Rajakumar, S. and Thirunakaran, R. and Sivashanmugam, A. and Yamaki, J. and Gopukumar, S. (2009) Electrochemical Behavior of LiM0.25Ni0.25Mn1.5O4 as 5 V Cathode Materials for Lithium Rechargeable Batteries. Journal of the Electrochemical Society, 156 (3). pp. 246-252. ISSN 0013-4651

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Glycine-assisted sol-gel–synthesized multiple-doped spinels, LiM0.25Ni0.25Mn1.5O4 M = Cr, Fe, and Co have been studied as 5 V cathode materials. The sol-gel technique provides homogeneity, high purity, lower processing temperature, controlled particle size, and morphology. The synthesized samples were subjected to physical characterization studies, viz., thermogravimetric and differential thermal analysis, X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical charge–discharge studies. Galvanostatic charge–discharge studies of the samples reveal that LiFe0.25Ni0.25Mn1.5O4 using glycine as a chelating agent delivers a stable capacity of 120 mAh g−1 even after 20 cycles when cycled between 3 and 5 V.

Item Type: Article
Subjects: Lithium batteries
Depositing User: TTBD CECRI
Date Deposited: 20 Jan 2012 15:58
Last Modified: 20 Jan 2012 15:58
URI: http://cecri.csircentral.net/id/eprint/491

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