BROWSE

Related Scientist

cinap's photo.

cinap
나노구조물리연구단
more info

ITEM VIEW & DOWNLOAD

Carbon-based asymmetric capacitor for high-performance energy storage devices

DC Field Value Language
dc.contributor.authorDoyoungKim-
dc.contributor.authorKeunsik Lee-
dc.contributor.authorMeeree Kim-
dc.contributor.authorYongshin Kim-
dc.contributor.authorHyoyoung Lee-
dc.date.available2019-07-19T05:38:02Z-
dc.date.created2019-02-18-
dc.date.issued2019-03-
dc.identifier.issn0013-4686-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/5874-
dc.description.abstractCarbon-based materials are widely used in energy storage research, as attractive materials with high conductivity, low cost, and high availability. However, a relatively low performance (e.g., energy and power densities) compared with metal oxides is an obstacle to use for commercial applications. Herein, we report on high-performance metal oxide-free asymmetric capacitors (ASCs) using n-type and p-type graphene films which are doped by nitrogen and boron atoms, respectively, exhibiting high energy and power densities with excellent stability. The enhanced performances of the ASCs arises from the synergistic effect of the non-faradaic capacitance and pseudocapacitance, which are confirmed with new analysis using cyclic voltammetry and electrochemical impedance spectroscopy for a pseudocapacitance effect of intercalation/deintercalation and galvanostatic charge-discharge profiles for and non-faradaic capacitance. The new ASC in an ionic liquid electrolyte (e.g., pure EMIMBF4) shows the high energy density of 77.41 Wh kg−1 in 3.0 V of the operating potential window with the excellent retention stability of ∼87% after 10,000 cycles. The carbon-based asymmetric capacitor of semiconducting graphene electrodes can offer the promise of exploiting both non-faradaic capacitance and intercalation/deintercalation pseudocapacitance to obtain a high-performance energy storage device. © 2019 Elsevier Ltd-
dc.language영어-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectAsymmetric capacitor-
dc.subjectDoping graphene-
dc.subjectHetero doping-
dc.subjectPseudocapacitance-
dc.subjectWork function-
dc.titleCarbon-based asymmetric capacitor for high-performance energy storage devices-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000458488200055-
dc.identifier.scopusid2-s2.0-85060912727-
dc.identifier.rimsid67007-
dc.contributor.affiliatedAuthorDoyoungKim-
dc.contributor.affiliatedAuthorKeunsik Lee-
dc.contributor.affiliatedAuthorMeeree Kim-
dc.contributor.affiliatedAuthorHyoyoung Lee-
dc.identifier.doi10.1016/j.electacta.2019.01.141-
dc.identifier.bibliographicCitationELECTROCHIMICA ACTA, v.300, pp.461 - 469-
dc.relation.isPartOfELECTROCHIMICA ACTA-
dc.citation.titleELECTROCHIMICA ACTA-
dc.citation.volume300-
dc.citation.startPage461-
dc.citation.endPage469-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordAuthorAsymmetric capacitor-
dc.subject.keywordAuthorDoping graphene-
dc.subject.keywordAuthorHetero doping-
dc.subject.keywordAuthorPseudocapacitance-
dc.subject.keywordAuthorWork function-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
Carbon-based_Electrochimica Acta_Hyoyoung Lee.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

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

Browse