Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 선양국 | - |
dc.date.accessioned | 2018-02-22T09:20:38Z | - |
dc.date.available | 2018-02-22T09:20:38Z | - |
dc.date.issued | 2012-07 | - |
dc.identifier.citation | Electrochimica Acta, Volume 75, 30, Pages 123-130 | en_US |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0013468612006512?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/40091 | - |
dc.description.abstract | A 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.sponsorship | This 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.iso | en | en_US |
dc.publisher | ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND | en_US |
dc.subject | LITHIUM BATTERIES | en_US |
dc.subject | CATHODE MATERIAL | en_US |
dc.subject | HIGH-PERFORMANCE | en_US |
dc.subject | LIMNPO4 | en_US |
dc.title | Olivine LiCoPO4-carbon composite showing high rechargeable capacity | en_US |
dc.type | Article | en_US |
dc.relation.no | 30 | - |
dc.relation.volume | 22 | - |
dc.identifier.doi | 10.1016/j.electacta.2012.04.082 | - |
dc.relation.page | 14932-14937 | - |
dc.relation.journal | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.contributor.googleauthor | Lim, Hyung-Seok | - |
dc.contributor.googleauthor | Jung, Byoung-Young | - |
dc.contributor.googleauthor | Sun, Yang-Kook | - |
dc.contributor.googleauthor | Suh, Kyung-Do | - |
dc.relation.code | 2012205376 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | yksun | - |
dc.identifier.researcherID | B-9157-2013 | - |
dc.identifier.orcid | http://orcid.org/0000-0002-0117-0170 | - |
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