INVESTIGADORES
VISINTIN Arnaldo
artículos
Título:
On the effect of the carbonaceous substrate in the nucleation of Sn nanoparticles for Li-ion anodes: experiments and first principles calculations
Autor/es:
SACHA SMREKAR; MARTIN E. ZOLOFF MICHOFF; JORGE E. THOMAS; CECILIA A. CALDERÓN; LUCAS M. FARIGLIANO; VISINTIN A.; EZEQUIEL LEIVA; DANIEL BARRACO
Revista:
JOURNAL OF SOLID STATE ELECTROCHEMISTRY (PRINT)
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2018 vol. 22 p. 1721 - 1733
ISSN:
1432-8488
Resumen:
The nucleation of Sn nanoparticles by chemical reduction was studied using three different carbonaceous substrates, to obtain Sn/C composites. When used as active materials in anodes for lithium-ion batteries, these composites displayed higher capacitiesthan commercially used graphite, and showed a good cyclability. The differences in morphology, capacity, cyclability, and diffusion between the resulting materials are highlighted. The resulting materials were characterized by charge-discharge cycling,voltammetry, EIS, SEM, and TEM microscopy. It was found that the substrate has a determinant effect on the deposition of Sn.This effect is interpreted in terms of the relative adsorption energies of a single Sn atom obtained from DFT calculations.
