DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kang, Yong-Mook | ko |
dc.contributor.author | Park, Min-Sik | ko |
dc.contributor.author | Song, Min-Sang | ko |
dc.contributor.author | Lee, Jai Young | ko |
dc.date.accessioned | 2013-03-07T09:14:46Z | - |
dc.date.available | 2013-03-07T09:14:46Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2006-11 | - |
dc.identifier.citation | JOURNAL OF POWER SOURCES, v.162, no.2, pp.1336 - 1340 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/10203/89853 | - |
dc.description.abstract | Si-carbon composite prepared by mechanical milling showed good cyclic capacity retention until the utilization of Si was limited below 32%, whereas the retention of a Si-Cu-carbon composite obtained by two-step mechanical milling was maintained up to 55%. A comparison between the first charge curves of a Si-carbon composite and a Si-Cu-carbon composite at 0.1C, indicated that the Si-carbon composite underwent a much higher polarization than the Si-Cu-carbon composite, leading to the difference in utilization of Si. Impedance spectroscopy let us confirm that the electrochemical alloying between Si and Li+ is much easier in the Si-Cu-carbon composite than in the Si-carbon composite. The superiority of the Si-Cu-carbon composite in kinetics enabled its electrode to have a more homogeneous Li+ concentration after Li+ insertion. Because this phenomenon means that the Si-Cu-carbon composite has a more homogeneous volume expansion than the Si-carbon composite, the disparity in electrochemical performance between the Si-carbon composite and the Si-Cu-carbon composite was attributed to enhanced Li+ transfer in the Si-Cu-carbon composite. (c) 2006 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | Elsevier Science Bv | - |
dc.subject | LITHIUM | - |
dc.subject | BATTERIES | - |
dc.subject | TIN | - |
dc.title | A relation between enhanced Li ion transfer and the improvement in electrochemical performance of a Si-Cu-carbon composite | - |
dc.type | Article | - |
dc.identifier.wosid | 000242821500084 | - |
dc.identifier.scopusid | 2-s2.0-33750940749 | - |
dc.type.rims | ART | - |
dc.citation.volume | 162 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 1336 | - |
dc.citation.endingpage | 1340 | - |
dc.citation.publicationname | JOURNAL OF POWER SOURCES | - |
dc.identifier.doi | 10.1016/j.jpowsour.2006.07.048 | - |
dc.contributor.nonIdAuthor | Kang, Yong-Mook | - |
dc.contributor.nonIdAuthor | Park, Min-Sik | - |
dc.contributor.nonIdAuthor | Song, Min-Sang | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Si-Cu-carbon | - |
dc.subject.keywordAuthor | Li ion transfer | - |
dc.subject.keywordAuthor | Li+ depth profile | - |
dc.subject.keywordAuthor | volume expansion | - |
dc.subject.keywordAuthor | Li ion battery | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | TIN | - |
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