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dc.contributor.author선양국-
dc.date.accessioned2021-11-10T07:47:36Z-
dc.date.available2021-11-10T07:47:36Z-
dc.date.issued2020-05-
dc.identifier.citationJOURNAL OF MATERIALS CHEMISTRY A, v. 8, no. 24, page. 12055-12068en_US
dc.identifier.issn2050-7488-
dc.identifier.issn2050-7496-
dc.identifier.urihttps://pubs.rsc.org/en/content/articlelanding/2020/TA/D0TA03767B-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/166215-
dc.description.abstractSodium-ion batteries (SIBs) have attracted great attention for day-to-day applications as a replacement for lithium-ion batteries (LIBs) that deliver high voltage and high energy because of the low battery-preparation cost and vast availability of sodium resources. The recent exploration of Na(+)superionic conductor or NASICON-type Na4VMn(PO4)(3)(NVMP) cathodes for SIBs is a pioneering approach because of the high working voltage, high theoretical capacity, and stable three-dimensional framework of the NVMP cathodes. However, the inherently low electronic conductivity results in mediocre rate outputs and poor exploitation of the active material. Herein, we report, for the first time, the preparation of a cotton candy-like carbon-coated Cu-doped NVMP or Na4VMn0.9Cu0.1(PO4)(3)(NVMCP/C/CC) cathode by a facile and ultrafast pyro-synthetic method. The robust structure of the NVMCP/C/CC and the highly reversible two-phase reaction upon Na-ion insertion/extraction were systematically revealed by thein situsynchrotron XRD and GITT studies, while the DFT calculations established the crucial reasons behind the enhanced electronic conduction of the NVMCP/C/CC. The superior electrochemical properties of the NVMCP/C/CC cathode at low (79 mA h g(-1)after 450 cycles at 1.5C) and high current rates (68 mA h g(-1)after 3000 cycles at 30C) demonstrate that the combination of a three-dimensional nanoarchitecture, uniform carbon-coating, and Cu-doping is favorable for improving the electrochemical properties of the NVMP cathodes.en_US
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2017R1A2A1A17069397). This work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2018R1A5A 1025224).en_US
dc.language.isoenen_US
dc.publisherROYAL SOC CHEMISTRYen_US
dc.subjectHIGH-VOLTAGEen_US
dc.subjectSODIUMen_US
dc.subjectLITHIUMen_US
dc.subjectELECTRODEen_US
dc.subjectNA3V2(PO4)(3)en_US
dc.subjectNANOCOMPOSITEen_US
dc.subjectCONSTRUCTIONen_US
dc.subjectEXPLORATIONen_US
dc.subjectMIGRATIONen_US
dc.subjectCOMPOSITEen_US
dc.titleMultidimensional Na4VMn0.9Cu0.1(PO4)(3)/C cotton-candy cathode materials for high energy Na-ion batteriesen_US
dc.typeArticleen_US
dc.relation.no24-
dc.relation.volume8-
dc.identifier.doi10.1039/d0ta03767b-
dc.relation.page12055-12068-
dc.relation.journalJOURNAL OF MATERIALS CHEMISTRY A-
dc.contributor.googleauthorSoundharrajan, Vaiyapuri-
dc.contributor.googleauthorAlfaruqi, Muhammad H.-
dc.contributor.googleauthorLee, Seulgi-
dc.contributor.googleauthorSambandam, Balaji-
dc.contributor.googleauthorKim, Sungjin-
dc.contributor.googleauthorKim, Seokhun-
dc.contributor.googleauthorMathew, Vinod-
dc.contributor.googleauthorPham, Duong Tung-
dc.contributor.googleauthorHwang, Jang-Yeon-
dc.contributor.googleauthorSun, Yang-Kook-
dc.relation.code2020051687-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidyksun-
dc.identifier.orcidhttps://orcid.org/0000-0003-2005-0251-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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