Oxalic dihydrazide assisted novel combustion synthesized Li3V2(PO4)3 and LiVP2O7 compounds for rechargeable lithium batteries

Kalidas, N., Nallathamby, K. and Minakshi, M.ORCID: 0000-0001-6558-8317 (2013) Oxalic dihydrazide assisted novel combustion synthesized Li3V2(PO4)3 and LiVP2O7 compounds for rechargeable lithium batteries. ECS transactions, 50 (24). pp. 79-88.

Abstract

A novel oxalic dihydrazide (ODH) has been identified as a fuel for solution combustion synthesis to prepare LixMy(PO 4)z compounds as a cathode material for lithium battery applications. These compounds have been synthesized at 850°C using a mixture of Ar:H2 (90:10) atmosphere, wherein oxalic dihydrazide acts both as a combustible fuel and a carbon source. This resulted in a higher carbon content weighing ca. 12 and 8% for poly (Li3V2(PO 4)3/C) and pyrophosphate (LiVP2O7/C) composites as opposed to the insitu added super P carbon was only 5 wt.%. The electrochemical behavior of these cathodes showed reversible intercalation and deintercalation of lithium ions while exhibiting specific capacities of 168 and 100 mAh/g with good capacity retention. The role of ODH assisted combustion synthesis (ODHAC) on the physical and electrochemical behavior of the title compounds has been demonstrated.

Item Type:	Journal Article
Publisher:	The Electrochemical Society
Copyright:	2013 The Electrochemical Society
URI:	http://researchrepository.murdoch.edu.au/id/eprint/19185

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