Preparation and Structural Stability of LiFePO4|Ga-LLZO Composite Cathode Material Heat-Treated at Intermediate Temperatures
| Autor: | Pearl Jamela Diamansil, John Carlo Palomares, Renz Marion Garcia, Jessa Hablado, Rinlee Butch M. Cervera |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Phase stability Mechanical Engineering Composite number 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Cathode 0104 chemical sciences law.invention Mechanics of Materials law Structural stability Heat treated General Materials Science Composite cathode Composite material 0210 nano-technology |
| Zdroj: | Materials Science Forum. 987:70-74 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.987.70 |
| Popis: | In this study, cathode and lithium-ion conducting solid electrolyte composite pellet with 1:1 wt. % composition of LiFePO4 and Li7-3XGaxLa3Zr2O12 (x = 0.1) (LiFePO4|Ga-LLZO) was prepared via solid-state reaction. The aim of the study is to investigate the phase stability between LiFePO4 cathode and Ga-LLZO solid electrolyte material when heat treated at 400 to 600 °C. The as-mixed LiFePO4|Ga-LLZO composite was characterized by TG/DTA and the heat treated sample was then analyzed for its structure using XRD and compared to the just as-mixed composite. XRD patterns of the heat treated composite pellet showed that it retains its as-mixed phases of LiFePO4 and Ga-LLZO when sintered below 500 °C under Ar gas flow environment. However, upon heat treatment at 600 °C, the sample already reacted and decomposed with the formation of other phases. |
| Databáze: | OpenAIRE |
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