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dc.contributor.author선양국-
dc.date.accessioned2018-03-12T01:13:58Z-
dc.date.available2018-03-12T01:13:58Z-
dc.date.issued2013-08-
dc.identifier.citationNature Communications, 29 August 2013, 4, P.2383en_US
dc.identifier.issn2041-1723-
dc.identifier.urihttps://www.nature.com/articles/ncomms3383-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/45059-
dc.description.abstractThe 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 of palladium nanoparticles attached to the carbon cathode surface, a nanocrystalline form of lithium peroxide with grain boundaries, and the alumina coating preventing electrolyte decomposition on carbon. High-resolution transmission electron microscopy provides evidence for the nanocrystalline form of lithium peroxide. The new cathode material architecture provides the basis for future development of lithium-oxygen cathode materials that can be used to improve the efficiency and to extend cycle life.en_US
dc.description.sponsorshipThis work was supported by the U.S. Department of Energy under Contract DE-AC02-06CH11357 with the main support provided by the Vehicle Technologies Office, Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE). J.Lu was supported by the Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Postdoctoral Research Award under the EERE Vehicles Technology Program administered by the Oak Ridge Institute for Science and Education (ORISE) for the DOE. This work was also partially supported from the Tailored Interfaces for Energy Storage, an Energy Frontier Research Center, Office of Basic Energy Sciences Research. This work was also supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government, Ministry of Knowledge and Economy (No. 20114010203150) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST; No. 2009-0092780). We acknowledge grants of computer time through INCITE and ALCC awards for BlueGene/P computer at Argonne National Laboratory and allocations on the CNM Carbon Cluster at Argonne National Laboratory, the ALCF Fusion Cluster at Argonne National Laboratory, and the EMSL Chinook Cluster at Pacific Northwest National Laboratory. Use of the Advanced Photon Source and the Electron Microscopy Center at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under contract No. DE-AC02-06CH11357.en_US
dc.language.isoenen_US
dc.publisherNature Publishing Groupen_US
dc.subjectATOMIC LAYER DEPOSITIONen_US
dc.subjectRECHARGEABLE LI-O-2 BATTERIESen_US
dc.subjectAIR BATTERIESen_US
dc.subjectELECTROLYTESen_US
dc.subjectNANOPARTICLESen_US
dc.subjectCHALLENGESen_US
dc.subjectNANOPORESen_US
dc.subjectCATALYSTen_US
dc.titleA nanostructured cathode architecture for low charge overpotential in lithium-oxygen batteriesen_US
dc.typeArticleen_US
dc.relation.volume4-
dc.identifier.doi10.1038/ncomms3383-
dc.relation.page1-9-
dc.relation.journalNATURE COMMUNICATIONS-
dc.contributor.googleauthorLu, J.-
dc.contributor.googleauthorLuo, X-
dc.contributor.googleauthorDu, P-
dc.contributor.googleauthorAmine, K.-
dc.contributor.googleauthorLei, Y-
dc.contributor.googleauthorElam, J.W-
dc.contributor.googleauthorLau, K.C-
dc.contributor.googleauthorAssary, R.S.-
dc.contributor.googleauthorDas, U-
dc.contributor.googleauthorSun, Y.-K-
dc.relation.code2013011396-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidyksun-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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