Ganesan, M. and Dhananjeyan, M.V.T. and Sarangapani, K.B. and Renganathan, N.G. (2007) Solid state rapid quenching method to synthesize micron size Li4Ti5O12. Journal of Electroceramics, 18. pp. 329-337.

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Abstract

Li4Ti5O12 spinel has been synthesized by a new solid-state rapid quenching method adopting solid-state synthesis followed by quenching leading to stoichiometric phase pure micron size material. By simple freezing of the solid-state reaction occurring at 800 °C using ice cold medium, micron sized particulates are achieved. The powder has been characterized by X-ray diffraction, SEM, etc. By this synthesis uniform morphology has been attained and particle size of fine particulates of Li4Ti5O12 of an average size of 1–2 μm has been achieved. High rate characteristic and excellent cyclability are the highlights of newly synthesized material. Diffusion coefficient of Lithium has been evaluated and it is found to be 1.4×10−15 cm2 s−1. A maximum reversible lithium insertion capacity of 154 mAhg−1 at 2 C rate has been achieved. Results are discussed in this paper.

Item Type:	Article
Uncontrolled Keywords:	Li4Ti5O12; Quenchmethod; Cyclicvoltammetry; a.c. impedance; Charge–discharge; Dielectric
Subjects:	Lithium batteries
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	29 Mar 2012 07:51
Last Modified:	29 Mar 2012 07:51
URI:	http://cecri.csircentral.net/id/eprint/749

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