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Issue 24, 2018, Issue in Progress
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The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis

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Abstract

Recently, solid-state electrolyte lithium lanthanum zirconium oxide garnet (Li7La3Zr2O12, LLZO) has attracted great attention due to its high room temperature conductivity of lithium ions and stability against lithium metal electrodes. The Al-doped cubic garnet Li6.4Al0.2La3Zr2O12 was synthesized by a conventional solid-state method at different sintering temperatures. The influence of the sintering process on the structure and ionic conductivity was investigated by X-ray diffraction, electrochemical impedance spectroscopy, and scanning electron microscopy. The results showed that Li vaporization and relative density were affected by the sintering process. The synergistic effects of Li concentration and relative density determined the Li+ ionic conductivity. Compared with the relative density, the Li concentration plays a more important role in determining the ionic conductivity via the solid-state method.

Graphical abstract: The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis

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Publication details

The article was received on 11 Feb 2018, accepted on 19 Mar 2018 and first published on 09 Apr 2018


Article type: Paper
DOI: 10.1039/C8RA01329B
Citation: RSC Adv., 2018,8, 13083-13088
  • Open access: Creative Commons BY-NC license
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    The effect of sintering process on lithium ionic conductivity of Li6.4Al0.2La3Zr2O12 garnet produced by solid-state synthesis

    W. Xue, Y. Yang, Q. Yang, Y. Liu, L. Wang, C. Chen and R. Cheng, RSC Adv., 2018, 8, 13083
    DOI: 10.1039/C8RA01329B

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