Paper Title:
Synthesis and Lithium Storage Performance of Sn-Co/C Composite Anode Materials for Li-Ion Battery
  Abstract

The Sn-Co/C composites as novel anode materials for lithium-ion batteries were prepared by solid-state sintering. The influences of carbon black content in Sn-Co/C composite on material structures and the electrochemical properties were investigated. Structure analyses show that carbon black mainly is physically mixed with CoSn phase and could inhibit the growth of grain of CoSn phase, avoid the formation of large particles and increase the specific surface area obviously. Electrochemical analyses show that the refinement of grain size or particle size could contribute to improve the discharge capacity and cycle performance, but the increasing of specific surface area could reduce the charge-discharge efficiency. When carbon black content is 6 wt.%, the discharge capacity reach its maximum, which is 275 mAh/g, the initial charge-discharge efficiency is 52.8% and the retention of discharge capacity is 72.8% after 30 cycles.

  Info
Periodical
Advanced Materials Research (Volumes 299-300)
Edited by
Jianzhong Wang and Jingang Qi
Pages
516-519
DOI
10.4028/www.scientific.net/AMR.299-300.516
Citation
S. B. Yang, D. Shen, X. G. Wu, "Synthesis and Lithium Storage Performance of Sn-Co/C Composite Anode Materials for Li-Ion Battery", Advanced Materials Research, Vols. 299-300, pp. 516-519, 2011
Online since
July 2011
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Price
$32.00
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