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DC Field | Value | Language |
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dc.citation.endPage | 1746 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 1739 | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Wang, Bin | - |
dc.contributor.author | Ryu, Jaegeon | - |
dc.contributor.author | Choi, Sungho | - |
dc.contributor.author | Song, Gyujin | - |
dc.contributor.author | Hong, Dongki | - |
dc.contributor.author | Hwang, Chihyun | - |
dc.contributor.author | Chen, Xiong | - |
dc.contributor.author | Wang, Bo | - |
dc.contributor.author | Li, Wei | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.contributor.author | Park, Soojin | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.date.accessioned | 2023-12-21T21:09:24Z | - |
dc.date.available | 2023-12-21T21:09:24Z | - |
dc.date.created | 2018-03-27 | - |
dc.date.issued | 2018-02 | - |
dc.description.abstract | We show that a high energy density can be achieved in a practical manner with freestanding electrodes without using conductive carbon, binders, and current collectors. We made and used a folded graphene composite electrode designed for a high areal capacity anode. The traditional thick graphene composite electrode, such as made by filtering graphene oxide to create a thin film and reducing it such as through chemical or thermal methods, has sluggish reaction kinetics. Instead, we have made and tested a thin composite film electrode that was folded several times using a water-assisted method; it provides a continuous electron transport path in the fold regions and introduces more channels between the folded layers, which significantly enhances the electron/ion transport kinetics. A fold electrode consisting of SnO2/graphene with high areal loading of 5 mg cm-2 has a high areal capacity of 4.15 mAh cm-2, well above commercial graphite anodes (2.50-3.50 mAh cm-2), while the thickness is maintained as low as ∼20 μm. The fold electrode shows stable cycling over 500 cycles at 1.70 mA cm-2 and improved rate capability compared to thick electrodes with the same mass loading but without folds. A full cell of fold electrode coupled with LiCoO2 cathode was assembled and delivered an areal capacity of 2.84 mAh cm-2 after 300 cycles. This folding strategy can be extended to other electrode materials and rechargeable batteries. | - |
dc.identifier.bibliographicCitation | ACS NANO, v.12, no.2, pp.1739 - 1746 | - |
dc.identifier.doi | 10.1021/acsnano.7b08489 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.scopusid | 2-s2.0-85042692621 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23906 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsnano.7b08489 | - |
dc.identifier.wosid | 000426615600085 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Folding Graphene Film Yields High Areal Energy Storage in Lithium-Ion Batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | folding | - |
dc.subject.keywordAuthor | graphene composite films | - |
dc.subject.keywordAuthor | high areal capacity | - |
dc.subject.keywordAuthor | high mass loading | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
dc.subject.keywordPlus | FREE ANODE | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | PAPER | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | AEROGELS | - |
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