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dc.contributor.author선양국-
dc.date.accessioned2018-02-22T09:20:38Z-
dc.date.available2018-02-22T09:20:38Z-
dc.date.issued2012-07-
dc.identifier.citationElectrochimica Acta, Volume 75, 30, Pages 123-130en_US
dc.identifier.issn0013-4686-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0013468612006512?via%3Dihub-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/40091-
dc.description.abstractA LiCoPO4 positive electrode material with an extremely high discharge capacity, 145 mA h (g-phosphate)(-1), is reported. Seeking high capacity, we examined three kinds of precursors, Co3O4, Co-3(PO4)(2)center dot 2H(2)O, and NH4CoPO4 center dot H2O. In combination with a thermal gravimetric study, we found that simple the dehydration of the first two precursors is related to the formation of LiCoPO4-acetylene black carbon composites (hereafter referred as C-LiCoPO4). Meanwhile, the formation of the C-LiCoPO4 composite is somewhat different. That is, generation of NH3 gas and dehydration of the NH4CoPO4 center dot H2O precursor occurs spontaneously, and the NH3, which decomposes to N-2 and H-2 gases, provides a more reductive environment during calcination, leaving a small quantity of metallic Co nanoparticles (<10 nm). Distribution of the added acetylene black carbon network is important for proper electron transfer, resulting in good rate capability and capacity retention at 25 degrees C and 55 degrees C, which has never been reported.en_US
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0004476).This work was supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20114010203150).en_US
dc.language.isoenen_US
dc.publisherROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDen_US
dc.subjectLITHIUM BATTERIESen_US
dc.subjectCATHODE MATERIALen_US
dc.subjectHIGH-PERFORMANCEen_US
dc.subjectLIMNPO4en_US
dc.titleOlivine LiCoPO4-carbon composite showing high rechargeable capacityen_US
dc.typeArticleen_US
dc.relation.no30-
dc.relation.volume22-
dc.identifier.doi10.1016/j.electacta.2012.04.082-
dc.relation.page14932-14937-
dc.relation.journalJOURNAL OF MATERIALS CHEMISTRY-
dc.contributor.googleauthorLim, Hyung-Seok-
dc.contributor.googleauthorJung, Byoung-Young-
dc.contributor.googleauthorSun, Yang-Kook-
dc.contributor.googleauthorSuh, Kyung-Do-
dc.relation.code2012205376-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidyksun-
dc.identifier.researcherIDB-9157-2013-
dc.identifier.orcidhttp://orcid.org/0000-0002-0117-0170-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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