Artículo
Numerical simulations of cyclic voltammetry for lithium-ion intercalation in nanosized systems: Finiteness of diffusion versus electrode kinetics
Gavilán Arriazu, Edgardo Maximiliano
; Mercer, M.P.; Pinto, Oscar Alejandro
; Oviedo, Oscar Alejandro
; Barraco Diaz, Daniel Eugenio
; Hoster, H. E.; Leiva, Ezequiel Pedro M.
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Fecha de publicación:
16/11/2020
Editorial:
Springer
Revista:
Journal of Solid State Electrochemistry (print)
ISSN:
1432-8488
e-ISSN:
1433-0768
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The voltammetric behavior of Li+ intercalation/deintercalation in/from LiMn2O4 thin films and single particles is simulated, supporting very recent experimental results. Experiments and calculations both show that particle size and geometry are crucial
for the electrochemical response. A remarkable outcome of this research is that higher potential sweep rates, of the order of several millivolts per second, may be used to characterize nanoparticles by voltammetry sweeps, as compared with macroscopic systems. This is in line with previous conclusions drawn for related single particle systems using kinetic Monte Carlo simulations.
The impact of electrode kinetics and finite space diffusion on the reversibility of the process and the finiteness of the diffusion in ion Li / LiMn2O4 (de)intercalation is also discussed in terms of preexisting modeling.
Palabras clave:
SIMULATIONS
,
VOLTAMETRY
,
LITHIUM
,
INTERCALATION
Archivos asociados
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Identificadores
Colecciones
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos(INBIONATEC)
Articulos de INSTITUTO DE BIONANOTECNOLOGIA DEL NOA
Articulos de INSTITUTO DE BIONANOTECNOLOGIA DEL NOA
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Gavilán Arriazu, Edgardo Maximiliano; Mercer, M.P.; Pinto, Oscar Alejandro; Oviedo, Oscar Alejandro; Barraco Diaz, Daniel Eugenio; et al.; Numerical simulations of cyclic voltammetry for lithium-ion intercalation in nanosized systems: Finiteness of diffusion versus electrode kinetics; Springer; Journal of Solid State Electrochemistry (print); 24; 11-12; 16-11-2020; 3279-3287
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