This talk will present our recent results in using atomic layer deposition (ALD) to fabricate nanostructured cathode materials for lithium-oxygen batteries. Combining metal oxides and metal ALD, we first passivate the porous carbon substrate using metal oxide, followed by subsequent deposition of monodispersed Pd nanoparticles as the electrocatalysts. We characterize the atomic and electronic structure of the electrocatalyst using high resolution transmission electron microscopy and synchrotron x-ray absorption fine structure spectroscopy. The lithium-oxygen battery using the ALD electrocatalyst coated cathode materials show enhanced cyclability and low charge overpotential. The relationship between electrocatalyst structure and battery performance will be discussed.

Nanostructured electrocatalysts synthesized using atomic layer deposition for lithium-oxygen batteries

250th National Meeting (2015)

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