Hwang, S.W. and Umar, A. and Kim, S.H. and Al-Sayari, S.A. and Abaker, M. and Al-Hajry, A. and Stephan, A.M. (2011) Low-temperature growth of well-crystalline Co3O4 hexagonal nanodisks as anode material for lithium-ion batteries. Electrochimica Acta, 56 (24). pp. 8534-8538. ISSN 0013-4686

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Abstract

Uniform hexagonal-shaped cobalt oxide (Co3O4) nanodisks were prepared in large scale via facile aqueous solution based hydrothermal process at 110 ◦C. The detailed structural characterizations confirmed that the synthesized products are hexagonal cobalt oxide nanodisks, possessing very well-crystalline cubic spinel structure. A coin cell of type −2032 was assembled using the synthesized Co3O4 nanodisks and its charge–discharge profile was analyzed between the voltages 0.01 and to 2.5 V vs. Li/Li+ reference electrode. The electrochemical cell composed of Li/Co3O4 delivered an initial lithium insertion capacity of 2039 mAh/g. Although the cell exhibited high irreversible capacity during the first four cycles, the columbic efficiency has been improved upon cycling

Item Type:	Article
Uncontrolled Keywords:	Co3O4 hexagonal nanodisks; Anode material; Li-ion batteries
Subjects:	Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	19 Nov 2012 07:40
Last Modified:	19 Nov 2012 07:40
URI:	http://cecri.csircentral.net/id/eprint/2896

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