Kundu, Manab and Mahanty, Sourindra and Basu, Rajendra Nath (2009) Lithium antimonite: A new class of anode material for lithium-ion battery. Electrochemistry Communications, 11 (7). pp. 1389-1392. ISSN 1388-2481

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LiSbO(3) has been synthesized by chemical mixing followed by thermal treatment at 800 degrees C. Field emission scanning electron microscopy revealed bar shaped Multifaceted grains, 0.5-4 mu m long and 0.5-1 mu m wide, that cluster together as soft agglomeration. 2032 type coin cell vs Li/Li(+) shows a flat charge-discharge plateau together with low Li intercalation/de-intercalation potential (0.2/0.5 V). A high discharge capacity of 580 mA h g(-1) has been obtained in the 1st cycle with 100% Coulombic efficiency. About 96% of the Coulombic efficiency is retained up to the 12th cycle, but at the 1501 cycle, the Coulombic efficiency drops down to 88%. AC impedance spectroscopy shows an increase in electrolyte resistance (R(s)) from 4.43 Ohm after the initial cycle to 12.4 Ohm after the 15th cycle indicating a probable dissolution of Sb into the electrolyte causing the capacity fading observed. (c) 2009 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Lithium-ion battery; Anode material; Lithium antimonite; Electrochemical properties; Impedance spectroscopy
Subjects: Electronics
Divisions: Fuel Cell and Battery
Depositing User: Bidhan Chaudhuri
Date Deposited: 27 Feb 2012 10:28
Last Modified: 01 Apr 2016 06:11
URI: http://cgcri.csircentral.net/id/eprint/1030

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