Research on Improving Energy Storage Density and Efficiency of Dielectric Ceramic Ferroelectric Materials Based on BaTiO3 Doping with Multiple Elements
发布时间：2026-04-02点击次数：
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DOI码：10.3390/jcs7060233
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发表刊物：Journal of Composites Science
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关键字：energy storage density; BaTiO3; perovskite structure; phase transition; relaxation ferroelectric body
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摘要：In order to promote the research of green energy in the situation of increasingly serious environmental pollution, dielectric ceramic energy storage materials, which have the advantages of an extremely fast charge and discharge cycle, high durability, and have a broad use in new energy vehicles and pulse power, are being studied. However, the energy storage density of ordinary dielectric ceramic ferroelectric materials is low, so, in this paper, we have divided eight components based on BaTiO3 (BT). Through the traditional solid phase sintering method, AB positions were replaced with various elements of different proportions to improve their energy storage density and the energy storage efficiency of BT-based ferroelectric materials. In this paper, we studied the results of XRD, Raman, ferroelectric, dielectric, and impedance tests of doped samples, and the best components were determined. The (1−x)BT−xBi(Mg1/3Zn1/3Ta1/6Nb1/6)O3 series of ceramics are made by the incorporation of five elements, Bi3+, Mg2+, Zn2+, Ta5+, and Nb5+. With the rising electric hysteresis loop of the doping amount x thin, the saturation polarization strength and residual polarization strength decrease, and the energy storage density rises first and then decreases. The dielectric characteristic after x = 0.08 showed a flat dielectric peak, indicating that the ferroelectric relaxation had been formed. The energy storage density and efficiency of the best component x = 0.12 reached 1.75 J/cm3 and 75%, respectively, and the Curie temperature was about −20 °C, so it has the potential to be used at room temperature.
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是否译文：否
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发表时间：2023-06-05
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收录刊物：SCI、EI
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李远哲
职务：Professor
主要任职：
个人信息
- 博士生导师
硕士生导师 - 教师英文名称：Yuanzhe
- 教师拼音名称：liyuanzhe
- 电子邮箱：
- 所在单位：碳中和研究院
- 职务：Professor
- 学历：博士研究生毕业
- 办公地点：中国矿业大学(文昌校区) 教三楼 碳中和研究院
- 性别：男
- 联系方式：yuanzhe.li@cumt.edu.cn
- 学位：哲学博士学位
- 毕业院校：Nanyang Technological University
学术荣誉：
- 2025当选：江苏特聘教授
曾获荣誉：
- 2023-12-27新加坡国家级范畴三（CSE3）半导体行业专家 & 碳税 主任审核员
- 2023-12-27新加坡经管局资源效率补助（REG(E)）减碳项目 主任验证审核员
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- 2024-12-02碳中和 ISO14068认证 主任审核员
- 2024-11-27可持续性保证（ACSAP）认证资格 (AA1000注册)
- 2025-09-01ISO14067 产品碳认证 外部主任审核员
- 2024-03-04ISO14064 温室气体排放与碳核查 外部主任审核员（ANAB注册验证）
- 2025-10-01ISO50001 能源管理体系外部主任审员
- 2024-05-13ISO45001 职业健康安全管理体系外部主任审员 (CQI & IRCA注册)
- 2024-04-01ISO14001 环境管理体系 外部主任审核员 (CQI & IRCA注册)
- 2017-09-18新加坡人力部注册安全官（WSHO）
- 2025-09-01江苏特聘教授
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