TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries
This study focused on achieving high ionic conductivity in Li-La-TiO (LLTO) solid electrolyte. To enhance ionic conductivity, the synthesis reaction was optimized by controlling the composite crystal structure of TiO2 at the B-site of the perovskite (ABO3) structured LLTO, incorporating rutile, broo...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-10-01
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| Series: | Journal of Asian Ceramic Societies |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21870764.2024.2403258 |
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| author | Minjeong Kim Wolil Nam Jihye Seo Jihyun Park Seokha Heo Yuna Hwang Sang-Soo Chee Soobeom Lee Seungchan Cho Geon−hyoung An Yangdo Kim Moonhee Choi |
| author_facet | Minjeong Kim Wolil Nam Jihye Seo Jihyun Park Seokha Heo Yuna Hwang Sang-Soo Chee Soobeom Lee Seungchan Cho Geon−hyoung An Yangdo Kim Moonhee Choi |
| author_sort | Minjeong Kim |
| collection | DOAJ |
| description | This study focused on achieving high ionic conductivity in Li-La-TiO (LLTO) solid electrolyte. To enhance ionic conductivity, the synthesis reaction was optimized by controlling the composite crystal structure of TiO2 at the B-site of the perovskite (ABO3) structured LLTO, incorporating rutile, brookite, and anatase phases. The solid-phase LLTO, synthesized utilizing the core – shell structured composite-phase TiO2 developed in this study for the first time, successfully transformed its crystal structure to β-LLTO (tetragonal to cubic). This resulted in a significant improvement in ionic conductivity (i.e. 1.11 × 10−4 Scm−1). The study findings confirmed that the composite crystal structure TiO2 used in the solid-phase synthesis of LLTO induced an increase in oxygen vacancies during the synthesis process, thereby reducing the step-free energy required for the final synthesis. |
| format | Article |
| id | doaj-art-01c2275cdaad44c5949e3a5620bfa4c4 |
| institution | Kabale University |
| issn | 2187-0764 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj-art-01c2275cdaad44c5949e3a5620bfa4c42025-01-23T12:06:46ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642024-10-0112429630510.1080/21870764.2024.2403258TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteriesMinjeong Kim0Wolil Nam1Jihye Seo2Jihyun Park3Seokha Heo4Yuna Hwang5Sang-Soo Chee6Soobeom Lee7Seungchan Cho8Geon−hyoung An9Yangdo Kim10Moonhee Choi11Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaDepartment of Energy System Engineering, Gyeongsang National University, Jinju, Republic of KoreaComposites Research Division, Korea Institute of Materials Science, Changwon, KoreaDepartment of Energy System Engineering, Gyeongsang National University, Jinju, Republic of KoreaSchool of Materials Science and Engineering, Pusan National University, Busan, KoreaElectronic Convergence Division, Korea Institute of Ceramic Engineering & Technology, Jinju, KoreaThis study focused on achieving high ionic conductivity in Li-La-TiO (LLTO) solid electrolyte. To enhance ionic conductivity, the synthesis reaction was optimized by controlling the composite crystal structure of TiO2 at the B-site of the perovskite (ABO3) structured LLTO, incorporating rutile, brookite, and anatase phases. The solid-phase LLTO, synthesized utilizing the core – shell structured composite-phase TiO2 developed in this study for the first time, successfully transformed its crystal structure to β-LLTO (tetragonal to cubic). This resulted in a significant improvement in ionic conductivity (i.e. 1.11 × 10−4 Scm−1). The study findings confirmed that the composite crystal structure TiO2 used in the solid-phase synthesis of LLTO induced an increase in oxygen vacancies during the synthesis process, thereby reducing the step-free energy required for the final synthesis.https://www.tandfonline.com/doi/10.1080/21870764.2024.2403258All-solid-state batterylithium–lanthanum–titanium oxide solid electrolytecore–shell TiO2solid-state reaction |
| spellingShingle | Minjeong Kim Wolil Nam Jihye Seo Jihyun Park Seokha Heo Yuna Hwang Sang-Soo Chee Soobeom Lee Seungchan Cho Geon−hyoung An Yangdo Kim Moonhee Choi TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries Journal of Asian Ceramic Societies All-solid-state battery lithium–lanthanum–titanium oxide solid electrolyte core–shell TiO2 solid-state reaction |
| title | TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries |
| title_full | TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries |
| title_fullStr | TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries |
| title_full_unstemmed | TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries |
| title_short | TiO2 phase-controlled synthesis of Li-La-TiO solid electrolytes for advanced all-solid-state batteries |
| title_sort | tio2 phase controlled synthesis of li la tio solid electrolytes for advanced all solid state batteries |
| topic | All-solid-state battery lithium–lanthanum–titanium oxide solid electrolyte core–shell TiO2 solid-state reaction |
| url | https://www.tandfonline.com/doi/10.1080/21870764.2024.2403258 |
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