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SnO2 nanoparticles distributed on multi-walled carbon nanotubes and ball-milled graphite as anode materials of
Dong-Won Jung1, Jae-Hun Jeong, Kwang-Hyun Kim
1School of Chemical Engineering and Bioengineering, University of Ulsan, Daehak-Ro 102, Nam-Gu, Ulsan 680-749, Korea.
Abstract:
SnO2 nanoparticles were supported on ball-milled graphite (BMG) or carbon nanotubes (CNTs) using a chemical reduction method with ethylene glycol, and the electrochemical properties of the nanocomposites were evaluated as anode active materials of lithium-ion batteries. The BMG and CNTs contributed to an increase in both the capacity enhancement and cyclic stability compared to that of commercial graphite. In particular, the mixture electrode of SnO2/BMG:SnO2/CNT = 3:1 (in weight ratio) showed higher performance in the reversible capacity and cyclic stability than did the SnO2/BMG and SnO2/CNT electrodes. This might be resulted from the network formation for excellent electronic path by CNT distributed on SnO2/BMG composites.
