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.
Keywords
porous hard carbon spherule, tin, composite, anode, lithium ion battery
Publication Date
2009-02-28
Online Available Date
2009-02-28
Revised Date
2009-02-28
Received Date
2009-02-28
Recommended Citation
Bing-kun GUO, Jie SHU, Kun TANG, Ying BAI, Zhao-xiang WANG, Li-quan CHEN.
Nano-Sn/Hard Carbon Composite as Anode Material for Lithium Ion Batteries[J]. Journal of Electrochemistry,
2009
,
15(1): 5-8.
DOI: 10.61558/2993-074X.1943
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol15/iss1/2
References
[1]Egashira Minato,Takatsuji Hideyasu,Okada Shigeto,et al.Properties of containing Sn nanoparticles activatedcarbon fiber for a negative electrode in lithium batteries[J].Journal of Power Sources,2002,107:56-60.
[2]Li Hong,Wang Qing,Chen Li-quan,et al.NanosizedSnSb alloy pinning on hard non-graphitic carbon spher-ules as anode materials for a Li ion battery[J].Chem-istry of Materials,2002,14:103-108.
[3]Wu Xiao-dong,Wang Zhao-xiang,Chen Li-quan,etal.Surface compatibility in a carbon-alloy compositeand its influence on the electrochemical performance ofLi/ion batteries[J].Carbon,2004,42:1965-1972.
[4]Yang Rui-zhi,Wang Zhao-xiang,Liu Jian-yong,et al.Nano Co3O4particles embedded in porous hard carbonspherules as anode material for Li-ion batteries[J].Electrochemical and Solid-State Letters,2004,7:A496-A499.
[5]Marsh H,Diez MA,Kuo K,et al.Fundamental issuesin control of carbon gasification reactivity[J].KluwerAcademic Publishers,1991,205-206.
[6]Liu Zhi-chang,Ling Li-cheng,Lu Chun-xiang,et al.Study on mechanism of mesopore formation of pitch-based spherical activated carbon using iron as catalyst[J].Journal of Fuel Chemistry and Technology,2000,4:320-323.
[7]Wang Qing,Li Hong,Chen Li-quan,et al.Monodis-persed hard carbon spherules with uniform nanopores[J].Carbon,2001,39:2211-2214.
[8]Choi Wanuk,Lee Jeong-yong,Jung Bok-hwan,et al.Microstructure and electrochemical properties of a nano-meter-scale tin anode for lithium secondary batteries[J].Journal of Power Sources,2004,136:154-159.
[9]Aurbach D,Markovsky B,Weissman I,et al.On thecorrelation between surface chemistry and performanceof graphite negative electrodes for Li ion batteries[J].Electrochimica Acta,1999,45:67-86.
[10]WangZhao-xiang,HuangXue-jie,Chen Li-quan.Characterization of spontaneous reactions of LiCoO2with electrolyte solvent for lithium-ion batteries[J].Journal of Electrochemical Society,2004,151:A1641-A1652.
[11]Guo Bing-kun,Shu Jie,Tang Kun,et al.Nano-Sn/hard carbon composite anode material with high-initialcoulombic efficiency[J].Journal of Power Sources,2008,177:205-210.
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Nanoscience and Nanotechnology Commons, Physical Chemistry Commons, Power and Energy Commons
