Electrochemical performance enhancement of perovskite-type Li0.3La0.57TiO3 ceramic electrolyte by controlling synthesis parameters
This study investigates the enhancement of the electrochemical performance of perovskite-type Li0.3La0.57TiO3 (LLTO) solid electrolytes through the optimization of synthesis parameters of a sol-gel process. The primary focus lies in examining the impact of calcination temperature on the structural,...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/382199 |
| Acceso en línea: | http://hdl.handle.net/10261/382199 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85206544216&doi=10.1016%2fj.jeurceramsoc.2024.116972&partnerID=40&md5=5c7c18fbf07e20c27fe3b9de96edb1c0 |
| Access Level: | acceso abierto |
| Palabra clave: | Grain boundary resistance Ionic conductivity Lithium-ion Perovskite Solid ceramic electrolyte |
| Sumario: | This study investigates the enhancement of the electrochemical performance of perovskite-type Li0.3La0.57TiO3 (LLTO) solid electrolytes through the optimization of synthesis parameters of a sol-gel process. The primary focus lies in examining the impact of calcination temperature on the structural, morphological, and electrochemical properties of LLTO. Our findings reveal that controlling the calcination temperature significantly influences the grain boundary resistance and overall ionic conductivity. The optimal calcination temperature was identified to be 800 °C, yielding a remarkable improvement in ionic conductivity at grain boundaries (0.88 mS/cm), and total ionic conductivity (0.54 mS/cm), at 30 °C. This enhancement is attributed to the refined microstructure, increased density, and reduced porosity, which collectively facilitate lithium-ion diffusion. These advancements in LLTO electrolytes present promising implications for their application in all-solid-state lithium-ion batteries, offering a safer and more efficient alternative to conventional liquid electrolyte systems. © 2024 The Authors |
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