脉冲功率电容器用掺镉（Pb, La）（Sn, Zr, Ti）O3陶瓷增强储能性能

IF 7.9 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources Pub Date : 2025-10-04 DOI:10.1016/j.jpowsour.2025.238563

Muhammad Nasir Rafiq , Zhonghua Dai , Yuanyuan Zheng , Xujun Li , Chenxi Liu , Xin Zhao , Yu Cong , Shuitao Gu

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引用次数: 0

摘要

铅基陶瓷具有较高的储能和电性能，是一种用于脉冲电源系统的高性能材料。（Pb, Cd, La）（Zr, Sn, Ti）O3 （PCLZST）反铁电陶瓷作为储能材料备受关注。本文采用固态法制备了Pb0.97-x Cdx La0.02 (Zr0.93Sn0.05Ti0.02)O3 （x = 0.01, 0.015, 0.02和0.025）陶瓷，研究了其介电特性和储能特性。结果表明：在PCLZST陶瓷中，a位掺杂Cd2+有效抑制了晶粒的生长，使PCLZST陶瓷的平均晶粒尺寸最小为1.24 μm；PCLZST陶瓷表现出正交相和高弛豫系数，证实了其优异的反铁电性质。值得注意的是，PCLZST陶瓷的储能密度为10.09 J/cm3，可回收储能密度为7.79 J/cm3，放电时间为0.102 μs，综合性能最佳。这些发现强调了掺杂cd的PLZST陶瓷在先进储能和脉冲电源系统中的功效，强调了它们推动未来技术进步的潜力。

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Enhanced energy storage properties of Cd-doped (Pb, La)(Sn, Zr, Ti)O3 ceramics for pulsed power capacitors

Lead-based ceramics with high energy storage and electrical capabilities are developed as high-performance materials for pulsed power systems. The (Pb, Cd, La)(Zr, Sn, Ti)O₃ (PCLZST) anti-ferroelectric ceramics attract significant attention as energy storage materials. In this work, ceramics (Pb_0.97-x Cd_x La_0.02)(Zr_0.93Sn_0.05Ti_0.02)O₃ (x = 0.01, 0.015, 0.02 and 0.025) have been prepared using a solid-state method, and their dielectric and energy storage characteristics are investigated. The results indicate that Cd²⁺ doping at the A-site effectively suppresses grain growth, leading to a minimum average grain size of 1.24 μm in PCLZST ceramics. The PCLZST ceramics exhibit orthorhombic phases and high relaxation factors, confirming their excellent antiferroelectric nature. Notably, the energy storage density of PCLZST ceramics is 10.09 J/cm³, the recoverable energy storage density is 7.79 J/cm³, and the discharge time is 0.102 μs reflecting optimal comprehensive performance. These findings emphasize the efficacy of Cd-doped PLZST ceramics in advanced energy storage and pulse power systems, underscoring their potential to drive future technological advancements.

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来源期刊

Journal of Power Sources 工程技术-电化学

CiteScore

16.40

自引率

6.50%

发文量

1249

审稿时长

36 days

期刊介绍： The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells. Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include: • Portable electronics • Electric and Hybrid Electric Vehicles • Uninterruptible Power Supply (UPS) systems • Storage of renewable energy • Satellites and deep space probes • Boats and ships, drones and aircrafts • Wearable energy storage systems