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Journal of Inorganic Materials, Volume. 37, Issue 9, 976(2022)

Dielectric and MLCC Property of Modified (Sr,Ca)TiO3 Based Energy Storage Ceramic

Yonghong CHEN1... Zhisheng LIN1, Zishan ZHANG1, Benxia CHEN1 and Genshui WANG2,* |Show fewer author(s)
Author Affiliations
  • 11. Fujian Torch Electron Technology Co., Ltd, Quanzhou 362000, China
  • 22. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (1)
    References (28)
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    Figures & Tables(12)
    Structure (a, b) and equivalent circuit diagram (c) of the capacitor
    1. Structure (a, b) and equivalent circuit diagram (c) of the capacitor

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    Temperature dependent ε for different samples
    2. Temperature dependent ε for different samples

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    Capacitance temperature coefficient of (SrxCa1-x)TiO3 with different Sr/Ca ratios
    3. Capacitance temperature coefficient of (SrxCa1-x)TiO3 with different Sr/Ca ratios

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    SEM images (a-c), EDS elemental maps (d-g) of the (Sr0.4Ca0.6)TiO3 ceramic powder
    4. SEM images (a-c), EDS elemental maps (d-g) of the (Sr0.4Ca0.6)TiO3 ceramic powder

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    Relationship between electric field and capacity change (a), life test (b) of MLCC prepared from ceramic powder with different Sr/Ca ratios
    5. Relationship between electric field and capacity change (a), life test (b) of MLCC prepared from ceramic powder with different Sr/Ca ratios

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    SEM images (a, b) and DPA analysis (c, d) of MLCC prepared by (Sr0.4Ca0.6)TiO3 ceramic powder
    6. SEM images (a, b) and DPA analysis (c, d) of MLCC prepared by (Sr0.4Ca0.6)TiO3 ceramic powder

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    • Table 1. Overall dimensions of 6878 multilayer ceramic capacitor

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      Table 1. Overall dimensions of 6878 multilayer ceramic capacitor

      SpecificationsL/mm W/mm Tmax/mm t/mm
      687817.30±0.8019.80±0.807.801.10±0.70

    • Table 2. Electrical properties of different samples

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      Table 2. Electrical properties of different samples

      Sampleεtanδ/(×10-4)
      SrTiO32626.4
      CaTiO31596.0
      SrTiO3+dopant 38834.7
      CaTiO3+dopant 1574.6

    • Table 3. Electrical properties of (SrxCa1-x)TiO3 with different Sr/Ca ratios

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      Table 3. Electrical properties of (SrxCa1-x)TiO3 with different Sr/Ca ratios

      Sampleεtanδ/(×10-4)
      x=1 38834.7
      x=0.9 34810.5
      x=0.8 30312.8
      x=0.7 2989.4
      x=0.6 2998.7
      x=0.5 2823.7
      x=0.4 2493.0
      x=0.3 2182.6
      x=0.2 2023.5
      x=0.1 1813.3
      x=0 1574.6

    • Table 4. Electrical properties of MLCC prepared from ceramic materials with different Sr/Ca ratios

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      Table 4. Electrical properties of MLCC prepared from ceramic materials with different Sr/Ca ratios

      SamplesC/nF tanδ/ (×10-4) TCC/(×10-6, K-1) BDV/V
      -55 ℃125 ℃
      x=0.4 100.871.8-2464.4-1963.26650
      x=0.5 100.292.3-3118.2-2031.65690

    • Table 5. Discharge current of MLCC prepared from ceramic powder with different Sr/Ca ratios and comparison with commercial MLCC

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      Table 5. Discharge current of MLCC prepared from ceramic powder with different Sr/Ca ratios and comparison with commercial MLCC

      T/℃ Sample -45-352585125
      x=0.4 Current/A43034215403938643732
      Rate/%6.54.4--4.3-7.6
      x=0.5 Current/A44454445419340253774
      Rate/%6.06.0--4.0-10.0
      Commercial MLCC (a)Current/A--3500--

    • Table 6. Cyclic discharge test of MLCC prepared by (Sr0.4Ca0.6)TiO3 based ceramic powder

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      Table 6. Cyclic discharge test of MLCC prepared by (Sr0.4Ca0.6)TiO3 based ceramic powder

      SampleVoltage/VT/℃ Discharge timesResult
      x=0.4 4000251000No failure
      125No failure
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    Yonghong CHEN, Zhisheng LIN, Zishan ZHANG, Benxia CHEN, Genshui WANG. Dielectric and MLCC Property of Modified (Sr,Ca)TiO3 Based Energy Storage Ceramic [J]. Journal of Inorganic Materials, 2022, 37(9): 976

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Nov. 22, 2021

    Accepted: --

    Published Online: Jan. 12, 2023

    The Author Email: WANG Genshui (genshuiwang@mail.sic.ac.cn)

    DOI:10.15541/jim20210718

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology