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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7494

Title: Study of camphor-pyrolysed carbon electrode in a lithium rechargeable cell
Authors: KUMAR, M
KICHAMBARE, PD
SHARON, M
AVERY, NR
BLACK, KJ
Keywords: systems
Issue Date: 2000
Publisher: ELSEVIER SCIENCE SA
Citation: MATERIALS CHEMISTRY AND PHYSICS, 66(1), 83-89
Abstract: Pure camphor pyrolysed at 900 degrees C fur 2 h in different gaseous environments yields graphite-like carbons which were used as a negative electrode in rechargeable carbon/Li cells. These cells were continuously cycled at a constant current of 300 mu A cm(-2) for 10-20 days and reversible Li+ intercalation capacities of 0.45-0.61 were observed. Kinetic analysis of such a cell was studied by complex impedance spectroscopy and current interruption. After initial irreversible passivation during the first discharge, fully reversible intercalation capacity was observed for subsequent charge-discharge cycles. This property makes the camphor-pyrolysed carbon (CPC) a promising electrode material for further investigation for making a rechargeable lithium battery. A CPC/Li cell model is proposed. The structural properties of the camphor-pyrolysed electrode material is discussed on the basis of SEM, TEM, XRD and FTIR analyses. (C) 2000 Elsevier Science S.A. .
URI: http://dx.doi.org/10.1016/S0254-0584(00)00276-5
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7494
http://hdl.handle.net/10054/7494
ISSN: 0254-0584
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