microstructure. A largeWrec of 3.1 J/cm3 and a highη of 91.5% under the electric field of 360 kV/cm were achieved simultaneously in the sample. In addition, the energy storage performance of the sample exhibits thermal stability over the temperature range of 25–140C and the frequency range of 5–500 Hz. The charge and discharge tests reveal that the ceramic shows a large current densityCD of 965 A/cm2 and power densityPD of 154 MW/cm3. This work demonstrates that the NNBT–0.25CLT ceramic is a prospective energy storage material for potential application in the field of pulsed power devices.In this work, (1x)(0.92NaNbO3–0.08BaTiO3)–xCa0.7La0.2TiO3 (NNBT –xCLT) ceramics were successfully designed and prepared by the solid-state reaction method. Investigations on the structure, dielectric, and energy storage properties were performed. The NNBT – 0.25CLT ceramic with orthorhombic phase at room temperature was found to exhibit extremely small grain size and compacted microstructure. A largeWrec of 3.1 J/cm3 and a highη of 91.5% under the electric field of 360 kV/cm were achieved simultaneously in the sample. In addition, the energy storage performance of the sample exhibits thermal stability over the temperature range of 25–140C and the frequency range of 5–500 Hz. The charge and discharge tests reveal that the ceramic shows a large current densityCD of 965 A/cm2 and power densityPD of 154 MW/cm3. This work demonstrates that the NNBT–0.25CLT ceramic is a prospective energy storage material for potential application in the field of pulsed power devices.
    Cen Liang, Changyuan Wang, Wenjun Cao, Hanyu Zhao, Feng Li, Chunchang Wang. High energy storage properties in Ca0.7La0.2TiO3-modified NaNbO3-based lead-free antiferroelectric ceramics[J]. Journal of Advanced Dielectrics, 2023, 13(1): 2242004
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