Characterization of soft-combustion-derived NASICON-type Li2Co2(MoO4)3 for lithium batteries


PRABAHARAN, S (2004) Characterization of soft-combustion-derived NASICON-type Li2Co2(MoO4)3 for lithium batteries. Materials Chemistry and Physics, 87 (2-3). pp. 318-326. ISSN 02540584

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This work describes the synthesis of a new polyanion material, Li(2)CO(2)(MoO(4))(3), belonging to the NASICON family. A low-temperature soft-combustion method using glycine as a soft-combustion fuel was adopted to obtain single-phase powders of the new material at a temperature as low as 300degreesC. Li(2)Co(2)(MoO(4))(3,) was found to crystallize in an orthorhombic structure (space group Pmmm) with lattice parameters a = 17.584(7) A, b = 10.464(4) A and c = 5.102(9) A. The electronic state of each element present in the new material was confirmed by X-ray photoelectron spectroscopic analysis. The powders were analyzed using inductively coupled plasma emission spectroscopy. The microstructural analysis revealed that the particles (5-10 mum) have a rather columnar shape. The electrochemistry redox behavior of. the new material was studied, for the first time, and the material as positive electrode was found to exhibit topotactic Li(+) extraction/insertion in lithium-containing test cells. (C) 2004 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 22 Aug 2011 02:02
Last Modified: 22 Aug 2011 02:02


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