Synthesis and electrochemical behaviour of tin oxide for use as anode in lithium rechargeable batteries

Authors: Sivashanmugam, A.; Premkumar, T.; Gopukumar, S.; Renganathan, N.; Wohlfahrt-mehrens, M.; Garche, J.

Source: Journal of Applied Electrochemistry, Volume 35, Number 11, November 2005 , pp. 1045-1050(6)

Publisher: Springer

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Abstract:

SnO₂ was synthesized by precipitation from an aqueous solution of SnCl₄ and NH₄OH, followed by a heat treatment. The product was characterized by XRD, SEM, FTIR spectroscopy, DSC and TG. The XRD patterns suggest the formation of phase-pure cassiterite form of SnO₂. SEM imaging indicates that the particles obtained are of sub-micron size with good morphology and size control (around ∼300 nm). Electrodes were fabricated by a slurry-coating procedure and the electrochemical performances of these electrodes were evaluated using galvanostatic cycling tests. The results suggest that the heat treated SnO₂ samples deliver higher capacities when cycled between 1.0 and 0.1 V vs. Li⁺/Li and showed coulombic efficiencies of more than 98% in the tenth cycle.

Keywords: irreversible capacity; Li-Sn alloy; lithium battery anode; tin oxide anode

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10800-005-9043-5

Affiliations: 1: Email: deepika_41@rediffmail.com

Publication date: 2005-11-01