Ultra-light Hierarchical Graphene Electrode for Binder-Free Supercapacitors and Lithium-Ion Battery Anodes
DC Field | Value | Language |
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dc.contributor.author | Zuo, Z. | - |
dc.contributor.author | Kim, T.Y. | - |
dc.contributor.author | Kholmanov, I. | - |
dc.contributor.author | Li, H. | - |
dc.contributor.author | Chou, H. | - |
dc.contributor.author | Li, Y. | - |
dc.date.available | 2020-02-28T11:41:19Z | - |
dc.date.created | 2020-02-12 | - |
dc.date.issued | 2015-10 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/11054 | - |
dc.description.abstract | A mild and environmental-friendly method is developed for fabricating a 3D interconnected graphene electrode with large-scale continuity. Such material has interlayer pores between reduced graphene oxide nanosheets and in-plane pores. Hence, a specific surface area up to 835 m2 g-1 and a high powder conductivity up to 400 S m-1 are achieved. For electrochemical applications, the interlayer pores can serve as ion-buffering reservoirs while in-plane ones act as channels for shortening the mass cross-plane diffusion length, reducing the ion response time, and prevent the interlayer restacking. As binder-free supercapacitor electrode, it delivers a specific capacitance up to 169 F g-1 with surface-normalized capacitance close to 21 μF cm-2 (intrinsic capacitance) and power density up to 7.5 kW kg-1, in 6 m KOH aqueous electrolyte. In the case of lithium-ion battery anode, it shows remarkable advantages in terms of the initiate reversible Coulombic efficiency (61.3%), high specific capacity (932 mAh g-1 at 100 mA g-1), and robust long-term retention (93.5% after 600 cycles at 2000 mAh g-1). An ultra-light hierarchical graphene electrode is prepared via a new and environmental-friendly activation method. It has a specific surface area up to 835 m2 g-1 and a powder conductivity of 400 S m-1. As binder-free electrode, it delivers a robust and high specific capacitance in supercapacitors and a capacity in lithium-ion anodes with a very high charge/discharge rate. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.relation.isPartOf | SMALL | - |
dc.title | Ultra-light Hierarchical Graphene Electrode for Binder-Free Supercapacitors and Lithium-Ion Battery Anodes | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000362819400015 | - |
dc.identifier.doi | 10.1002/smll.201501434 | - |
dc.identifier.bibliographicCitation | SMALL, v.11, no.37, pp.4922 - 4930 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-84942988741 | - |
dc.citation.endPage | 4930 | - |
dc.citation.startPage | 4922 | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 11 | - |
dc.citation.number | 37 | - |
dc.contributor.affiliatedAuthor | Kim, T.Y. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | 3D electrodes, electrodes | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
dc.subject.keywordAuthor | porous electrodes | - |
dc.subject.keywordAuthor | supercapacitors | - |
dc.subject.keywordPlus | Binders | - |
dc.subject.keywordPlus | Bins | - |
dc.subject.keywordPlus | Capacitance | - |
dc.subject.keywordPlus | Capacitors | - |
dc.subject.keywordPlus | Composite films | - |
dc.subject.keywordPlus | Electric batteries | - |
dc.subject.keywordPlus | Electrodes | - |
dc.subject.keywordPlus | Electrolytic capacitors | - |
dc.subject.keywordPlus | Graphene | - |
dc.subject.keywordPlus | Graphite electrodes | - |
dc.subject.keywordPlus | Ions | - |
dc.subject.keywordPlus | Lithium | - |
dc.subject.keywordPlus | Lithium alloys | - |
dc.subject.keywordPlus | Lithium compounds | - |
dc.subject.keywordPlus | 3-D electrodes | - |
dc.subject.keywordPlus | Electrochemical applications | - |
dc.subject.keywordPlus | Environmental friendly methods | - |
dc.subject.keywordPlus | Lithium-ion battery anodes | - |
dc.subject.keywordPlus | Porous electrodes | - |
dc.subject.keywordPlus | Reduced graphene oxides | - |
dc.subject.keywordPlus | Super capacitor | - |
dc.subject.keywordPlus | Supercapacitor electrodes | - |
dc.subject.keywordPlus | Lithium-ion batteries | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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