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Anti-Site Reordering in LiFePO4: Defect Annihilation on Charge Carrier Injection

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dc.contributor.authorPark, KY-
dc.contributor.authorInchul Park-
dc.contributor.authorKim, H-
dc.contributor.authorLim, HD-
dc.contributor.authorHong, J-
dc.contributor.authorKim, J-
dc.contributor.authorKisuk Kang-
dc.date.available2015-04-20T05:28:06Z-
dc.date.created2014-11-12-
dc.date.issued2014-09-
dc.identifier.issn0897-4756-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/905-
dc.description.abstractDefects critically affect the properties of materials. Thus, controlling the defect concentration often plays a pivotal role in determining performance. In lithium rechargeable batteries, the operating mechanism is based on ion transport, so large numbers of defects in the electrode crystal can significantly impede Li ion diffusion, leading to decreased electrochemical properties. Here, we introduce a new way to heal defects in crystals by a room-temperature electrochemical annealing process. We show that defects in olivine LiFePO4, an important cathode material, are significantly reduced by the electrochemical recombination of Li/Fe anti-sites. The healed LiFePO4 recovers its high-power capabilities. The types of defects in LiFePO4 and recombination mechanisms are discussed with the aid of first-principles calculations.-
dc.description.uri1-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.titleAnti-Site Reordering in LiFePO4: Defect Annihilation on Charge Carrier Injection-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000342184900022-
dc.identifier.scopusid2-s2.0-84990028158-
dc.identifier.rimsid16363ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorInchul Park-
dc.contributor.affiliatedAuthorKisuk Kang-
dc.identifier.doi10.1021/cm502432q-
dc.identifier.bibliographicCitationCHEMISTRY OF MATERIALS, v.26, no.18, pp.5345 - 5351-
dc.citation.titleCHEMISTRY OF MATERIALS-
dc.citation.volume26-
dc.citation.number18-
dc.citation.startPage5345-
dc.citation.endPage5351-
dc.date.scptcdate2018-10-01-
dc.description.wostc19-
dc.description.scptc20-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusRECHARGEABLE LITHIUM BATTERIES-
dc.subject.keywordPlusPHOSPHO-OLIVINES-
dc.subject.keywordPlusCATHODE MATERIAL-
dc.subject.keywordPlusIRON PHOSPHATES-
dc.subject.keywordPlusSOLID-SOLUTION-
dc.subject.keywordPlusPOINT-DEFECTS-
dc.subject.keywordPlusDIFFUSION-
dc.subject.keywordPlusCRYSTALS-
dc.subject.keywordPlusBEHAVIOR-
dc.subject.keywordPlusCONDUCTIVITY-
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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