首页|High energy storage property of Na0.5Bi0.5TiO3-based ceramics modified by complex-ion and SrTiO3
High energy storage property of Na0.5Bi0.5TiO3-based ceramics modified by complex-ion and SrTiO3
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NSTL
Elsevier
? 2022 Elsevier B.V.Exploring high-effect and pollution-free energy storage devices is the most important issue to be solved for many researchers. In this work, (Bi0.5Na0.5)TiO3-based lead-free ceramics were modified by La3+ in the A-site and (Al0.5Nb0.5)4+ in the B-site, respectively. In order to further modify, a linear dielectric of SrTiO3 was incorporated. By this means, novel (1-x)(Bi0.48La0.02Na0.5)Ti0.92 (Al0.5Nb0.5)0.08O3-xSrTiO3 [(1-x)(BLNANT)-xST] ceramics were prepared by traditional solid state reaction method. The crystal structure, microstructure, dielectric properties and energy storage properties were investigated. In particular, a great recoverable energy density (3.35 J/cm3) and efficiency (78.8%) were achieved under a low electric field of 255 kV/cm for the optimal composition. In addition, the P-E loops of this ceramic possess a good temperature (25–150 °C) and frequency stability (1–100 Hz) under the electric field of 150 kV/cm. Finally, an extremely fast discharge time (t0.9) of 71.3 ns and an eminent power density (PD) of 39.04 MW/cm3 can be obtained. These characteristics indicate that the ceramics of this work possess a good potential for high energy storage application.
Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials School of Materials Science and Engineering Shaanxi University of Science and Technology
NSTL
Elsevier
