Sr0.7Bi0.2TiO3掺杂Ba0.85Ca0.15Zr0.1Ti0.9O3基陶瓷的储能性能及介电机理研究#br#

doi:10.16039/j.cnki.cn22-1249.2024.11.004

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摘要随着储能技术和现代电子技术的快速发展，对于高性能储能材料的需求日益增长。Ba0.85Ca0.15Zr0.1Ti0.9O3（BCZT）基陶瓷由于其具有优异的介电和铁电性质而备受关注。然而，较低的储能密度和储能效率限制了其在储能领域的进一步发展。通过精确调控掺杂浓度及组分设计，以BCZT陶瓷为基体，制备了一系列(1-x)[0.92Ba0.85Ca0.15Zr0.1Ti0.9O3-0.08Bi(Zn2/3Ta1/3)O3]-x(Sr0.7Bi0.2)TiO3陶瓷样品。同时，结合掺杂后陶瓷的结构和介电性能的深入分析，研究了Sr0.7Bi0.2TiO3掺杂对BCZT基陶瓷储能性能的影响。结果表明，掺杂后陶瓷样品具有单一钙钛矿结构，同时介电弛豫行为得到显著改善。当Sr0.7Bi0.2TiO3掺杂量为x = 0.40时储能性能最佳，其可释放能量密度和储能效率分别为Wrec = 5.431 J/cm3和η = 93.38%。这为优化无铅铁电陶瓷的储能性能提供了理论依据和实验指导。

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	郝加西
	孟凡旭
	王长昊

关键词: 钛酸钡基陶瓷弛豫铁电介电性能储能性能

Abstract: With the rapid development of energy storage technology and modern electronic technology, the demand for high-performance energy storage materials is increasing. Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT)-based ceramics have attracted much attention because of their excellent dielectric and ferroelectric properties. However, the low energy storage density and energy storage efficiency limit its further development in the field of energy storage. By precisely controlling the doping concentration and component design, a series of (1-x)[0.92Ba0.85Ca0.15Zr0.1Ti0.9O3-0.08Bi(Zn2/3Ta1/3)O3]-x(Sr0.7Bi0.2)TiO3 ceramics were prepared using BCZT ceramics as the matrix. At the same time, through an in-depth analysis of the structure and dielectric properties of the doped ceramics, the effect of Sr0.7Bi0.2TiO3 doping on the energy storage properties of BCZT-based ceramics was studied. The results show that the doped ceramics samples have a single perovskite structure and the dielectric relaxation behavior is significantly improved. When the amount of Sr0.7Bi0.2TiO3 doping is x = 0.40, the energy storage performance is the best, and the released energy density and energy storage efficiency are Wrec = 5.431 J/cm3 and η = 93.38%, respectively. This provides a theoretical basis and experimental guidance for optimizing the energy storage performance of lead-free ferroelectric ceramics.

Key words: barium titanate-based ceramics relaxor ferroelectricity dielectric properties energy storage performance

出版日期: 2024-11-25 发布日期: 2025-04-09 整期出版日期: 2024-11-25

ZTFLH:

O 614.23

引用本文:

郝加西, 孟凡旭, 王长昊. Sr0.7Bi0.2TiO3掺杂Ba0.85Ca0.15Zr0.1Ti0.9O3基陶瓷的储能性能及介电机理研究#br#[J]. 吉林化工学院学报, 2024, 41(11): 18-23.
HAO Jiaxi, MENG Fanxu, WANG ChangHao. Research on the Energy Storage Performance and Dielectric Mechanism of Sr0.7Bi0.2TiO3-doped Ba0.85Ca0.15Zr0.1Ti0.9O3-based Ceramics. Journal of Jilin Institute of Chemical Technology, 2024, 41(11): 18-23.

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https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2024.11.004 或 https://xuebao.jlict.edu.cn/CN/Y2024/V41/I11/18

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