DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyungsub | ko |
dc.contributor.author | Lee, Seongsu | ko |
dc.contributor.author | Park, Young-Uk | ko |
dc.contributor.author | Kim, Haegyeom | ko |
dc.contributor.author | Kim, Jongsoon | ko |
dc.contributor.author | Jeon, Seokwoo | ko |
dc.contributor.author | Kang, Kisuk | ko |
dc.date.accessioned | 2013-03-09T09:00:04Z | - |
dc.date.available | 2013-03-09T09:00:04Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011-09 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v.23, no.17, pp.3930 - 3937 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/10203/95937 | - |
dc.description.abstract | Structural characterization of Li2-xMP2O7 (M = Fe, Co) was carried out using neutron diffraction (ND) and X-ray diffraction (XRD) analyses to elucidate structural information and structural changes during an electrochemical reaction. The crystal system and space group were determined to be monoclinic P2(l)/c for both materials with a = 11.0192 (4) angstrom, b = 9.7488 (3) angstrom, c = 9.8057 (4) angstrom, and beta = 101.569 (3)degrees for Li2-xFeP2O7 and a = 10.9574 (3), b = 9.6921 (3), c = 9.7611 (3), and beta = 101.776 (2)degrees for Li2-xCoP2O7. XRD analysis revealed partial occupancy of iron and cobalt in the structures of Li2-xFeP2O7 and Li2-xCoP2O7, respectively. Also, ND identified lithium positions and partial occupancies in five different Li sites of Li2-xMP2O7 (M = Fe, Co). Further ex situ XRD showed that the charging/discharging of Li2-xFeP2O7 occurred primarily via a two-phase reaction with a slight solid solution behavior. We also demonstrated for the first time that Li2-xCoP2O7 electrodes are electrochemically active, with a redox potential of similar to 5 V (versus Li). | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | CATHODE MATERIAL | - |
dc.subject | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject | MULTICOMPONENT OLIVINE | - |
dc.subject | ROOM-TEMPERATURE | - |
dc.subject | SOLID-SOLUTION | - |
dc.subject | LIXFEPO4 | - |
dc.subject | LI2FESIO4 | - |
dc.subject | LIFEPO4 | - |
dc.subject | OXIDES | - |
dc.title | Neutron and X-ray Diffraction Study of Pyrophosphate-Based Li2-xMP2O7 (M = Fe, Co) for Lithium Rechargeable Battery Electrodes | - |
dc.type | Article | - |
dc.identifier.wosid | 000294647700018 | - |
dc.identifier.scopusid | 2-s2.0-80052501538 | - |
dc.type.rims | ART | - |
dc.citation.volume | 23 | - |
dc.citation.issue | 17 | - |
dc.citation.beginningpage | 3930 | - |
dc.citation.endingpage | 3937 | - |
dc.citation.publicationname | CHEMISTRY OF MATERIALS | - |
dc.contributor.localauthor | Jeon, Seokwoo | - |
dc.contributor.nonIdAuthor | Kim, Hyungsub | - |
dc.contributor.nonIdAuthor | Lee, Seongsu | - |
dc.contributor.nonIdAuthor | Park, Young-Uk | - |
dc.contributor.nonIdAuthor | Kim, Haegyeom | - |
dc.contributor.nonIdAuthor | Kim, Jongsoon | - |
dc.contributor.nonIdAuthor | Kang, Kisuk | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | structural characterization | - |
dc.subject.keywordAuthor | neutron diffraction | - |
dc.subject.keywordAuthor | X-ray diffraction | - |
dc.subject.keywordAuthor | Li2-xMP2O7 (M = Fe, Co) | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | MULTICOMPONENT OLIVINE | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE | - |
dc.subject.keywordPlus | SOLID-SOLUTION | - |
dc.subject.keywordPlus | LIXFEPO4 | - |
dc.subject.keywordPlus | LI2FESIO4 | - |
dc.subject.keywordPlus | LIFEPO4 | - |
dc.subject.keywordPlus | OXIDES | - |
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