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BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3 ceramic was prepared by a solid-state method, and the influence of Bi(Mg0.5Zr0.25Ti0.25)O3 content on the microstructure, dielectric, ferroelectric and energy storage properties of BaTiO3-based ceramics was investigated. The ceramic has a tetragonal phase structure when the sample composition x≤0.03, and the structure of the ceramic changes from a tetragonal phase to a cubic phase when x≥0.06. This ceramic shows a good temperature stability. The dielectric constant peak becomes wider and lower, and the material gradually changes from a ferroelectric to a relaxor ferroelectric as Bi(Mg0.5Zr0.25Ti0.25)O3 content in the composition increases. The dielectric constant of the sample keeps stable from room temperature to 500 ℃. The addition of Bi(Mg0.5Zr0.25Ti0.25)O3 can make the hysteresis loop to be slimer, the remnant polarization Pr decreases, and the integral area of the upper branch of P-E loop with respect to the polarization axis become larger. Thus, the material energy storage density increases. The energy storage density of the material firstly increases and then decreases, while the energy storage efficiency increases from 75.08% to 92.35%. The maximum energy density of 0.80 J/cm3 can be obtained with a high efficiency of 88.97% as x=0.1.

, authors=Jiezi HU, Hongkun LV, Liwei DING, authorsList=Jiezi HU, Hongkun LV, Liwei DING, authorCompany=null, correspAuthors=null, authorNote=

HU Jiezi (1982-), female, Senior Engineer. E-mail:

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近年来,高功率、高能量密度的电容器成为新的研究热点,其在脉冲功率系统小型化和轻量化的发展中具有重要意义。本工作以BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3固溶体为研究对象,致力于提高BaTiO3基陶瓷材料的储能密度,系统探究了不同含量的Bi(Mg0.5Zr0.25Ti0.25)O3对BaTiO3基陶瓷材料微观结构以及介电、铁电和储能性能的影响。采用标准固相烧结法制备出致密的(1-x)BaTiO3-xBi(Mg0.5Zr0.25Ti0.25)O3(x=0.03、0.06、0.1、0.3、0.4)陶瓷。通过调整预烧及烧结条件,获得了陶瓷的最佳烧结工艺。随着x的增大,(1-x)BaTiO3-xBi(Mg0.5Zr0.25Ti0.25)O3陶瓷的室温晶体结构由四方相转变为立方相,同时材料从正常铁电体逐渐转变为弛豫型铁电体,介电常数峰值展宽,并在室温至500 ℃的温度范围内基本保持稳定。采用修正的Curie-Weiss定律和Vogel-Fulcher关系对陶瓷介电弛豫行为进行了深入分析。在极化特性方面,Bi(Mg0.5Zr0.25Ti0.25)O3成分的加入能够显著降低剩余极化强度(Pr),增大介电强度,使电滞回线变细长,并使电滞回线中电场对极化的积分面积变大,从而使材料的储能密度得到提高。材料的最大储能密度大致呈先升高后降低的趋势,储能效率从75.08%提高到92.35%,并且在x=0.1时获得了最高的储能密度0.8 J/cm3(储能效率为88.97%)。

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胡洁梓(1982—),女,高级工程师。

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BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3弛豫型铁电体陶瓷的储能特性
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胡洁梓 , 吕洪坤 , 丁历威
硅酸盐学报 | 研究论文 2023,51(6): 1519-1529
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硅酸盐学报 |研究论文 2023 , 51 (6) : 1519 -1529
BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3弛豫型铁电体陶瓷的储能特性
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胡洁梓 , 吕洪坤, 丁历威
作者信息
  • 国网浙江省电力有限公司电力科学研究院,杭州 310000
作者简介:

胡洁梓(1982—),女,高级工程师。

Energy Storage Properties in BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3 Relaxor Ferroelectric Ceramics
Jiezi HU , Hongkun LV, Liwei DING
Affiliations
  • State Grid Zhejiang Electric Power Research Institute, Hangzhou 310000, China
  • HU Jiezi (1982-), female, Senior Engineer. E-mail:

