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A nanostructured cathode architecture for low charge overpotential in lithium-oxygen batteries

Research Authors
Jun Lu, Yu Lei, Kah Chun Lau, Xiangyi Luo, Peng Du, Jianguo Wen, Rajeev S Assary, Ujjal Das, Dean J Miller, Jeffrey W Elam, Hassan M Albishri, D Abd El-Hady, Yang-Kook Sun, Larry A Curtiss, Khalil Amine
Research Abstract

The lithium-oxygen battery, of much interest because of its very high-energy density,
presents many challenges, one of which is a high-charge overpotential that results in large
inefficiencies. Here we report a cathode architecture based on nanoscale components that
results in a dramatic reduction in charge overpotential to~ 0.2 V. The cathode utilizes atomic
layer deposition of palladium nanoparticles on a carbon surface with an alumina coating for
passivation of carbon defect sites. The low charge potential is enabled by the combination .

Research Department
Research Journal
Nature communications
Research Publisher
Nature Publishing Group
Research Rank
1
Research Vol
4
Research Year
2013