三维多孔Sn-Co合金负极制备及其电化学性能研究

CORC > 厦门大学 > 2010年第16卷

	三维多孔Sn-Co合金负极制备及其电化学性能研究; Preparation and Electrochemical Performance of Three-Dimensional Porous SnCo Alloy Electrode
	薛连杰 ; 黄令 ; 柯福生 ; 魏国祯 ; 郑小美 ; 李君涛 ; 樊小勇 ; 孙世刚 ; XUE Lian-jie ; HUANG Ling ; KE Fu-sheng ; WEI Guo-zhen ; ZHENG Xiao-mei ; LI Jun-tao ; Fan Xiao-yong ; SUN Shi-gang
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract8430.shtml
	2010-05-28
关键词	多孔铜锂离子电池 Sn-Co合金负极电化学阻抗谱 porous Cu lithium ion batteries SnCo alloy electrode anode electrochemical impedance spectroscopy
英文摘要	采用化学镀方法制备三维多孔铜.以其作为集流体,借助电沉积制备三维多孔Sn-Co合金电极.X-射线衍射(XRD),扫描电镜(SEM)分析表明,以多孔铜为集流体制备的SnCo合金电极主要存在CoSn2相和纯Sn相,为三维多孔结构.充放电结果显示,三维结构SnCo合金电极比平面铜集流体上镀得的SnCo合金电极表现出更优越的充放电性能.前者的首次放电(嵌锂)容量为636.3mAh/g,充电(脱锂)容量为528.7mAh/g,首次库仑效率为83.1%,70周后容量为529.5mAh·g-1,保持率为82.6%.此外,还应用电化学阻抗初步研究了三维Sn-Co合金电极在充放电过程发生的嵌脱锂过程.; Three-dimensional porous Cu film was prepared by electroless plating,and used as a current collector for preparation of three-dimensional structured SnCo alloy electrode,which was mainly prepared by an electrodeposition method,and composed of pure Sn and CoSn2 phases. Electrochemical experimental results show that three-dimensional structured SnCo alloy electrode exhibits much better cycleability than planar SnCo alloy electrode,with first discharge capacity and charge capacity of 636. 3 and 528. 7 mAh·g-1,respectively. After 70th cycling,capacity retention is 83. 1% with 529. 5 mAh·g-1. The lithiation process during first discharge was investigated by electrochemical impedance spectroscopy; 作者联系地址：厦门大学化学化工学院化学系;厦门大学固体表面物理化学国家重点实验室;; Author's Address: 1. Department of Chemistry,College of Chemistry and Chemical Engneering, 2. State Key Lab for Physical Chemistry of Solid Surface,Xiamen University,Xiamen 361005,Fujian,China
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/58344]
专题	2010年第16卷
推荐引用方式 GB/T 7714	薛连杰,黄令,柯福生,等. 三维多孔Sn-Co合金负极制备及其电化学性能研究, Preparation and Electrochemical Performance of Three-Dimensional Porous SnCo Alloy Electrode[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract8430.shtml,2010.
APA	薛连杰.,黄令.,柯福生.,魏国祯.,郑小美.,...&SUN Shi-gang.(2010).三维多孔Sn-Co合金负极制备及其电化学性能研究.http://electrochem.xmu.edu.cn/CN/abstract/abstract8430.shtml.
MLA	薛连杰,et al."三维多孔Sn-Co合金负极制备及其电化学性能研究".http://electrochem.xmu.edu.cn/CN/abstract/abstract8430.shtml (2010).