Kalaiselvi, N. and Doh, C.H. and Moon, I.S. (2007) An Insight in to the Synthesis and Anode Performance Behavior of LiNiVO4 Compounds. Journal of New Materials for Electrochemical Systems, 10. pp. 153-159. ISSN 1480-2422

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Abstract

LiNiVO4, popularly known as a 5V category cathode has been evaluated for the extent of anode performance capability against lithium metal. Despite arguable existence of tunnels to exhibit good electrochemical activity, the compound has been found to show a first discharge capacity of ~620 mAh/g, followed by a steady reversible capacity of a at least 320mAh/g, up to 50 cycles, when cycled at C/10 rate. Also, an increase in the specific capacity valued has been observed after 20 cycles, presumably due to the electrochemical grinding of anode electrode material upon subsequent cycling process. Such interesting electrochemical characteristics of crystalline LiNiVO4 anodes, resulting from the complete amorphisation of the same at a slower rate (C/10) is found to be less obvious, when cycled at C/5 rate, thus confirming the need for slower rate of first discharge process. The effect of synthesis methodology, role of calcinations conditions and the mode of discharge of LiNiVO4 are found to have better control over the observed electrochemical behavior of synthesized LiNiVO4 anode material.

Item Type:	Article
Uncontrolled Keywords:	crystalline LiNiVO4; combustion; amorphisation; specific capacity; cyclability
Subjects:	Lithium batteries
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	01 Mar 2012 07:00
Last Modified:	01 Mar 2012 07:00
URI:	http://cecri.csircentral.net/id/eprint/780

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