High energy storage properties of (Nb<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>5</mn></mrow></msub></math></inline-formula>La<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>5</mn></mrow></msub></math></inline-formula>)<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msup><mrow></mrow><mrow><mn>4</mn><mo>+</mo></mrow></msup></math></inline-formula> complex-ion modified (Ba<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>8</mn><mn>5</mn></mrow></msub></math></inline-formula>Ca<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>1</mn><mn>5</mn></mrow></msub></math></inline-formula>)(Zr<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>1</mn><mn>0</mn></mrow></msub></math></inline-formula>Ti<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>9</mn><mn>0</mn></mrow></msub></math></inline-formula>)O<sub>3</sub> ceramics

Yaqiong Sun; Santan Dang; Zhanhui Peng; Bi Chen; Yibing Zhang; Di Wu; Pengfei Liang; Lingling Wei; Xiaolian Chao; Zupei Yang

doi:10.1142/S2010135X24400101

Journal of Advanced Dielectrics, Volume. 14, Issue 4, 2440010(2024)

High energy storage properties of (Nb $_{0.5}$ La $_{0.5}$ ) $^{4 +}$ complex-ion modified (Ba $_{0.85}$ Ca $_{0.15}$ )(Zr $_{0.10}$ Ti $_{0.90}$ )O₃ ceramics

Yaqiong Sun¹, Santan Dang¹, Zhanhui Peng^1、*, Bi Chen², Yibing Zhang¹, Di Wu¹, Pengfei Liang³, Lingling Wei⁴, Xiaolian Chao^1、**, and Zupei Yang^1、***

Author Affiliations

¹Key Laboratory for Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, Shaanxi, P. R. China

²School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, Shaanxi, P. R. China

³School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, Shaanxi, P. R. China

⁴School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, Shaanxi, P. R. China

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In this work, a traditional solid-state method was adopted to prepare dense Ba $_{0.85}$ Ca $_{0.15}$ [(Zr $_{0.1}$ Ti $_{0.9}$ ) $_{1 ? x}$ –(Nb $_{0.5}$ La $_{0.5}$ )_x]O₃(BCZT–xNL) lead-free relaxation ferroelectrics with excellent energy storage performance (ESP). Remarkably, a large breakdown field strength of BDS ( $～ 410$ kV/cm) resulting from decreased grain size by double ions doping at the B-site was achieved in BCZT–xNL ceramics. Especially, the BCZT–0.12NL ceramic displays a good recoverable energy density ( $W_{rec}$ ) of 3.1J/cm³, a high efficiency of 86.7% ( $η$ ) and a superior fatigue resistance, as well as a superior charge–discharge performance ( $C_{D} ～ 1623.14$ A/cm², $P_{D} ～ 162.31$ MW/cm³, $W_{D} ～ 1.30$ J/cm³, $t_{0.9} ～ 49.6$ ns) and good thermal stability. Besides, upon NL doping, the FE to RFE phase transition results in a dielectric behavior traversing the relaxation phase ( $γ ～ 1.84$ ) accompanied by frequency dispersion, which is beneficial to improve ESP. The superior ESP in this work indicates that BCZT–0.12NL ceramics are a promising candidate used in energy storage capacitors.

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Keywords

Co-doped BCZT ceramics energy storage high BDS relaxor ferroelectric

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Yaqiong Sun, Santan Dang, Zhanhui Peng, Bi Chen, Yibing Zhang, Di Wu, Pengfei Liang, Lingling Wei, Xiaolian Chao, Zupei Yang. High energy storage properties of (Nb $_{0.5}$ La $_{0.5}$ ) $^{4 +}$ complex-ion modified (Ba $_{0.85}$ Ca $_{0.15}$ )(Zr $_{0.10}$ Ti $_{0.90}$ )O₃ ceramics[J]. Journal of Advanced Dielectrics, 2024, 14(4): 2440010

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Paper Information

Category: Research Articles

Received: Jan. 18, 2024

Accepted: Mar. 30, 2024

Published Online: Nov. 5, 2024

The Author Email: Peng Zhanhui (pzh@snnu.edu.cn), Chao Xiaolian (chaoxl@snnu.edu.cn), Yang Zupei (yangzp@snnu.edu.cn)

DOI:10.1142/S2010135X24400101

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