Citation: Shunshun Jiang, Ji Zhang, Jing Wang, Shan-Tao Zhang. Excellent energy storage properties in non-stoichiometric Bi_0.5Na_0.5TiO₃-based relaxor ferroelectric ceramics[J]. Chinese Chemical Letters, ;2024, 35(7): 108955. doi: 10.1016/j.cclet.2023.108955 shu

Excellent energy storage properties in non-stoichiometric Bi_0.5Na_0.5TiO₃-based relaxor ferroelectric ceramics

Shunshun Jiang ^a ,
Ji Zhang ^{a, *,} ,
Jing Wang ^{b, *,} ,
Shan-Tao Zhang ^c

a.
School of Materials Science and Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
b.
State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
c.
National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, College of Engineering and Applied Science & Jiangsu Key Laboratory of Artificial Functional Materials & Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

jizhang@njust.edu.cn

wang-jing@nuaa.edu.cn

Received Date: 27 June 2023
Revised Date: 31 July 2023
Accepted Date: 21 August 2023
Available Online: 22 August 2023

Figures(4)

The rapid development of high-power and pulsed-power techniques inspires extensive investigates on high-performance ceramic-based capacitors. However, the low recoverable energy density (W_rec) hampers their wider applications. Herein, the non-stoichiometric Bi_0.5Na_0.5TiO₃-based ceramics were designed and studied. The proper introduction of oxygen vacancies facilitated activating defect dipole, giving rise to reduced remanent polarization. Consequently, the optimal composition exhibited an exceptional high W_rec of 8.3 J/cm³, a high efficiency of 85%, and excellent anti-fatigue and thermal reliability. This work provides an efficient approach to explore ceramic capacitors with high capacitive energy storage performances.
- Non-stoichiometric,
- Bi_0.5Na_0.5TiO₃,
- Ceramic capacitor,
- Energy density,
- Thermal stability
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Excellent energy storage properties in non-stoichiometric Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics

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通讯作者: 陈斌, bchen63@163.com

Excellent energy storage properties in non-stoichiometric Bi_0.5Na_0.5TiO₃-based relaxor ferroelectric ceramics