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Effect of Sintering Temperature and Holding Time on Ionic Conductivity for Li6.4La3Zr1.4Ta0.6O12 Electrolyte

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The Proceedings of the 9th Frontier Academic Forum of Electrical Engineering

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 743))

Abstract

Garnet-type Li6.4La3Zr1.4Ta0.6O12 (LLZTO) is considered as one of the most potential electrolytes for solid state lithium batteries. Sintering process is a critical step in the preparation of LLZTO. Herein, LLZTO solid-state electrolytes were prepared by high temperature solid-phase reaction with different sintering temperature from 1150 to 1250 °C and different sintering holding time from 1 min to 60 min. According to EIS, electrolytes with high ionic conductivity up to 8.1 × 10−4 S cm−1 were obtained by sintering at 1200 °C for 20 min. Besides, LLZTO pellets prepared in this experimental condition show high density reaching up to 97.6%. Li symmetric cell with the LLZTO sintered at 1200 °C for 20 min also exhibits stable cycle performance under current density of 0.25 mA cm−2 at room temperature.

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Authors and Affiliations

  1. State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xian Jiaotong University, Xian, Shaanxi, 710049, China

    Jie Gao, Weichang Guo, Hengrui Yang, Fei Shen & Xiaogang Han

  2. Xian Jiaotong University Suzhou Institute, Suzhou, Jiangsu, 215123, China

    Fei Shen

  3. Key Laboratory of Smart Grid of Shaanxi Province, Xian, Shaanxi, 710049, China

    Xiaogang Han

Authors
  1. Jie Gao
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  2. Weichang Guo
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  3. Hengrui Yang
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  4. Fei Shen
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  5. Xiaogang Han
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Corresponding author

Correspondence to Xiaogang Han .

Editor information

Editors and Affiliations

  1. State Grid Corporation of China, Beijing, China

    Weijiang Chen

  2. Tianjin University of Technology, Tianjin, China

    Qingxin Yang

  3. Xi’an Jiaotong University, Xi’an, Shaanxi, China

    Laili Wang

  4. Xi’an Jiaotong University, Xi’an, Shaanxi, China

    Dingxin Liu

  5. Xi’an Jiaotong University, Xi’an, Shaanxi, China

    Xiaogang Han

  6. Xi’an Jiaotong University, Xi’an, Shaanxi, China

    Guodong Meng

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Gao, J., Guo, W., Yang, H., Shen, F., Han, X. (2021). Effect of Sintering Temperature and Holding Time on Ionic Conductivity for Li6.4La3Zr1.4Ta0.6O12 Electrolyte. In: Chen, W., Yang, Q., Wang, L., Liu, D., Han, X., Meng, G. (eds) The Proceedings of the 9th Frontier Academic Forum of Electrical Engineering. Lecture Notes in Electrical Engineering, vol 743. Springer, Singapore. https://doi.org/10.1007/978-981-33-6609-1_38

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  • DOI: https://doi.org/10.1007/978-981-33-6609-1_38

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-33-6608-4

  • Online ISBN: 978-981-33-6609-1

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