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Volume 13
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10.3390/membranes13050468
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Article

Electrophoretic Deposition and Characterization of Thin-Film Membranes Li7La3Zr2O12

by
Efim Lyalin
1,
Evgeniya Il’ina
1,
Elena Kalinina
2,3,*,
Boris Antonov
1,
Alexander Pankratov
1 and
Danil Pereverzev
4
1
Laboratory of Electrochemical Power Sources, Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, 620990 Yekaterinburg, Russia
2
Laboratory of Complex Electrophysic Investigations, Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, 620016 Yekaterinburg, Russia
3
Department of Physical and Inorganic Chemistry, Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Yekaterinburg, Russia
4
Laboratory of Solid State Ionics, Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 620108 Yekaterinburg, Russia
*
Author to whom correspondence should be addressed.
Membranes 2023, 13(5), 468; https://doi.org/10.3390/membranes13050468
Submission received: 23 March 2023 / Revised: 11 April 2023 / Accepted: 24 April 2023 / Published: 27 April 2023
(This article belongs to the Special Issue Fabrication, Characterization and Application of Organic/Inorganic Film Membranes and Advanced Materials (Volume II))
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Abstract

In the presented study, films from tetragonal Li7La3Zr2O12 were obtained by electrophoretic deposition (EPD) for the first time. To obtain a continuous and homogeneous coating on Ni and Ti substrates, iodine was added to the Li7La3Zr2O12 suspension. The EPD regime was developed to carry out the stable process of deposition. The influence of annealing temperature on phase composition, microstructure, and conductivity of membranes obtained was studied. It was established that the phase transition from tetragonal to low-temperature cubic modification of solid electrolyte was observed after its heat treatment at 400 °C. This phase transition was also confirmed by high-temperature X-ray diffraction analysis of Li7La3Zr2O12 powder. Increasing the annealing temperature leads to the formation of additional phases in the form of fibers and their growth from 32 (dried film) to 104 μm (annealed at 500 °C). The formation of this phase occurred due to the chemical reaction of Li7La3Zr2O12 films obtained by electrophoretic deposition with air components during heat treatment. The total conductivity of Li7La3Zr2O12 films obtained has values of ~10−10 and ~10−7 S cm−1 at 100 and 200 °C, respectively. The method of EPD can be used to obtain solid electrolyte membranes based on Li7La3Zr2O12 for all-solid-state batteries.
Keywords: all-solid-state batteries; electrophoretic deposition; thin-film electrolyte membrane; Li7La3Zr2O12; lithium-ion conductivity all-solid-state batteries; electrophoretic deposition; thin-film electrolyte membrane; Li7La3Zr2O12; lithium-ion conductivity
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MDPI and ACS Style

Lyalin, E.; Il’ina, E.; Kalinina, E.; Antonov, B.; Pankratov, A.; Pereverzev, D. Electrophoretic Deposition and Characterization of Thin-Film Membranes Li7La3Zr2O12. Membranes 2023, 13, 468. https://doi.org/10.3390/membranes13050468

AMA Style

Lyalin E, Il’ina E, Kalinina E, Antonov B, Pankratov A, Pereverzev D. Electrophoretic Deposition and Characterization of Thin-Film Membranes Li7La3Zr2O12. Membranes. 2023; 13(5):468. https://doi.org/10.3390/membranes13050468

Chicago/Turabian Style

Lyalin, Efim, Evgeniya Il’ina, Elena Kalinina, Boris Antonov, Alexander Pankratov, and Danil Pereverzev. 2023. "Electrophoretic Deposition and Characterization of Thin-Film Membranes Li7La3Zr2O12" Membranes 13, no. 5: 468. https://doi.org/10.3390/membranes13050468

APA Style

Lyalin, E., Il’ina, E., Kalinina, E., Antonov, B., Pankratov, A., & Pereverzev, D. (2023). Electrophoretic Deposition and Characterization of Thin-Film Membranes Li7La3Zr2O12. Membranes, 13(5), 468. https://doi.org/10.3390/membranes13050468

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