出版时间: 2023-06-20 doi: 10.14062/j.issn.0454-5648.20230114
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近年来,高功率、高能量密度的电容器成为新的研究热点,其在脉冲功率系统小型化和轻量化的发展中具有重要意义。本工作以BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3固溶体为研究对象,致力于提高BaTiO3基陶瓷材料的储能密度,系统探究了不同含量的Bi(Mg0.5Zr0.25Ti0.25)O3对BaTiO3基陶瓷材料微观结构以及介电、铁电和储能性能的影响。采用标准固相烧结法制备出致密的(1-x)BaTiO3-xBi(Mg0.5Zr0.25Ti0.25)O3(x=0.03、0.06、0.1、0.3、0.4)陶瓷。通过调整预烧及烧结条件,获得了陶瓷的最佳烧结工艺。随着x的增大,(1-x)BaTiO3-xBi(Mg0.5Zr0.25Ti0.25)O3陶瓷的室温晶体结构由四方相转变为立方相,同时材料从正常铁电体逐渐转变为弛豫型铁电体,介电常数峰值展宽,并在室温至500 ℃的温度范围内基本保持稳定。采用修正的Curie-Weiss定律和Vogel-Fulcher关系对陶瓷介电弛豫行为进行了深入分析。在极化特性方面,Bi(Mg0.5Zr0.25Ti0.25)O3成分的加入能够显著降低剩余极化强度(Pr),增大介电强度,使电滞回线变细长,并使电滞回线中电场对极化的积分面积变大,从而使材料的储能密度得到提高。材料的最大储能密度大致呈先升高后降低的趋势,储能效率从75.08%提高到92.35%,并且在x=0.1时获得了最高的储能密度0.8 J/cm3(储能效率为88.97%)。

钛酸钡  /  储能介质陶瓷  /  弛豫型铁电体  /  介电性能  /  储能特性

BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3 ceramic was prepared by a solid-state method, and the influence of Bi(Mg0.5Zr0.25Ti0.25)O3 content on the microstructure, dielectric, ferroelectric and energy storage properties of BaTiO3-based ceramics was investigated. The ceramic has a tetragonal phase structure when the sample composition x≤0.03, and the structure of the ceramic changes from a tetragonal phase to a cubic phase when x≥0.06. This ceramic shows a good temperature stability. The dielectric constant peak becomes wider and lower, and the material gradually changes from a ferroelectric to a relaxor ferroelectric as Bi(Mg0.5Zr0.25Ti0.25)O3 content in the composition increases. The dielectric constant of the sample keeps stable from room temperature to 500 ℃. The addition of Bi(Mg0.5Zr0.25Ti0.25)O3 can make the hysteresis loop to be slimer, the remnant polarization Pr decreases, and the integral area of the upper branch of P-E loop with respect to the polarization axis become larger. Thus, the material energy storage density increases. The energy storage density of the material firstly increases and then decreases, while the energy storage efficiency increases from 75.08% to 92.35%. The maximum energy density of 0.80 J/cm3 can be obtained with a high efficiency of 88.97% as x=0.1.

barium titanate  /  dielectric energy storage  /  relaxor ferroelectrics  /  dielectric properties  /  energy storage properties
胡洁梓, 吕洪坤, 丁历威. BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3弛豫型铁电体陶瓷的储能特性. 硅酸盐学报, 2023 , 51 (6) : 1519 -1529 . DOI: 10.14062/j.issn.0454-5648.20230114
Jiezi HU, Hongkun LV, Liwei DING. Energy Storage Properties in BaTiO3-Bi(Mg0.5Zr0.25Ti0.25)O3 Relaxor Ferroelectric Ceramics[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (6) : 1519 -1529 . DOI: 10.14062/j.issn.0454-5648.20230114
  • 国家电网总部科技项目(5211DS21000F)
  • Technology Project of State Grid Zhejiang Electric Power Co., Ltd(5211DS21000F)
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doi: 10.14062/j.issn.0454-5648.20230114
  • 接收时间:2023-03-01
  • 首发时间:2026-10-20
  • 出版时间:2023-06-20
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  • 收稿日期:2023-03-01
  • 修回日期:2023-03-27
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国家电网总部科技项目(5211DS21000F)
Technology Project of State Grid Zhejiang Electric Power Co., Ltd(5211DS21000F)
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    国网浙江省电力有限公司电力科学研究院,杭州 310000
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2种不同金属材料的力学参数
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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