纳米锡/硬碳复合材料作为嵌锂负极的研究

doi:10.61558/2993-074X.1943

电化学（中英文） ›› 2009, Vol. 15 ›› Issue (1): 5-8. doi: 10.61558/2993-074X.1943

纳米锡/硬碳复合材料作为嵌锂负极的研究

郭炳焜;舒杰;唐堃;白莹;王兆翔;陈立泉;

中国科学院物理研究所固态离子实验室;

收稿日期:2009-02-28 修回日期:2009-02-28 出版日期:2009-02-28 发布日期:2009-02-28

Nano-Sn/Hard Carbon Composite as Anode Material for Lithium Ion Batteries

GUO Bing-kun,SHU Jie,TANG Kun,BAI Ying,WANG Zhao-xiang,CHEN Li-quan

(Laboratory for Solid State Ionics,Institute of Physics,Chinese Academy ofSciences,Beijing 100190,China

Received:2009-02-28 Revised:2009-02-28 Published:2009-02-28 Online:2009-02-28

摘要/Abstract

摘要： 利用金属铁和钴纳米颗粒的催化活化作用,制备了多孔硬碳球.应用聚焦离子束切割技术,观察到扩孔后的硬碳球中充满彼此连通的发达中孔.在此多孔硬碳球中填入纳米锡(Sn)颗粒,对复合材料的电化学性能进行了测试.

关键词: 多孔硬碳球, 纳米Sn, 复合, 负极, 锂离子电池

Abstract: The tin(Sn) nano particles were embedded into the mesopores of hard carbon spherules(HCS) to form a composite anode material for lithium ion batteries.The structure of the obtained composite was characterized by X-ray diffraction(XRD) while its electrochemical performances were evaluated with galvanostatic cycling.It is found that the embedding Sn nanoparticles into porous HCS not only result in a composite material with high lithium storage capacity and capacity retention,but also increase the initial coulombic efficiency of the composite.Based on the infrared spectroscopic analysis,the enhanced initial coulombic efficiency is attributed to the inductive decomposition of the ROCO2Li species in the solid electrolyte interphase(SEI) layer by the tin nano particles in the composite.

Key words: porous hard carbon spherule, tin, composite, anode, lithium ion battery

中图分类号:

TM910.4

郭炳焜, 舒杰, 唐堃, 白莹, 王兆翔, 陈立泉, . 纳米锡/硬碳复合材料作为嵌锂负极的研究[J]. 电化学（中英文）, 2009, 15(1): 5-8.

GUO Bing-kun, SHU Jie, TANG Kun, BAI Ying, WANG Zhao-xiang, CHEN Li-quan. Nano-Sn/Hard Carbon Composite as Anode Material for Lithium Ion Batteries[J]. Journal of Electrochemistry, 2009, 15(1): 5-8.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.1943

https://electrochem.xmu.edu.cn/CN/Y2009/V15/I1/5

参考文献

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纳米锡/硬碳复合材料作为嵌锂负极的研究

Nano-Sn/Hard Carbon Composite as Anode Material for Lithium Ion Batteries

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