Electrochemical Performance of Tin-Aluminum Thin Film Anodes for Lithium Ion Battery

Abstract:

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Tin and tin-aluminum thin film anodes for lithium ion battery are deposited on a copper substrate by radio frequency (RF)-magnetron sputtering at room temperature. Charge/discharge characteristics are compared. It is indicateds that tin-aluminum anode has higher capacity and better cycle performance than that of pure tin anode. XRD shows that tThe tin-aluminum thin film is a mischcrystal alloy. The first discharge capacities of tin and tin-aluminum are 750mAh/g and 1205mAh/g respectively. After 30 times charge/discharge, the specific capacity of tin-aluminum anode is 780mAh/g. , compared with 530mAh/g for pure tin anode. From above results, tThe mischcrystal alloying tin with aluminum has effectively improved the electrochemical performance of tin anode. The tin-aluminum mischcrystal alloy will be a promising anode material for lithium ion battery.

Info:

Periodical:

Materials Science Forum (Volumes 610-613)

Main Theme:

Edited by:

Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou

Pages:

467-471

DOI:

10.4028/www.scientific.net/MSF.610-613.467

Citation:

H. W. Yu et al., "Electrochemical Performance of Tin-Aluminum Thin Film Anodes for Lithium Ion Battery", Materials Science Forum, Vols. 610-613, pp. 467-471, 2009

Online since:

January 2009

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$35.00

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