Study on Electrical Properties and Morphology of Garnet-Type Structure Li₇La₃Ce₂O₁₂ with Different Synthesizing Routes

Abstract:

The Li₇La₃Ce₂O₁₂ ceramic was synthesized in this work by using a conventional solid-state reaction route and a planetary ball-mill method. At room temperature, the sample had a tetragonal structure with space group I4/mmm, according to the X-ray diffraction analysis. The pure phase of the sample was successfully synthesized using conventional solid-state reaction routes. The impedance spectroscopy was used to measure the electrical properties of the samples over a wide temperature range from 30 °C to 300 °C. At much higher temperatures, both samples showed an incomplete semicircle arc with the smallest resistance value. The samples prepared using conventional solid-state reaction routes exhibits higher conductivity as the sample has denser microstructure.

• Periodical: Advances in Science and Technology (Volume 118)
• Pages: 9-13
• DOI: https://doi.org/10.4028/p-8b7j37
• Online since: September 2022
• Authors: Nazerah Yaacob*, Mohd Sobri Idris, Rozana Aina Maulat Osman, Mogalahalli Venkatesh Reddy, Ku Noor Dhaniah Ku Muhsen, Nor Zachy Fernandez
• Keywords: Ceramic, Garnet-Type Structure, Lithium-Ion Batteries, Solid Electrolytes

References

[1] B. Dong, S. R. Yeandel, P. Goddard, and P. R. Slater, Combined Experimental and Computational Study of Ce-doped La3Zr2Li7O12 Garnet Solid State Electrolyte,, 2019,.

DOI: 10.1021/acs.chemmater.9b03526.s001

[2] F. Zheng, M. Kotobuki, S. Song, M. O. Lai, and L. Lu, Review on solid electrolytes for all-solid-state lithium-ion batteries,, J. Power Sources, vol. 389, 2018,.

DOI: 10.1016/j.jpowsour.2018.04.022

[3] D. Rettenwander, A. Welzl, L. Cheng, J. Fleig, M. Musso, E. Suard, M. Doeff, G. Redhammer and G. Amthauer Synthesis, Crystal Chemistry, and Electrochemical Properties of Li7-2xLa3Zr2-xMoxO12 (x = 0.1-0.4): Stabilization of the Cubic Garnet Polymorph via Substitution of Zr4+ by Mo6+,, Inorg. Chem., vol. 54, no. 21, p.10440–10449, 2015,.

DOI: 10.1021/acs.inorgchem.5b01895

[4] E. Rangasamy, J. Wolfenstine, and J. Sakamoto, The role of Al and Li concentration on the formation of cubic garnet solid electrolyte of nominal composition Li7La3Zr2O12,, Solid State Ionics, vol. 206, p.28–32, 2012,.

DOI: 10.1016/j.ssi.2011.10.022

[5] Y. Luo, Y. Zhang, Q. Zhang, Y. Zheng, H. Chen, and L. Guo, Effect of dual doping on the structure and performance of garnet-type Li7La3Zr2O12 ceramic electrolytes for solid-state lithium-ion batteries,, Ceram. Int., vol. 45, no. 14, p.17874–17883, 2019,.

DOI: 10.1016/j.ceramint.2019.06.002

[6] X. Liu, M. Gao, Y. Liu, L. Xiong, and J. Chen, Improving the room temperature ionic conductivity of Al-Li7La3Zr2O12 ceramics by Ba and Y or Ba and W co-doping,, Ceram. Int., vol. 45, no. 10, p.13488–13495, 2019,.

DOI: 10.1016/j.ceramint.2019.04.052

[7] K. Noor, D. Ku, R. Aina, M. Osman, and M. S. Idris, Giant anomalous dielectric behaviour of ­ BaSnO3 at high temperature,, J. Mater. Sci. Mater. Electron., vol. 0, no. 0, p.0, 2019,.

DOI: 10.1007/s10854-019-01065-x

[8] T. Q. Tan, R. A. M. Osman, M. V. Reddy, Z. Jamal, and M. S. Idris, Structural and electrical studies of olivine LiNi1 − x(Co0.5Mn0.5)xPO4 (0 ≤ x ≤ 1) at high temperature,, Ionics (Kiel)., vol. 24, no. 12, p.3733–3744, 2018,.

DOI: 10.1007/s11581-018-2536-0

[9] J. Gai, E. Zhao, F. Ma, D. Sun, X. Ma, Y. Jin, Q. Wu and Y. Cui Improving the Li-ion conductivity and air stability of cubic Li7La3Zr2O12 by the co-doping of Nb, Y on the Zr site,, J. Eur. Ceram. Soc., vol. 38, no. 4, p.1673–1678, 2018,.

DOI: 10.1016/j.jeurceramsoc.2017.12.002

[10] R. Murugan, S. Ramakumar, and N. Janani, High conductive yttrium doped Li7La3Zr2O12 cubic lithium garnet,, Electrochem. commun., vol. 13, no. 12, p.1373–1375, 2011,.

DOI: 10.1016/j.elecom.2011.08.014