IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Synthesis and characterization of Sn-based anodic materials for lithium ion batteries S. Smrekar1, J. E. Thomas2, C. A. Calderón1, D. E. Barraco1, A. Visintin2
Autor/es:
JORGE THOMAS; VISINTIN A.; S. SMREKAR; DANIEL BARRACO; CECILIA CALDERON
Lugar:
JUJUY
Reunión:
Workshop; IWLIME International Work shop,; 2016
Institución organizadora:
IWLIME International Work shop,
Resumen:
In this work, we present the chemical synthesis of materials based in tin and carbon, which exhibits higher capacities than the commercially used graphite. Through chemical reduction of a solution of SnCl2, nanoparticles of Sn are embedded into different carbonous substrates. The resulting materials are characterized physically and electrochemically, using techniques such as X Ray diffraction, voltammetry, charge-discharge galvanostatic cycling, Electrochemical Impedance Spectroscopy, SEM and TEM microscopy. The samples are labeled Sn-BH-SP, Sn-BH-G and Sn-BH-NT, according to the carbonous precursor (Super P carbon, graphite and carbon nanotubes (100 nm diameter), respectively). The materials obtained by this method have capacities close to 500 mAhg-1, which are higher than the commercially used graphite, and exhibit a good cyclability up to 100 cycles, as shown in figure 1, which constitutes an improvement respect the conventional Sn and SnO2 based electrodes.