Enhanced Energy Storage Performance in Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring
Yuleng Jiang,
Xiang Niu,
Wei Liang,
Xiaodong Jian,
Hongwei Shi,
Feng Li,
Yang Zhang,
Ting Wang,
Weiping Gong,
Xiaobo Zhao,
Yingbang Yao,
Tao Tao,
Bo Liang,
Shengguo Lu
Affiliations
Yuleng Jiang
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Xiang Niu
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Wei Liang
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Xiaodong Jian
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Hongwei Shi
Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Feng Li
Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Yang Zhang
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Ting Wang
Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516001, China
Weiping Gong
Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516001, China
Xiaobo Zhao
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Yingbang Yao
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Tao Tao
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Bo Liang
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Shengguo Lu
Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Integrated Circuits, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Owing to the high power density, excellent operational stability and fast charge/discharge rate, and environmental friendliness, the lead-free Na0.5Bi0.5TiO3 (NBT)-based relaxor ferroelectrics exhibit great potential in pulsed power capacitors. Herein, novel lead-free (1−x)(0.7Na0.5Bi0.5TiO3-0.3Sr0.7Bi0.2TiO3)-xBi(Mg0.5Zr0.5)O3 (NBT-SBT-xBMZ) relaxor ferroelectric ceramics were successfully fabricated using a solid-state reaction method and designed via compositional tailoring. The microstructure, dielectric properties, ferroelectric properties, and energy storage performance were investigated. The results indicate that appropriate Bi(Mg0.5Zr0.5)O3 content can effectively enhance the relaxor ferroelectric characteristics and improve the dielectric breakdown strength by forming fine grain sizes and diminishing oxygen vacancy concentrations. Therefore, the optimal Wrec of 6.75 J/cm3 and a η of 79.44% were simultaneously obtained in NBT-SBT-0.15BMZ at 20 °C and 385 kV/cm. Meanwhile, thermal stability (20–180 °C) and frequency stability (1–200 Hz) associated with the ultrafast discharge time of ~49.1 ns were also procured in the same composition, providing a promising material system for applications in power pulse devices.
