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dc.contributor.author조국영-
dc.date.accessioned2019-12-06T04:41:10Z-
dc.date.available2019-12-06T04:41:10Z-
dc.date.issued2019-08-
dc.identifier.citationAPPLIED SURFACE SCIENCE, v. 484, Page. 701-709en_US
dc.identifier.issn0169-4332-
dc.identifier.issn1873-5584-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0169433219311158-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/117865-
dc.description.abstractHigh-voltage operation in LiNi0.5Mn0.3Co0.2O2 (NMC532) is an attractive strategy to meet the demands for practical application of high energy density lithium-ion batteries (LIBs). However, a serious problem at high cut-off voltage is the capacity fading during charge-discharge cycling, caused by electrolyte decomposition and dissolution of cathode materials. Herein, we fabricated an ultrathin ZrO2 coating on the surface of the as-prepared NMC532 electrode via atomic layer deposition (ALD) to improve the electrochemical performances of the high-voltage NMC532/graphite system. The capacity retention and rate capability of NMC 532 electrode at high voltage (4.6 V) operation were improved by the ZrO2 coating. Cyclic voltammetry, X-ray photoelectron spectroscopy, and X-ray diffraction analyses of ZrO2-coated NMC532 electrode revealed that the enhanced electrochemical performance was due to the reduced side reaction, structural disordering, and polarization at the cathode surface. Thus, ZrO2 coating of the as-prepared electrode by ALD is a promising technique to maintain the high electrochemical performance of LIBs during high-voltage operations.en_US
dc.description.sponsorshipThis research was supported by the National Research Foundation of Korea (NRF) granted Mid-Career Research Program (No. 2018R1A2B6003422), and the National Research Council of Science and Technology (NST) grant by the Korea government Ministry of Science and ICT (MSIT) (No. CAP-16-04-KRISS).en_US
dc.language.isoen_USen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectLiNi0.5Mn0.3Co0.2O2en_US
dc.subjectPrepared electrodeen_US
dc.subjectZrO2en_US
dc.subjectSurface coatingen_US
dc.subjectAtomic layer depositionen_US
dc.subjectHigh-voltage operationen_US
dc.titleUltrathin ZrO2 on LiNi0.5Mn0.3Co0.2O2 electrode surface via atomic layer deposition for high-voltage operation in lithium-ion batteriesen_US
dc.typeArticleen_US
dc.relation.volume484-
dc.identifier.doi10.1016/j.apsusc.2019.04.123-
dc.relation.page701-709-
dc.relation.journalAPPLIED SURFACE SCIENCE-
dc.contributor.googleauthorAhn, Jinhyeok-
dc.contributor.googleauthorJan, Eun Kwang-
dc.contributor.googleauthorYoon, Sukeun-
dc.contributor.googleauthorLee, Sang-Ju-
dc.contributor.googleauthorSun, Shi-Joon-
dc.contributor.googleauthorKim, Dae-Hwan-
dc.contributor.googleauthorCho, Kuk Young-
dc.relation.code2019002990-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF ENGINEERING SCIENCES[E]-
dc.sector.departmentDEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING-
dc.identifier.pidkycho-
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COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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