期刊
ELECTROCHIMICA ACTA
卷 52, 期 4, 页码 1538-1541出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2006.01.084
关键词
Cu2Sb alloy anode; chemical reduction; nano-scale; Li-ion batteries
A novel process was attempted to prepare nano-scale Cu2Sb alloy powders as anode materials for Li-jon batteries. The preparation started with chemical reduction Of Cu2Sb in an aqueous solution with sodium citrate as a complexing agent and KBH4 as a reducer. The analysis of scanning electron microscopy and X-ray diffraction showed that as-prepared nano-scale Cu2Sb powders presented tetragonal structure with particle size of 50-70 nm. Cycling between 0 and 1.2 V, the nano-scale Cu2Sb alloy showed good cyclability with a stable specific capacity of 200 mAhg(-1) within 25 cycles. (c) 2006 Elsevier Ltd. All rights reserved.
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