Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition
Thin film technology of lithium-ion solid electrolytes should be developed for the creation of all-solid-state power sources. Solid electrolytes of the Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZ) family are one of the promising membr...
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| Format: | Article |
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MDPI AG
2023-11-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/12/2153 |
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| author | Efim Lyalin Evgeniya Il’ina Alexander Pankratov Tamara Kuznetsova Elena Kalinina |
| author_facet | Efim Lyalin Evgeniya Il’ina Alexander Pankratov Tamara Kuznetsova Elena Kalinina |
| author_sort | Efim Lyalin |
| collection | DOAJ |
| description | Thin film technology of lithium-ion solid electrolytes should be developed for the creation of all-solid-state power sources. Solid electrolytes of the Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZ) family are one of the promising membranes for all-solid-state batteries. LLZ films were obtained by electrophoretic deposition on Ti, Ni and steel substrates. The influence of different metal substrates on microstructure, phase composition and conductivity of the LLZ films after their heat treatment was studied. It was shown that the annealing of dried LLZ films in an Ar atmosphere leads to the transition from tetragonal modification to a low-temperature cubic structure. It was established that an impurity phase (Li<sub>2</sub>CO<sub>3</sub>) was not observed for LLZ films deposited on Ti foil after heat treatment, in contrast to films deposited on Ni and steel substrates. The highest lithium-ion conductivity values were achieved for the LLZ films annealed at 300 °C, 1.1 × 10<sup>−8</sup> S cm<sup>−1</sup> (at 100 °C) and 1.0 × 10<sup>−6</sup> S cm<sup>−1</sup> (at 200 °C). |
| first_indexed | 2024-03-08T20:32:27Z |
| format | Article |
| id | doaj.art-f6dec9ac5bc94d50b4a500692b148530 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-08T20:32:27Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-f6dec9ac5bc94d50b4a500692b1485302023-12-22T14:25:14ZengMDPI AGMicromachines2072-666X2023-11-011412215310.3390/mi14122153Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic DepositionEfim Lyalin0Evgeniya Il’ina1Alexander Pankratov2Tamara Kuznetsova3Elena Kalinina4Laboratory of Electrochemical Power Sources, Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, 620990 Yekaterinburg, RussiaLaboratory of Electrochemical Power Sources, Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, 620990 Yekaterinburg, RussiaLaboratory of Electrochemical Power Sources, Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, 620990 Yekaterinburg, RussiaLaboratory of Electrochemical Power Sources, Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, 620990 Yekaterinburg, RussiaLaboratory of Complex Electrophysic Investigations, Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, 620016 Yekaterinburg, RussiaThin film technology of lithium-ion solid electrolytes should be developed for the creation of all-solid-state power sources. Solid electrolytes of the Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZ) family are one of the promising membranes for all-solid-state batteries. LLZ films were obtained by electrophoretic deposition on Ti, Ni and steel substrates. The influence of different metal substrates on microstructure, phase composition and conductivity of the LLZ films after their heat treatment was studied. It was shown that the annealing of dried LLZ films in an Ar atmosphere leads to the transition from tetragonal modification to a low-temperature cubic structure. It was established that an impurity phase (Li<sub>2</sub>CO<sub>3</sub>) was not observed for LLZ films deposited on Ti foil after heat treatment, in contrast to films deposited on Ni and steel substrates. The highest lithium-ion conductivity values were achieved for the LLZ films annealed at 300 °C, 1.1 × 10<sup>−8</sup> S cm<sup>−1</sup> (at 100 °C) and 1.0 × 10<sup>−6</sup> S cm<sup>−1</sup> (at 200 °C).https://www.mdpi.com/2072-666X/14/12/2153electrophoretic depositionfilmsLi<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>lithium-ion conductivity |
| spellingShingle | Efim Lyalin Evgeniya Il’ina Alexander Pankratov Tamara Kuznetsova Elena Kalinina Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition Micromachines electrophoretic deposition films Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> lithium-ion conductivity |
| title | Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition |
| title_full | Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition |
| title_fullStr | Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition |
| title_full_unstemmed | Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition |
| title_short | Effect of Substrates on the Physicochemical Properties of Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Films Obtained by Electrophoretic Deposition |
| title_sort | effect of substrates on the physicochemical properties of li sub 7 sub la sub 3 sub zr sub 2 sub o sub 12 sub films obtained by electrophoretic deposition |
| topic | electrophoretic deposition films Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> lithium-ion conductivity |
| url | https://www.mdpi.com/2072-666X/14/12/2153 |
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