期刊
MATERIALS LETTERS
卷 65, 期 23-24, 页码 3377-3379出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.07.008
关键词
Nanoparticles; Crystal growth; Molten-salt; Tin oxide; Lithium ion battery
SnO2 nanoparticles were synthesized by a simple, easily scaled-up molten-salt decomposition method with SnSO4 as the molten salt and the reactive phase. During the synthesis process, the undecomposed molten SnSO4 makes it possible to obtain SnO2 nanoparticles by serving as the dispersion medium and keeping the particles from aggregation. The as-prepared SnO2 had a tetragonal rutile structure with an average particle size of 50 nm. When used as anode materials for lithium ion battery. SnO2 nanoparticles retained the charge capacity still as high as 402 mAh g(-1) at a current density of 156 mA g(-1) after 40 cycles. Moreover, cyclic voltammograms tests showed the formation/deformation of Li2O was partially reversible. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
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