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Reversible Lithium Storage at Highly Populated Vacant Sites in an Amorphous Vanadium Pentoxide Electrode

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dc.contributor.authorChae, OB-
dc.contributor.authorKim, J-
dc.contributor.authorIn Chul Park-
dc.contributor.authorJeong, H-
dc.contributor.authorKu, JH-
dc.contributor.authorRyu, JH-
dc.contributor.authorKisuk Kang-
dc.contributor.authorOh, SM-
dc.date.available2015-04-20T05:23:20Z-
dc.date.created2015-01-20-
dc.date.issued2014-10-
dc.identifier.issn0897-4756-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/882-
dc.description.abstractA vanadium pentoxide electrode is prepared in the amorphous form (a-V2O5), and its electrode performances are compared to those for its crystalline counterpart (c-V2O5). The a- V2O5 electrode outperforms c-V2O5 in several ways. First, it is free from irreversible phase transitions and Li trapping, which evolve in c- V2O5, probably due to the lack of interactions between the inserted Li+ ions/electrons and V2O5 matrix. Second, the absence of Li trapping allows a reversible capacity amounting to >600 mA h g−1, which is larger than that given by c-V2O5. Third, it shows an excellent rate property. The notably high reversible capacity and rate capability seem to be due to Li storage at vacant sites that are ill-defined but numerous in a-V2O5, which Li+ ions can easily access. However, irreversible capacity of a-V2O5 is appreciable in the first cycle due to a parasitic Li reaction with surface hydroxyl groups. Treatment with nbutyllithium can suppress the irreversible capacity by removing the surface hydroxyl groups.-
dc.description.uri1-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.titleReversible Lithium Storage at Highly Populated Vacant Sites in an Amorphous Vanadium Pentoxide Electrode-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000343950300008-
dc.identifier.scopusid2-s2.0-84908270499-
dc.identifier.rimsid16828ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorIn Chul Park-
dc.contributor.affiliatedAuthorKisuk Kang-
dc.identifier.doi10.1021/cm502268u-
dc.identifier.bibliographicCitationCHEMISTRY OF MATERIALS, v.26, no.20, pp.5874 - 5881-
dc.citation.titleCHEMISTRY OF MATERIALS-
dc.citation.volume26-
dc.citation.number20-
dc.citation.startPage5874-
dc.citation.endPage5881-
dc.date.scptcdate2018-10-01-
dc.description.wostc48-
dc.description.scptc50-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusELECTROCHEMICAL CHARACTERIZATION-
dc.subject.keywordPlusION BATTERIES-
dc.subject.keywordPlusV2O5-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusINTERCALATION-
dc.subject.keywordPlusINSERTION-
dc.subject.keywordPlusAEROGELS-
dc.subject.keywordPlusOXIDES-
dc.subject.keywordPlusMOO2-
dc.subject.keywordPlusXAS-
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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