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The Electrochemical Society, ECS Transactions, 12(58), p. 21-29, 2014

DOI: 10.1149/05812.0021ecst

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Palladium Nanoparticles as Catalysts for Li-O2 Battery Cathodes

Journal article published in 2014 by Hugh Geaney, G. Collins, Colm Glynn, J. D. Holmes, Colm O'Dwyer ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

This report investigates the influence of electrolyte selection and the addition of Pd nanoparticle catalysts on the morphology of discharge products for Li-O2 battery cathodes. Super P carbon cathodes (on stainless steel current collectors) were subjected to single discharges at various applied currents (50 µA, 100 µA, 250 µA) using either a sulfolane/LiTFSI or TEGDME/LITFSI electrolyte. The morphologies of the discharge product were noted to be different for each electrolyte while there was also a clear variation with respect to applied current. Finally, the impact of adding 25% (by weight) Pd nanoparticle catalysts to the cathodes was investigated. The results obtained show clearly that the nature of discharge products for Li-O2 battery cathodes are strongly dependent on applied current, electrolyte choice and the addition of a catalyst material.