DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ko, You Na | ko |
dc.contributor.author | Kang, Yun Chan | ko |
dc.contributor.author | Park, SeungBin | ko |
dc.date.accessioned | 2019-04-15T15:50:44Z | - |
dc.date.available | 2019-04-15T15:50:44Z | - |
dc.date.created | 2013-10-22 | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | NANOSCALE, v.5, no.19, pp.8899 - 8903 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10203/255299 | - |
dc.description.abstract | This paper presents the fabrication of yolk-shell V2O5 powders with a low melting temperature of 690 degrees C by using a simplified two-step process. The spherical V2O3-C composite obtained by spray pyrolysis transforms into yolk-shell V2O5 powder by a simple combustion process at 400 degrees C. The yolk-shell V2O5 powders are composed of nanoplate crystals several tens of nanometers in size, and have a BET surface area of 15 m(2) g(-1). The powders exhibit initial discharge and charge capacities of 271 and 264 mA h g(-1) at a current density of 1000 mA g(-1), respectively, and a corresponding Coulombic efficiency of 97.4%. After 100 cycles, the discharge capacity of the yolk-shell V2O5 powders is 201 mA h g(-1). In contrast, spherical V2O5 powders with a dense structure exhibit low initial discharge and charge capacities of 160 and 145 mA h g(-1), respectively. The structural stability of the yolk-shell during Li-ion insertion and extraction improves the electrochemical properties of the V2O5 powders, even at high current densities. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | TEMPLATE-FREE SYNTHESIS | - |
dc.subject | HOLLOW CARBON SPHERES | - |
dc.subject | CATHODE MATERIALS | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | LITHIUM-STORAGE | - |
dc.subject | VANADIUM-OXIDE | - |
dc.subject | ANODE MATERIAL | - |
dc.subject | MICROSPHERES | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | FILMS | - |
dc.title | A new strategy for synthesizing yolk-shell V2O5 powders with low melting temperature for high performance Li-ion batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000324500900013 | - |
dc.identifier.scopusid | 2-s2.0-84884268294 | - |
dc.type.rims | ART | - |
dc.citation.volume | 5 | - |
dc.citation.issue | 19 | - |
dc.citation.beginningpage | 8899 | - |
dc.citation.endingpage | 8903 | - |
dc.citation.publicationname | NANOSCALE | - |
dc.identifier.doi | 10.1039/c3nr02625f | - |
dc.contributor.localauthor | Park, SeungBin | - |
dc.contributor.nonIdAuthor | Ko, You Na | - |
dc.contributor.nonIdAuthor | Kang, Yun Chan | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | TEMPLATE-FREE SYNTHESIS | - |
dc.subject.keywordPlus | HOLLOW CARBON SPHERES | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | LITHIUM-STORAGE | - |
dc.subject.keywordPlus | VANADIUM-OXIDE | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | FILMS | - |
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