DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gwon, Hyeokjo | ko |
dc.contributor.author | Seo, Dong-Hwa | ko |
dc.contributor.author | Kim, Sung-Wook | ko |
dc.contributor.author | Kim, Jongsoon | ko |
dc.contributor.author | Kang, Ki-Suk | ko |
dc.date.accessioned | 2010-11-29 | - |
dc.date.available | 2010-11-29 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009-10 | - |
dc.identifier.citation | ADVANCED FUNCTIONAL MATERIALS, v.19, no.20, pp.3285 - 3292 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | http://hdl.handle.net/10203/20439 | - |
dc.description.abstract | The electrochemical properties and phase stability of the multi-component olivine compound LiMn(1/3)Fe(1/3)Co(1/3)PO(4) are studied experimentally and with first-principles calculation. The formation of a solid solution between LiMnPO(4), LiFePO(4), and LiCoPO(4) at this composition is confirmed by XRD patterns and the calculated energy. The experimental and first-principle results indicate that there are three distinct regions in the electrochemical profile at quasi-open-circuit circuit potentials of similar to 3.5V, similar to 4.1V, and similar to 4.7V, which are attributed 50 Fe(3+)/Fe(2+,) , Mn(3+)/Mn(2+), and Co(3+)/Co(2+) redox couples, respectively. However, exceptionally large polarization is observed only for the region near 4.1V of Mn(3+)/Mn(2+) redox couples, implying; an intrinsic charge transfer problem. An ex situ XRD study reveals that the reversible one-phase reaction of Li extraction/insertion mechanism prevails, unexpectedly, for all lithium compositions of Li(x)Mn(1/3)Fe(1/3)Co(1/3)PO(4) (0 <= x <= 1) at room temperature. This is the first demonstration that the well-ordered non-nanocrystalline (less than 1% Li-M disorder and a few hundred nanometer size particle) olivine electrode can be operated solely in a one-phase mode. | - |
dc.description.sponsorship | This research was supported by General Research Grant program through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology (No. R01-2008-000-10913-0). This research was also supported by 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 Science & Engineering Foundation (KOSEF) grant (WCU program, 31-2008-000-10055-0) funded by the Ministry of Education and Science & Technology(MEST). Supporting Information is available online at Wiley InterScience or from the authors. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Combined First-Principle Calculations and Experimental Study on Multi-Component Olivine Cathode for Lithium Rechargeable Batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000271543100013 | - |
dc.identifier.scopusid | 2-s2.0-70350445368 | - |
dc.type.rims | ART | - |
dc.citation.volume | 19 | - |
dc.citation.issue | 20 | - |
dc.citation.beginningpage | 3285 | - |
dc.citation.endingpage | 3292 | - |
dc.citation.publicationname | ADVANCED FUNCTIONAL MATERIALS | - |
dc.identifier.doi | 10.1002/adfm.200900414 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Seo, Dong-Hwa | - |
dc.contributor.localauthor | Kang, Ki-Suk | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRONIC-STRUCTURE | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE | - |
dc.subject.keywordPlus | PHASE-STABILITY | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | LIFEPO4 | - |
dc.subject.keywordPlus | LICOPO4 | - |
dc.subject.keywordPlus | LI-X(MNYFE1-Y)PO4 | - |
dc.subject.keywordPlus | INTERCALATION | - |
dc.subject.keywordPlus | LIMNPO4 | - |
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