Artículo
Electrochemical comparison of LiFePO4 synthesized by a solid-state method using either microwave heating or a tube furnace
Calderon, Cecilia Andrea
; Thomas, Jorge Enrique
; Lener, German
; Barraco Diaz, Daniel Eugenio
; Visintin, Arnaldo
Fecha de publicación:
10/2017
Editorial:
Springer
Revista:
Journal of Applied Electrochemistry
ISSN:
0021-891X
e-ISSN:
1572-8838
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
LiFePO4/C composites were successfully prepared by a solid-state reaction in order to compare conventional heat treatment and microwave-assisted synthesis at different times of sintering. Microwave-assisted synthesis is interesting due to the fact that energy and inert gas consumption can be greatly reduced with respect to the conventional treatment, resulting in a cheaper synthesis method. The relationship between particle morphology and crystal structure using the composite synthesis was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) with refinements of the crystal structures carried out by the Rietveld method. In addition, the electrochemical performances were evaluated using constant current charge/discharge tests, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). It was observed that the samples prepared by microwave heating had a better electrochemical behavior than those prepared in a conventional furnace. Also, in general, a higher sintering time improved the electrochemical behavior, but with increased particle sizes, and consequently, a decreased specific capacity.
Palabras clave:
Cathode
,
Lithium Iron Phosphate
,
Lithium-Ion Battery
,
Microwave
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Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos(INFAP)
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Articulos(INIFTA)
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Citación
Calderon, Cecilia Andrea; Thomas, Jorge Enrique; Lener, German; Barraco Diaz, Daniel Eugenio; Visintin, Arnaldo; Electrochemical comparison of LiFePO4 synthesized by a solid-state method using either microwave heating or a tube furnace; Springer; Journal of Applied Electrochemistry; 47; 10; 10-2017; 1179-1188
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