Temperature-stable dielectric and energy storage properties of La(Ti0.5Mg0.5)O3-doped (Bi0.5Na0.5)TiO3-(Sr0.7Bi0.2)TiO3 lead-free ceramics

Nianshun Zhao, Huiqing Fan, Li Ning, Jiangwei Ma, Yunyan Zhou

科研成果: 期刊稿件文章同行评审

104 引用 (Scopus)

摘要

A new type of (0.7−x)Bi0.5Na0.5TiO3-0.3Sr0.7Bi0.2TiO3-xLaTi0.5Mg0.5O3 (LTM1000x, x = 0.0, 0.005, 0.01, 0.03, 0.05 wt%) lead-free energy storage ceramic material was prepared by a combining ternary perovskite compounds, and the phase transition, dielectric, and energy storage characteristics were analyzed. It was found that the ceramic materials can achieve a stable dielectric property with a large dielectric constant in a wide temperature range with proper doping. The dielectric constant was stable at 2170 ± 15% in the temperature range of 35-363°C at LTM05. In addition, the storage energy density was greatly improved to 1.32 J/cm3 with a high-energy storage efficiency of 75% at the composition. More importantly, the energy storage density exhibited good temperature stability in the measurement range, which was maintained within 5% in the temperature range of 30-110°C. Particularly, LTM05 show excellent fatigue resistance within 106 fatigue cycles. The results show that the ceramic material is a promising material for temperature-stable energy storage.

源语言英语
页(从-至)5578-5585
页数8
期刊Journal of the American Ceramic Society
101
12
DOI
出版状态已出版 - 12月 2018

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