Synthesis and Electrical Properties of Garnet-type Solid Oxide Electrolyte Thin Films from Solution Route

Abstract

Development of Al-stabilized Li7La3Zr2O12 (LLZO) fast Li ion conducting thin films was attempted by chemical solution deposition (CSD) method with the nominal composition of Li5.95Al0.35La3Zr2O12. The films were crystallized at 600°C on Pt-coated Si substrates in almost single phase without a preferred orientation to any crystallographic axis. Subsequent thermal annealing at 760°C improved packing of LLZO grains with the film thickness of 1.1μm. AC impedance measurements were conducted both with Li reversible and Au blocking microelectrodes deposited on the films annealed at 760°C. Total Li ion conductivity σtotal comprised of bulk and grain boundary contribution was studied. The temperature dependence of σtotal was described with single thermal activation process and σtotal∼2x10-5 S/cm and activation energy of Ea=0.58eV were estimated. These values may be attributed to tetragonal modification of LLZO crystal.

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References

  1. 1.

    M. P. O’Callaghan, A. S. Powell, J. J. Titman, G. Z. Chen, and E. J. Cussen, Chem. Mater. 20 2360 (2009).

    Article  Google Scholar 

  2. 2.

    R. Murugan, V. Thangadurai, and W. Weppner, Angew. Chem. Int. Ed. 46 7778 (2007).

    CAS  Article  Google Scholar 

  3. 3.

    H. Buschmann, J. Doelle, S. Berendts, A. Kuhn, P. Bottke, M. Wilkening, P. Heitjans, A. Senyshyn, H. Ehrenberg, A. Lotnyk, V. Duppel, L. Kienlee, and J. Janek, Phys. Chem. Chem. Phys. 13 19378 (2011).

    CAS  Article  Google Scholar 

  4. 4.

    S. Adams and R. P. Rao, J. Mater. Chem. 22 1426 (2012).

    CAS  Article  Google Scholar 

  5. 5.

    C. A. Geiger, E. Alekseev, B. Lazic, M. Fisch, T. Armbruster, R. Langner, M. Fechtelkord, N. Kim, T. Pettke, and W. Weppner, Ionorg. Chem. 50 1089 (2011).

    CAS  Article  Google Scholar 

  6. 6.

    S. D. Jones and J. R. Akridge, Solid State Ionics 8688 Part 2 1291 (1996).

    Article  Google Scholar 

  7. 7.

    J. C. Brinker and G. W. Scherer in SOL-GEL SCIENCE: The Physics and Chemistry of Sol-Gel Processing, ed. J. C. Brinker and G. W. Scherer (Academic Press, 1990).

    Google Scholar 

  8. 8.

    M. Kotobuki, H. Munakata, K. Kanamura, Y. Sato, and T. Yoshida, J. Electrochem. Soc. 157 A1076 (2010).

    CAS  Article  Google Scholar 

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Correspondence to Hirofumi Matsuda.

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Matsuda, H., Hosono, E. & Zhou, H. Synthesis and Electrical Properties of Garnet-type Solid Oxide Electrolyte Thin Films from Solution Route. MRS Online Proceedings Library 1496, 310 (2012). https://doi.org/10.1557/opl.2013.374

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