Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Baek, Seong-Ho | - |
dc.contributor.author | Park, Jung-Soo | - |
dc.contributor.author | Bae, Eun-Jin | - |
dc.contributor.author | Jeong, Yong-Il | - |
dc.contributor.author | Noh, Bum-Young | - |
dc.contributor.author | Kim, Jae Hyun | - |
dc.date.available | 2017-07-11T06:30:19Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2013-12-15 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/3165 | - |
dc.description.abstract | In this study, we report the effect of the crystallographic orientation of silicon nanowires (SiNWs) on electrochemical performance as a negative electrode material. We synthesize vertically aligned SiNWs from differently oriented Si substrates with axial orientations of Si <100>, <110>, and <111> by the metal-assisted chemical etching method. To investigate the influence of a carbon matrix on SiNWs, various ratios of carbon/SiNWs are incorporated into negative electrode materials. The electrochemical performance of the <110>-SiNWs is greatly improved by increasing the carbon/SiNWs ratio from 0.5 to 2 compared to <100> and <111>-SiNWs. The electrochemical results reveal that a reversible capacity of more than 3200 mAh g-1 at a current rate of 0.1 C was obtained by using <110>-SiNWs with a carbon/SiNWs ratio of 2. The enhanced electrochemical performance is attributed to the relatively large interspacing between atoms along the <110> direction, which is much larger than those along the <100> and <111> directions. We also suggest that a large amount of carbon accommodates the volume expansion that occurs during the Li alloying/dealloying processes with Si and increases the electronic conductivity. © 2013 Elsevier B.V. All rights reserved. | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Influence of the crystallographic orientation of silicon nanowires in a carbon matrix on electrochemical performance as negative electrode materials for lithium-ion batteries | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jpowsour.2013.02.053 | - |
dc.identifier.scopusid | 2-s2.0-84886095367 | - |
dc.identifier.bibliographicCitation | Journal of Power Sources, v.244, pp.515 - 520 | - |
dc.subject.keywordAuthor | Lithium ion batteries | - |
dc.subject.keywordAuthor | Silicon nanowire | - |
dc.subject.keywordAuthor | Negative electrode materials | - |
dc.subject.keywordAuthor | Metal-assisted chemical etching | - |
dc.subject.keywordAuthor | Carbon matrix | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | ALLOY ANODES | - |
dc.subject.keywordPlus | PARTICLES | - |
dc.citation.endPage | 520 | - |
dc.citation.startPage | 515 | - |
dc.citation.title | Journal of Power Sources | - |
dc.citation.volume | 244 | - |
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