Improved electrochemical performance of the Silicon/Graphite-Tin composite anode material by modifying the surface morphology of the Cu current collector

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	Improved electrochemical performance of the Silicon/Graphite-Tin composite anode material by modifying the surface morphology of the Cu current collector
	J. B. Wu; Z. W. Zhu; H. W. Zhang; H. M. Fu; H. Li; A. M. Wang; H. F. Zhang; Z. Q. Hu
	2014
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	146 页码:322-327
摘要	Electrochemical performance of the as-prepared silicon based composite electrode for lithium ion battery can be enhanced by modifying the surface morphology of the Cu foil used as the anode current collector. Increasing the roughness of the Cu foil, contributes to the strong interface adhesion between the anode current collector and the silicon based active composite material slurry layer. The electrode with surface morphology modified Cu current collector delivers higher specific capacity and exhibits better rate capability than that with unmodified Cu current collector. It is also found that the cycle-life of the silicon based composite electrode has been significantly improved by using a surface morphology modified anode current collector. The enhanced cyclability is attributed to the good electrical contact integrality between the active materials and the anode current collector. The improved electrochemical performance indicates that optimizing the anode current collector system can be a valuable alternative for improving electrochemical properties of lithium ion rechargeable batteries. (C) 2014 Elsevier Ltd. All rights reserved.
部门归属	[wu, jinbo ; zhu, zhengwang ; zhang, hongwei ; fu, huameng ; li, hong ; wang, aimin ; zhang, haifeng ; hu, zhuangqi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; zhang, hf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; hfzhang@imr.ac.cn
关键词	Lithium Ion Rechargeable Batteries Cu Current Collector Surface Morphology Electrical Contact Electrochemical Performance Li-ion Batteries Lithium Secondary Batteries Graphite Composite Silicon Capacity Storage Nanocomposites Nanofibers Particles
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73443
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. B. Wu,Z. W. Zhu,H. W. Zhang,et al. Improved electrochemical performance of the Silicon/Graphite-Tin composite anode material by modifying the surface morphology of the Cu current collector[J]. Electrochimica Acta,2014,146:322-327.
APA	J. B. Wu.,Z. W. Zhu.,H. W. Zhang.,H. M. Fu.,H. Li.,...&Z. Q. Hu.(2014).Improved electrochemical performance of the Silicon/Graphite-Tin composite anode material by modifying the surface morphology of the Cu current collector.Electrochimica Acta,146,322-327.
MLA	J. B. Wu,et al."Improved electrochemical performance of the Silicon/Graphite-Tin composite anode material by modifying the surface morphology of the Cu current collector".Electrochimica Acta 146(2014):322-327.