DC Field | Value | Language |
---|---|---|
dc.contributor.author | Liu, Xian-Ming | ko |
dc.contributor.author | Huang, Zheng-Dong | ko |
dc.contributor.author | Oh, Seiwoon | ko |
dc.contributor.author | Ma, Peng-Cheng | ko |
dc.contributor.author | Chan, Philip C. H. | ko |
dc.contributor.author | Vedam, Ganesh Kumar | ko |
dc.contributor.author | Kang, Kisuk | ko |
dc.contributor.author | Kim, Jang-Kyo | ko |
dc.date.accessioned | 2010-11-22T01:50:55Z | - |
dc.date.available | 2010-11-22T01:50:55Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-07 | - |
dc.identifier.citation | JOURNAL OF POWER SOURCES, v.195, pp.4290 - 4296 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/10203/20190 | - |
dc.description.abstract | This study reports the development of multiwalled carbon nanotube (MWCNT)-LiMn2O4 nanocomposites by a facile sol-gel method. The elemental compositions, surface morphologies and structures of the nanocomposites are characterized with a view to their use as cathode materials for Li-ion batteries. The results indicate that the nanocomposite consists of LiMn2O4 nanoparticles containing undamaged MWCNTs. The nanocomposites show high cycle performance with a remarkable capacity retention of 99% after 20 cycles, compared with LiMn2O4 nanoparticles with a 9% loss of the initial capacity after 20 cycles. Measurements of a.c. impedance show that the charge-transfer resistance of the nanocomposites is much lower than that of spinel LiMn2O4. A cyclic voltammetry study further confirms higher reversibility of the nanocomposites compared with LiMn2O4 particles. The enhanced electrochemical performance of the nanocomposites is attributed to the formation of conductive networks by MWCNTs that act as intra-electrode wires, thereby facilitating charge-transfer among the spinel LiMn2O4 particles. (C) 2010 Elsevier B.V. All rights reserved. | - |
dc.description.sponsorship | This project was supported by the FINETEX-HKUSTR&DCenter (Project code: FTG001-MECH.07/08) and the Innovation and Technology Fund of Hong Kong SAR (Project code: GHP/028/08SZ). The authors are also grateful for the technical assistance from the Materials Characterization and Preparation Facilities (MCPF) of HKUST and Dr. Baohua Li from Tsinghua University in PR China. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | HIGH-RATE CAPABILITY | - |
dc.subject | SPINEL LIMN2O4 | - |
dc.subject | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject | ELECTRICAL-PROPERTIES | - |
dc.subject | CONDUCTIVE ADDITIVES | - |
dc.subject | ELEVATED-TEMPERATURE | - |
dc.subject | COMPOSITE CATHODE | - |
dc.subject | LITHIUM | - |
dc.subject | NANOTUBES | - |
dc.subject | FUNCTIONALIZATION | - |
dc.title | Sol-gel synthesis of multiwalled carbon nanotube-LiMn2O4 nanocomposites as cathode materials for Li-ion batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000276764600046 | - |
dc.identifier.scopusid | 2-s2.0-77949658277 | - |
dc.type.rims | ART | - |
dc.citation.volume | 195 | - |
dc.citation.beginningpage | 4290 | - |
dc.citation.endingpage | 4296 | - |
dc.citation.publicationname | JOURNAL OF POWER SOURCES | - |
dc.identifier.doi | 10.1016/j.jpowsour.2010.01.068 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kang, Kisuk | - |
dc.contributor.nonIdAuthor | Liu, Xian-Ming | - |
dc.contributor.nonIdAuthor | Huang, Zheng-Dong | - |
dc.contributor.nonIdAuthor | Oh, Seiwoon | - |
dc.contributor.nonIdAuthor | Ma, Peng-Cheng | - |
dc.contributor.nonIdAuthor | Chan, Philip C. H. | - |
dc.contributor.nonIdAuthor | Vedam, Ganesh Kumar | - |
dc.contributor.nonIdAuthor | Kim, Jang-Kyo | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Li-ion battery | - |
dc.subject.keywordAuthor | Nanocomposite | - |
dc.subject.keywordAuthor | Multiwalled carbon nanotube | - |
dc.subject.keywordAuthor | Cyclic performance | - |
dc.subject.keywordAuthor | Discharge capacity | - |
dc.subject.keywordPlus | HIGH-RATE CAPABILITY | - |
dc.subject.keywordPlus | SPINEL LIMN2O4 | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRICAL-PROPERTIES | - |
dc.subject.keywordPlus | CONDUCTIVE ADDITIVES | - |
dc.subject.keywordPlus | ELEVATED-TEMPERATURE | - |
dc.subject.keywordPlus | COMPOSITE CATHODE | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | NANOTUBES | - |
dc.subject.keywordPlus | FUNCTIONALIZATION | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.