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Neutron and X-ray Diffraction Study of Pyrophosphate-Based Li2-xMP2O7 (M = Fe, Co) for Lithium Rechargeable Battery Electrodes
DC Field | Value | Language |
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dc.contributor.author | Kim, Hyungsub | - |
dc.contributor.author | Lee, Seongsu | - |
dc.contributor.author | Park, Young-Uk | - |
dc.contributor.author | Kim, Haegyeom | - |
dc.contributor.author | Kim, Jongsoon | - |
dc.contributor.author | Jeon, Seokwoo | - |
dc.contributor.author | Kang, Kisuk | - |
dc.date.accessioned | 2020-04-25T08:21:25Z | - |
dc.date.available | 2020-04-25T08:21:25Z | - |
dc.date.created | 2020-03-19 | - |
dc.date.created | 2020-03-19 | - |
dc.date.issued | 2011-09 | - |
dc.identifier.citation | Chemistry of Materials, Vol.23 No.17, pp.3930-3937 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.other | 92916 | - |
dc.identifier.uri | https://hdl.handle.net/10371/165162 | - |
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 | 영어 | - |
dc.publisher | American Chemical Society | - |
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.contributor.AlternativeAuthor | 강기석 | - |
dc.identifier.doi | 10.1021/cm201305z | - |
dc.citation.journaltitle | Chemistry of Materials | - |
dc.identifier.wosid | 000294647700018 | - |
dc.identifier.scopusid | 2-s2.0-80052501538 | - |
dc.citation.endpage | 3937 | - |
dc.citation.number | 17 | - |
dc.citation.startpage | 3930 | - |
dc.citation.volume | 23 | - |
dc.identifier.sci | 000294647700018 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Kang, Kisuk | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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 | - |
dc.subject.keywordAuthor | structural characterization | - |
dc.subject.keywordAuthor | neutron diffraction | - |
dc.subject.keywordAuthor | X-ray diffraction | - |
dc.subject.keywordAuthor | Li2-xMP2O7 (M = Fe, Co) | - |
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