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dc.contributor.author윤종승-
dc.date.accessioned2019-12-03T03:39:57Z-
dc.date.available2019-12-03T03:39:57Z-
dc.date.issued2017-12-
dc.identifier.citationJOURNAL OF MATERIALS CHEMISTRY A, v. 5, no. 45, page. 23671-23680en_US
dc.identifier.issn2050-7488-
dc.identifier.issn2050-7496-
dc.identifier.urihttps://pubs.rsc.org/en/content/articlelanding/2017/TA/C7TA08443A#!divAbstract-
dc.identifier.urihttp://repository.hanyang.ac.kr/handle/20.500.11754/116732-
dc.description.abstractA surface-modified O3-type Na[Ni0.6Co0.2Mn0.2]O-2 cathode was synthesized by Al2O3 nanoparticle coating using a simple dry ball-milling route. The nanoscale Al2O3 particles (similar to 15 nm in diameter) densely covering the spherical O3-type Na[Ni0.6Co0.2Mn0.2]O-2 cathode particles effectively minimized parasitic reactions with the electrolyte solution while assisting Na+ migration. The proposed Al2O3 coated Na [Ni0.6Co0.2Mn0.2]O-2 cathode exhibited a high specific capacity of 151 mA h g(-1), as well as improved cycling stability and rate capability in a half cell. Furthermore, the Al2O3 coated cathode was scaled up to a pouch-type full cell using a hard carbon anode that exhibited a superior rate capability and capacity retention of 75% after 300 cycles with a high energy density of 130 W h kg(-1). In addition, the postmortem surface characterization of the cathodes from the long-term cycled full cells helped in identifying the exact mechanism of the surface reaction with the electrolyte and the reason for its subsequent degradation and showed that the nano-scale Al2O3 coating layer was effective at resolving the degradation pathways of the cathode surface from hydrogen fluoride (HF) attack.en_US
dc.description.sponsorshipThis work was supported by the Global Frontier R&D Programme (No. 2013M3A6B1078875) on Center for Hybrid Interface Materials (HIM) funded by the Ministry of Science, ICT & Future Planning and supported by a Human Resources Development programme (No. 20154010200840) of a Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Trade, Industry and Energy of the Korean government.en_US
dc.language.isoen_USen_US
dc.publisherROYAL SOC CHEMISTRYen_US
dc.subjectELECTROCHEMICAL PERFORMANCEen_US
dc.subjectSTORAGE MATERIALen_US
dc.subjectANODE MATERIALen_US
dc.subjectHARD-CARBONen_US
dc.subjectELECTRODEen_US
dc.subjectLICOO2en_US
dc.subjectTEMPERATUREen_US
dc.subjectSTABILITYen_US
dc.subjectINSERTIONen_US
dc.subjectCELLSen_US
dc.titleResolving the degradation pathways of the O3-type layered oxide cathode surface through the nano-scale aluminum oxide coating for high-energy density sodium-ion batteriesen_US
dc.typeArticleen_US
dc.relation.no45-
dc.relation.volume5-
dc.identifier.doi10.1039/c7ta08443a-
dc.relation.page23671-23680-
dc.relation.journalJOURNAL OF MATERIALS CHEMISTRY A-
dc.contributor.googleauthorHwang, Jang-Yeon-
dc.contributor.googleauthorMyung, Seung-Taek-
dc.contributor.googleauthorChoi, Ji Ung-
dc.contributor.googleauthorYoon, Chong Seung-
dc.contributor.googleauthorYashiro, Hitoshi-
dc.contributor.googleauthorSun, Yang-Kook-
dc.relation.code2017000065-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MATERIALS SCIENCE AND ENGINEERING-
dc.identifier.pidcsyoon-
dc.identifier.orcidhttp://orcid.org/0000-0001-6164-3331-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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