Thursday, 26 October 2006 - 8:30 AM
OLCC-McClain (Oakley-Lindsay Center)
36

Preparation of Porous Lithium Cobalt Oxide

Andy Dunn, Millikin University, Decatur, IL and Keenan E. Dungey, University of Illinois at Springfield, Springfield, IL.

Lithium ion batteries are prevalent in portable electronic devices. We are interested in modifying the lithium cobalt oxide cathode material for use in electrochemical experiments. Syntheses of such materials were employed using emulsion techniques followed by firing at 600 degrees C. Characterizations of all products were done using X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD and SEM analysis shows that ending products are a LiCoO2 material which is layered as well as porous with particle sizes ranging from 3 microns to 20 microns. Electrochemical results indicate the potential for good electrochemical cycling and charge/ discharge rates, but due to impurities shown in the cyclic voltammetry (CV) scans, results are inconclusive.

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