Doh, C.H. and Shin, H.M. and Kim, D.H. and Jeong, Y.D. and Moon, S.I. and Jin, B.S. and Kim, H.S. and Kim, K.W. and Oh, D.H. and Veluchamy, A. (2008) A new composite anode, Fe–Cu–Si/C for lithium ion battery. Journal of Alloys and Compounds, 461 (1-2). pp. 321-325. ISSN 0925-8388

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Abstract

A new anode composite material comprising Fe, Cu and Si in conjunction with graphite has been obtained through high energy ball milling (HEBM) technique. The X-ray diffraction (XRD) analysis predicts that the milled composite particles remain in the elemental state and the scanning electron microscope (SEM) pictures show that the electrode annealed at 200 ◦C consists of well-defined aggregate particulates with interspaces. The composite electrode exhibits high initial discharge and charge capacity of 809 and 464 mAh g−1, respectively with a sustainable reversible capacity >385 mAh g−1 at 30th cycle and maintains high coulombic efficiency >95% after 4th cycle. As the annealing temperature is changed from 110 to >150 ◦C, the irreversible capacity increased from 158 to 340 mAh g−1.

Item Type:	Article
Uncontrolled Keywords:	High energy mechanical milling; Fe–Cu–Si/graphite composite; Anode; Li-ion battery; Irreversible capacity loss
Subjects:	Lithium batteries Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	18 Jan 2012 11:18
Last Modified:	18 Jan 2012 11:18
URI:	http://cecri.csircentral.net/id/eprint/219

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