There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | A434 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | A430 | - |
dc.citation.title | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.citation.volume | 156 | - |
dc.contributor.author | Jo, Minki | - |
dc.contributor.author | Hong, Young-Sik | - |
dc.contributor.author | Choo, Jaebum | - |
dc.contributor.author | Cho, Jaephil | - |
dc.date.accessioned | 2023-12-22T08:06:26Z | - |
dc.date.available | 2023-12-22T08:06:26Z | - |
dc.date.created | 2013-06-13 | - |
dc.date.issued | 2009-06 | - |
dc.description.abstract | The effect of LiCoO2 cathode nanoparticle size on high-rate performance in Li-ion batteries was investigated using hydrothermally prepared oleylamine-capped LiCoO2 nanoparticles with a particle size of 50 nm obtained at 200 degrees C. Upon annealing as-prepared LiCoO2 at 500, 700, and 900 degrees C, the particle size increased to 100 nm, 300 nm, and 1 mu m, respectively. Ex situ transmission electron microscopy and X-ray diffraction results indicated that the thickness of the solid electrolyte interface (SEI) affected the particle's electrochemical properties at high rates. A LiCoO2 cathode with a smaller particle size had a thicker SEI layer, which acted as a barrier for Li-ion diffusion, resulting in deteriorated rate capabilities at higher C rates. However, irrespective of the particle size, there was no structural degradation after cycling. Rate capability tests were performed under two different electrode densities (3.4 and 2.8 g/cm(3)), and LiCoO2 with a particle size of 300 nm demonstrated the best rate capability at higher C rates. Upon extended cycling at the 7 C rate, LiCoO2 with a particle size of 300 nm exhibited 87 and 150 mAh/g under 3.4 and 2.8 g/cm(3), respectively. | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.156, no.6, pp.A430 - A434 | - |
dc.identifier.doi | 10.1149/1.3111031 | - |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.scopusid | 2-s2.0-65449130747 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/2670 | - |
dc.identifier.url | http://jes.ecsdl.org/content/156/6/A430 | - |
dc.identifier.wosid | 000265737600005 | - |
dc.language | 영어 | - |
dc.publisher | ELECTROCHEMICAL SOC INC | - |
dc.title | Effect of LiCoO2 Cathode Nanoparticle Size on High Rate Performance for Li-Ion Batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry; Materials Science, Coatings & Films | - |
dc.relation.journalResearchArea | Electrochemistry; Materials Science | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | annealing | - |
dc.subject.keywordAuthor | cathodes | - |
dc.subject.keywordAuthor | electrochemical electrodes | - |
dc.subject.keywordAuthor | nanoparticles | - |
dc.subject.keywordAuthor | secondary cells | - |
dc.subject.keywordAuthor | surface diffusion | - |
dc.subject.keywordAuthor | transmission electron microscopy | - |
dc.subject.keywordAuthor | X-ray diffraction | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.