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College of Engineering(공과대학)Dept. of Materials Science and Engineering(신소재공학과)MS-Journal Papers(저널논문)

Phase Stability Study of Li1-xMnPO4 (0 <= x <= 1) Cathode for Li Rechargeable Battery

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dc.contributor.authorKim, Sung-Wookko
dc.contributor.authorKim, Jongsoonko
dc.contributor.authorGwon, Hyeokjoko
dc.contributor.authorKang, Kisukko
dc.date.accessioned2009-06-10T02:46:29Z-
dc.date.available2009-06-10T02:46:29Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2009-08-
dc.identifier.citationJOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.156, no.8, pp.A635 - A638-
dc.identifier.issn0013-4651-
dc.identifier.urihttp://hdl.handle.net/10203/9305-
dc.description.abstractThe phase stability of Li1-xMnPO4 (0 &lt;= x &lt;= 1) is investigated in this study for different Li compositions and temperatures by high temperature X-ray diffraction and electron microscopy. The map of stable phases is determined at temperature ranges between room temperature and 410 degrees C. While pure LiMnPO4 phase is stable at high temperature, partial phase transformation of MnPO4 into Mn2P2O7 is observed in delithiated phases above 210 degrees C. Electron microscopy study also indicates the instability of the delithiated phase. The morphology of LiMnPO4 is severely damaged upon delithiation. The instability of the delithiated phase and the phase transformation into Mn2P2O7 may imply that safety concerns can be raised regarding the LiMnPO4 cathode, unlike its Fe counterpart.-
dc.description.sponsorshipThis work was supported by the WCU program (31-2008-000-10055-0), the General Research grant program (R01-2008-000-10913-0) through the Korea Science and Engineering Foundation (KOSEF) funded by the Ministry of Education, Science and Technology (MEST), and Energy Resource Technology Development program funded by the Ministry of Knowledge Economy (2008-E-EL11-P-08-3-010). This work was also supported by the Korea Research Foundation (KRF) grant funded by the Korean Government (MEST) (KRF-2008-331-D00243).en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherElectrochemical Soc Inc-
dc.subjectELECTRODE MATERIALS-
dc.subjectLITHIUM BATTERIES-
dc.subjectMN-
dc.subjectFE-
dc.subjectOLIVINES-
dc.subjectDIAGRAM-
dc.subjectLIMPO4-
dc.titlePhase Stability Study of Li1-xMnPO4 (0 &lt;= x &lt;= 1) Cathode for Li Rechargeable Battery-
dc.typeArticle-
dc.identifier.wosid000267798500001-
dc.identifier.scopusid2-s2.0-67650608428-
dc.type.rimsART-
dc.citation.volume156-
dc.citation.issue8-
dc.citation.beginningpageA635-
dc.citation.endingpageA638-
dc.citation.publicationnameJOURNAL OF THE ELECTROCHEMICAL SOCIETY-
dc.identifier.doi10.1149/1.3138705-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorKang, Kisuk-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorcathodes-
dc.subject.keywordAuthorelectron microscopy-
dc.subject.keywordAuthorlithium compounds-
dc.subject.keywordAuthormanganese compounds-
dc.subject.keywordAuthorsecondary cells-
dc.subject.keywordAuthorsolid-state phase transformations-
dc.subject.keywordAuthorX-ray diffraction-
dc.subject.keywordPlusELECTRODE MATERIALS-
dc.subject.keywordPlusLITHIUM BATTERIES-
dc.subject.keywordPlusMN-
dc.subject.keywordPlusFE-
dc.subject.keywordPlusOLIVINES-
dc.subject.keywordPlusDIAGRAM-
dc.subject.keywordPlusLIMPO4-
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