Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 임원빈 | - |
dc.date.accessioned | 2019-11-21T01:54:51Z | - |
dc.date.available | 2019-11-21T01:54:51Z | - |
dc.date.issued | 2017-03 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 7, Article no. 45579 | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://www.nature.com/articles/srep45579 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/113045 | - |
dc.description.abstract | Recently, composite materials based on Li-Mn-Ti-O system were developed to target low cost and environmentally benign cathodes for Li-ion batteries. The spinel-layered Li1.5MnTiO4+delta bulk particles showed excellent cycle stability but poor rate performance. To address this drawback, ultralong nanofibers of a Li1.5MnTiO4+delta spinel-layered heterostructure were synthesized by electrospinning. Uniform nanofibers with diameters of about 80 nm were formed of tiny octahedral particles wrapped together into 30 mu m long fibers. The Li1.5MnTiO4+delta nanofibers exhibited an improved rate capability compared to both Li1.5MnTiO4+delta nanoparticles and bulk particles. The uniform one-dimensional nanostructure of the composite cathode exhibited enhanced capacities of 235 and 170 mAh g(-1) at C/5 and 1 C rates, respectively. Its unique structure provided a large effective contact area for Li+ diffusion, and low charge transfer resistance. Moreover, the layered phase contributed to its capacity in over 3 V region, which increased specific energy (726 Wh kg(-1)) compared to the bulk particles (534 Wh kg(-1)). | en_US |
dc.description.sponsorship | This research was supported by the Strategic Key-Material Development and the Materials and Components Research and Development bodies, funded by the Ministry of Knowledge Economy (MKE, Korea, 10044203). This work was also financially supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF2014R1A1A1002909, 2016R1E1A2020571). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.title | High-performance spinel-rich Li1.5MnTiO4+δ ultralong nanofibers as cathode materials for Li-ion batteries | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1038/srep45579 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | Ngoc Hung Vu | - |
dc.contributor.googleauthor | Arunkumar, Paulraj | - |
dc.contributor.googleauthor | Im, Won Bin | - |
dc.relation.code | 2017003408 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | imwonbin | - |
dc.identifier.researcherID | B-1335-2011 | - |
dc.identifier.orcid | http://orcid.org/0000-0003-2473-4714 | - |
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