The synthesis and electrochemical performance of Cu6Sn5 intermetallic nanoparticles as anode material in Li ion batteries
The synthesis and electrochemical performance of Cu6Sn5 intermetallic nanoparticles as anode material in Li ion batteries
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锂离子电池负极材料Cu6Sn5纳米金属间化合物的合成及电化学性能
DOI:
10.3139/146.111398
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发表时间:
2016-08
影响因子:
0.8
通讯作者:
Zhi Zheng
中科院分区:
文献类型:
--
作者:
Congxu Zhu;Jing Li;Fusheng Liu;Zhi Zheng
Abstract Cu6Sn5 intermetallic nanoparticles have been successfully prepared by a simple reduction method. The crystallinity and morphology of the synthesized products were characterized by means of X-ray diffraction and scanning electron microscopy, respectively. When used as anode material, Cu6Sn5 intermetallic nanoparticles demonstrated an initial discharge capacity of 3368.2 mAh · g−1 and stable capacities of 840 mAh · g−1 after 70 cycles between 0.05 and 2.5 V at a current density of 100 mA · g−1. The charge–discharge process of Cu6Sn5 intermetallic nanoparticles was also evaluated using cyclic voltammetry. The results indicated Cu6Sn5 intermetallic nanoparticles may be an ideal anode material for Li ion batteries.
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