DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoo, Jung-Keun | ko |
dc.contributor.author | Kim, Jongsoon | ko |
dc.contributor.author | Choi, Min-Jae | ko |
dc.contributor.author | Park, Young-Uk | ko |
dc.contributor.author | Hong, Jihyun | ko |
dc.contributor.author | Baek, Kwang Min | ko |
dc.contributor.author | Kang, Kisuk | ko |
dc.contributor.author | Jung, Yeon Sik | ko |
dc.date.accessioned | 2015-01-29T07:25:20Z | - |
dc.date.available | 2015-01-29T07:25:20Z | - |
dc.date.created | 2014-12-16 | - |
dc.date.created | 2014-12-16 | - |
dc.date.issued | 2014-11 | - |
dc.identifier.citation | ADVANCED ENERGY MATERIALS, v.4, no.16 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | http://hdl.handle.net/10203/193896 | - |
dc.description.abstract | Although magnesiothermic reduction has attracted immense attention as a facile route for the fabrication of mass-scale Si nanostructures for high-capacity lithium-ion battery applications, its low conversion yield (<50%) and the discovery of a sustainable and low-cost precursor remain challenging. Here, an unprecedentedly high final conversion yield (>98%) of magnesiothermic reduction based on control of reaction pressure is reported. The successful use of sand as a nearly infinite and extremely low-cost source for the high-yield fabrication of nanostructured Si electrodes for Li-ion batteries is demonstrated. On the basis of a step-by-step analysis of the material's structural, morphological, and compositional changes, a two-step conversion reaction mechanism is proposed that can clearly explain the phase behavior and the high conversion yield. The excellent charge-discharge performance (specific capacities over 1500 mAh g(-1) for 100 cycles) of the hierarchical Si nanostructure suggests that this facile, fast, and high-efficiency synthesis strategy from ultralow-cost sand particles provides outstanding cost-effectiveness and possible scalability for the commercialization of Si electrodes for energy-storage applications. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | SILICON NANOWIRES | - |
dc.subject | COMPOSITE ANODES | - |
dc.subject | POROUS SILICON | - |
dc.subject | PERFORMANCE | - |
dc.subject | NANOSCALE | - |
dc.subject | REDUCTION | - |
dc.subject | MAGNESIUM | - |
dc.subject | STORAGE | - |
dc.subject | CELLS | - |
dc.title | Extremely High Yield Conversion from Low-Cost Sand to High-Capacity Si Electrodes for Li-Ion Batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000345314800008 | - |
dc.identifier.scopusid | 2-s2.0-84911396338 | - |
dc.type.rims | ART | - |
dc.citation.volume | 4 | - |
dc.citation.issue | 16 | - |
dc.citation.publicationname | ADVANCED ENERGY MATERIALS | - |
dc.identifier.doi | 10.1002/aenm.201400622 | - |
dc.contributor.localauthor | Kang, Kisuk | - |
dc.contributor.localauthor | Jung, Yeon Sik | - |
dc.contributor.nonIdAuthor | Kim, Jongsoon | - |
dc.contributor.nonIdAuthor | Park, Young-Uk | - |
dc.contributor.nonIdAuthor | Hong, Jihyun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SILICON NANOWIRES | - |
dc.subject.keywordPlus | COMPOSITE ANODES | - |
dc.subject.keywordPlus | POROUS SILICON | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOSCALE | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | MAGNESIUM | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | CELLS | - |
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