Porosity-Controlled TiNb2O7 Microspheres with Partial Nitridation as A Practical Negative Electrode for High-Power Lithium-Ion Batteries
DC Field | Value | Language |
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dc.contributor.author | Park, Hyunjung | - |
dc.contributor.author | Wu, Hao Bin | - |
dc.contributor.author | Song, Taeseup | - |
dc.contributor.author | Lou, Xiong Wen (David) | - |
dc.contributor.author | Paik, Ungyu | - |
dc.date.accessioned | 2022-07-15T23:39:36Z | - |
dc.date.available | 2022-07-15T23:39:36Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2015-04 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157610 | - |
dc.description.abstract | Titanium niobium oxide (TiNb2O7) has been recognized as a promising anode material for lithium-ion batteries (LIBs) in view of its potential to operate at high rates with improved safety and high theoretical capacity of 387 mAh g(-1). However, it suffers from poor Li+ ion diffusivity and low electronic conductivity originated from its wide band gap energy (E-g > 2 eV). Here, porous TiNb2O7 microspheres (PTNO MSs) are prepared via a facile solvothermal reaction. PTNO MSs have a particle size of approximate to 1.2 mu m and controllable pore sizes in the range of 5-35 nm. Ammonia gas nitridation treatment is conducted on PTNO MSs to introduce conducting Ti1-xNbxN layer on the surface and form nitridated PTNO (NPTNO) MSs. The porous structure and conducting Ti1-xNbxN layer enhance the transport kinetics associated with Li+ ions and electrons, which leads to significant improvement in electrochemical performance. As a result, the NPTNO electrode shows a high discharge capacity of approximate to 265 mAh g(-1), remarkable rate capability (approximate to 143 mAh g(-1) at 100 C) and durable long-term cyclability (approximate to 91% capacity retention over 1000 cycles at 5 C). These results demonstrate the great potential of TiNb2O7 as a practical high-rate anode material for LIBs. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Porosity-Controlled TiNb2O7 Microspheres with Partial Nitridation as A Practical Negative Electrode for High-Power Lithium-Ion Batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Paik, Ungyu | - |
dc.identifier.doi | 10.1002/aenm.201401945 | - |
dc.identifier.scopusid | 2-s2.0-84928213554 | - |
dc.identifier.wosid | 000353357600013 | - |
dc.identifier.bibliographicCitation | ADVANCED ENERGY MATERIALS, v.5, no.8, pp.1 - 7 | - |
dc.relation.isPartOf | ADVANCED ENERGY MATERIALS | - |
dc.citation.title | ADVANCED ENERGY MATERIALS | - |
dc.citation.volume | 5 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 7 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | LONG-LIFE | - |
dc.subject.keywordPlus | LI4TI5O12 | - |
dc.subject.keywordPlus | ANODE | - |
dc.subject.keywordPlus | XPS | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordAuthor | anodes | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
dc.subject.keywordAuthor | microspheres | - |
dc.subject.keywordAuthor | TiNb2O7 | - |
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