Kalaiselvi, N. and Periasamy, P. and Thirunakaran, R. and Rameshbabu, B. and Premkumar, T. and Renganathan, N.G. and Raghavan, M. and Muniyandi, N. (2001) Iron doped lithium cobalt oxides as lithium intercalating cathode materials. Ionics, 7. pp. 451-455. ISSN 0947-7047

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Layered transition metal oxides of the formula LiMO 2 have good lithium insertion properties for which reason LiCoO 2 and LiNiO2 have been exploited in practical lithium rocking chair batteries. Another member of the LiMO2 series, LiFeO2, should be an attractive cathode material considering the cheapness and environment-friendliness of iron compounds. Its rock-salt structure, however, does not allow significant amounts of lithium to be reversibly intercalated in its structure. Synthesis of layered LiFeO2 and study of its lithium intercalating properties have been of limited success. Therefore, an attempt has been made here to study LiCol_~FeyO 2 solid solutions (0 < y -< 0.4) as prospective cathode materials. XRD, FTIR, Atomic absorption spectroscopy, Particle size and Surface area analysis were carried out in this regard towards the physical characterization of the entire series of LiCo~_yFeyO 2 compounds. The electrochemical discharge capacity of these materials is explained as a function of the iron content.

Item Type: Article
Subjects: Lithium batteries
Electrochemical Power Sources
Depositing User: ttbdu cecri
Date Deposited: 06 Apr 2012 15:56
Last Modified: 06 Apr 2012 15:56
URI: http://cecri.csircentral.net/id/eprint/1094

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