Copper-Antimony Alloy-Nanoparticle Clusters Supported on Porous Cu Networks for Electrochemical Energy Storage

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• 作者：Chi Zhang ; Kai-Qi Xu ; Wen Zhou ; Xue-Feng Lu ; Rui-Ying Li and Gao-Ren Li
• 刊名：Particle & Particle Systems Characterization
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：33
• 期：8
• 页码：553-559
• 全文大小：2617K
• ISSN：1521-4117

文摘

Novel copper–antimony (Cu₂Sb) alloy–nanoparticle clusters (CANCs) supported on porous Cu networks are successfully synthesized by electrodeposition. The porous structures in CANCs can provide adequate void space to accommodate volume change during charging/discharging, and accordingly can prevent the pulverization and electrical isolation, enabling long-term cycling. The porous Cu networks as supports can provide large surface areas for the growth of CANCs, excellent electron transportation for charge/discharge, and an efficient “buffer zone” for volume fluctuation of Cu₂Sb alloys. The CANCs show superior electrochemical performance, such as high and reversible capacity and superior long-term cycle stability. With ease of large scale fabrication, low-cost, environmentally friendly, and superior electrochemical characteristics, the CANCs qualify as a promising candidate for anode materials of Li-ion batteries with high performance.