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Effect of sintering conditions on the properties of sol-gel-derived Li1.3Al0.3Ti1.7(PO4)3

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Abstract

Solid electrolyte Li1.3Al0.3Ti1.7(PO4)3 was prepared by sol-gel method under different sintering conditions. The structural identification, surface morphology, electrochemical window, ionic conductivity, and activation energy of the Li1.3Al0.3Ti1.7(PO4)3 sintered pellets were investigated by X-ray diffraction, scanning electron microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. It is found that the sintering temperature and time have considerable effect on the properties of the Li1.3Al0.3Ti1.7(PO4)3 sintered pellets. The Li1.3Al0.3Ti1.7(PO4)3 pellet sintered at 900 °C for 2 h is denser than the pellets sintered at other conditions. Different sintering conditions result in the sintered pellet with different porosity. However, the sintering conditions have little effect on the electrochemical window of Li1.3Al0.3Ti1.7(PO4)3. Among the Li1.3Al0.3Ti1.7(PO4)3 pellets sintered at various conditions, the pellet sintered at 900 °C for 2 h shows the highest ionic conductivity of 3.46 × 10−4 S cm−1 and the lowest activation energy of 0.2821 eV.

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Acknowledgments

This work was supported by National Natural Science Foundation of China (No. 20873054) and Scientific Research Fund of Hunan Provincial Education Department (No.07B060).

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan, 416000, China

    Xian Ming Wu, Jin Lian Liu, Shang Chen, Ming You Ma & Jian Ben Liu

  2. Xiangxi Ores and New Materials Research and Service Center, Jishou, Hunan, 416000, China

    Xian Ming Wu & Shang Chen

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  1. Xian Ming Wu
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  2. Jin Lian Liu
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  3. Shang Chen
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  4. Ming You Ma
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Correspondence to Xian Ming Wu.

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Wu, X.M., Liu, J.L., Chen, S. et al. Effect of sintering conditions on the properties of sol-gel-derived Li1.3Al0.3Ti1.7(PO4)3 . Ionics 16, 827–831 (2010). https://doi.org/10.1007/s11581-010-0471-9

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  • DOI: https://doi.org/10.1007/s11581-010-0471-9

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