Izvorni znanstveni članak
https://doi.org/10.5599/jese.1191
Modeling and synthesis of carbon-coated LiMnPO4 cathode material: Experimental investigation and optimization using response surface methodology
Redouan El-Khalfaouy
; Materials, Processes, Catalysis and Environment Laboratory, High School of Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
Khadija Khallouk
; Materials, Processes, Catalysis and Environment Laboratory, High School of Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
Alae Elabed
; Microbial Biotechnology Laboratory, Faculty of Science and Technology, Sidi Mohammed Ben Abdellah University, Fez, Morocco
Abdellah Addaou
; Materials, Processes, Catalysis and Environment Laboratory, High School of Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
Ali Laajeb
; Materials, Processes, Catalysis and Environment Laboratory, High School of Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
Ahmed Lahsini
; Materials, Processes, Catalysis and Environment Laboratory, High School of Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
Sažetak
Nanostructured LiMnPO4 cathode materials for lithium-ion batteries (LIBs) have been successfully prepared by a modified solvothermal method under controlled conditions. Polyethylene glycol (PEG-10000) was used as a solvent to optimize the particle size/morphology and as a carbon conductive matrix. In order to investigate the effect of synthesis parameters such as concentration of PEG-10000, reaction time and reaction temperature on the LiMnPO4 phase purity, Response surface methodology was carried out to find variations in purity results across the composition. The purity of all materials was checked using HighScore software by comparing the matched lines score to ones of reference data. As a result, it has been found that the pure phospho-olivine material LiMnPO4 can be synthesized using the following optimum conditions: PEG concentration = 0.1 mol l-1, reaction time = 180 min, and reaction temperature = 250 °C. The as-prepared LiMnPO4 under optimum conditions delivered an initial discharge capacity of 128.8 mAh g-1 at 0.05 C‑rate. The present work provides insights and suggestions for optimizing synthesis conditions of this material, which has been considered the next promising cathode candidate for high-energy lithium-ion batteries.
Ključne riječi
Hrčak ID:
273958
URI
Datum izdavanja:
7.3.2022.
Posjeta: 470 *