Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 조국영 | - |
dc.date.accessioned | 2019-12-06T04:41:10Z | - |
dc.date.available | 2019-12-06T04:41:10Z | - |
dc.date.issued | 2019-08 | - |
dc.identifier.citation | APPLIED SURFACE SCIENCE, v. 484, Page. 701-709 | en_US |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0169433219311158 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/117865 | - |
dc.description.abstract | High-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.sponsorship | This 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.iso | en_US | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | LiNi0.5Mn0.3Co0.2O2 | en_US |
dc.subject | Prepared electrode | en_US |
dc.subject | ZrO2 | en_US |
dc.subject | Surface coating | en_US |
dc.subject | Atomic layer deposition | en_US |
dc.subject | High-voltage operation | en_US |
dc.title | Ultrathin ZrO2 on LiNi0.5Mn0.3Co0.2O2 electrode surface via atomic layer deposition for high-voltage operation in lithium-ion batteries | en_US |
dc.type | Article | en_US |
dc.relation.volume | 484 | - |
dc.identifier.doi | 10.1016/j.apsusc.2019.04.123 | - |
dc.relation.page | 701-709 | - |
dc.relation.journal | APPLIED SURFACE SCIENCE | - |
dc.contributor.googleauthor | Ahn, Jinhyeok | - |
dc.contributor.googleauthor | Jan, Eun Kwang | - |
dc.contributor.googleauthor | Yoon, Sukeun | - |
dc.contributor.googleauthor | Lee, Sang-Ju | - |
dc.contributor.googleauthor | Sun, Shi-Joon | - |
dc.contributor.googleauthor | Kim, Dae-Hwan | - |
dc.contributor.googleauthor | Cho, Kuk Young | - |
dc.relation.code | 2019002990 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | kycho | - |
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