Full metadata record

DC Field Value Language
dc.contributor.authorHwang, Junesun-
dc.contributor.authorKim, Kyungbae-
dc.contributor.authorJung, Woo-Sang-
dc.contributor.authorChoi, Hyunjoo-
dc.contributor.authorKim, Jae-Hun-
dc.date.accessioned2024-01-19T19:02:48Z-
dc.date.available2024-01-19T19:02:48Z-
dc.date.created2021-09-04-
dc.date.issued2019-10-01-
dc.identifier.issn0378-7753-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/119480-
dc.description.abstractAmorphous SiO materials are considered to be alternative high-capacity anode materials for Li-ion batteries. However, the conventional preparation method is a high-temperature and energy-consuming vacuum process. In this study, a simple strategy to produce a SiOx material is proposed. Low-cost micron-sized Si and amorphous SiO2 powders are mechanochemically mixed using a high-energy mechanical milling process. As a result, SiOx materials are produced that have the potential to replace the current commercial SiO powders. The X-ray photoelectron spectra exhibit that the chemical bonding state of Si in the synthesized SiOx materials is similar to commercial SiO. The electron microscopic analyses demonstrate that the secondary particle sizes are reduced and Si crystallites with sizes of a few nanometers to a few tens of nanometers are embedded in the silicon oxide matrix. Due to the morphology and microstructure, the initial coulombic efficiency and cycling stability of the SiOx materials are greatly improved compared to the commercial SiO sample. To further enhance the electrochemical properties, carbon incorporations are carried out, which result in an excellent cycle performance being achieved for the Li-ion battery anodes. The ball-milled SiOx material has ample potential as an alternative to conventional SiO materials.-
dc.languageEnglish-
dc.publisherELSEVIER-
dc.subjectPOROUS SILICON MONOXIDE-
dc.subjectHIGH-CAPACITY-
dc.subjectFLUOROETHYLENE CARBONATE-
dc.subjectANODE MATERIAL-
dc.subjectPERFORMANCE-
dc.subjectCOMPOSITE-
dc.subjectGRAPHENE-
dc.subjectMECHANISM-
dc.subjectINTERPHASE-
dc.subjectBATTERIES-
dc.titleFacile and scalable synthesis of SiOx materials for Li-ion negative electrodes-
dc.typeArticle-
dc.identifier.doi10.1016/j.jpowsour.2019.226883-
dc.description.journalClass1-
dc.identifier.bibliographicCitationJOURNAL OF POWER SOURCES, v.436-
dc.citation.titleJOURNAL OF POWER SOURCES-
dc.citation.volume436-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000483408400021-
dc.identifier.scopusid2-s2.0-85068841719-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryElectrochemistry-
dc.relation.journalWebOfScienceCategoryEnergy & Fuels-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaElectrochemistry-
dc.relation.journalResearchAreaEnergy & Fuels-
dc.relation.journalResearchAreaMaterials Science-
dc.type.docTypeArticle-
dc.subject.keywordPlusPOROUS SILICON MONOXIDE-
dc.subject.keywordPlusHIGH-CAPACITY-
dc.subject.keywordPlusFLUOROETHYLENE CARBONATE-
dc.subject.keywordPlusANODE MATERIAL-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusCOMPOSITE-
dc.subject.keywordPlusGRAPHENE-
dc.subject.keywordPlusMECHANISM-
dc.subject.keywordPlusINTERPHASE-
dc.subject.keywordPlusBATTERIES-
dc.subject.keywordAuthorLi secondary battery-
dc.subject.keywordAuthorLi-alloy type-
dc.subject.keywordAuthorHigh-capacity-
dc.subject.keywordAuthorAnode-
dc.subject.keywordAuthorSilicon monoxide-
dc.subject.keywordAuthorBall milling-
Appears in Collections:
KIST Article > 2019
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE