Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 송태섭 | - |
dc.date.accessioned | 2019-12-01T13:30:13Z | - |
dc.date.available | 2019-12-01T13:30:13Z | - |
dc.date.issued | 2017-10 | - |
dc.identifier.citation | SCIENCE ADVANCES, v. 3, no. 10, Article no. e1700509 | en_US |
dc.identifier.issn | 2375-2548 | - |
dc.identifier.uri | https://advances.sciencemag.org/content/3/10/e1700509 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/115904 | - |
dc.description.abstract | Key issues for Na-ion batteries are the development of promising electrode materials with favorable sites for Na+ ion intercalation/deintercalation and an understanding of the reaction mechanisms due to its high activation energy and poor electrochemical reversibility. We first report a layered H0.43Ti0.93Nb1.07O5 as a new anode material. This anode material is engineered to have dominant (200) and (020) planes with both a sufficiently large d-spacing of similar to 8.3 angstrom and two-dimensional ionic channels for easy Na+ ion uptake, which leads to a small volume expansion of similar to 0.6 angstrom along the c direction upon Na insertion (discharging) and the lowest energy barrier of 0.19 eV in the [020] plane among titanium oxide-based materials ever reported. The material intercalates and deintercalates reversibly 1.7 Na ions (similar to 200 mAh g(-1)) without a capacity fading in a potential window of 0.01 to 3.0 V versus Na/Na+. Na insertion/deinsertion takes place through a solid-solution reaction without a phase separation, which prevents coherent strain or stress in the microstructure during cycling and ensures promising sodium storage properties. These findings demonstrate a great potential of H0.43Ti0.93Nb1.07O5 as the anode, and our strategy can be applied to other layered metal oxides for promising sodium storage properties. | en_US |
dc.description.sponsorship | This work was supported by the Korea Institute of Energy Technology Evaluation and Planning and the Ministry of Trade, Industry, and Energy of the Republic of Korea through the Energy Efficiency and Resources Core Technology Program (no. 20142020104190) and the research on LIBs (no. 20168510050080). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | en_US |
dc.subject | ANODE MATERIAL | en_US |
dc.subject | ELECTROCHEMICAL-BEHAVIOR | en_US |
dc.subject | ELECTRODE MATERIALS | en_US |
dc.subject | ENERGY-STORAGE | en_US |
dc.subject | ANATASE TIO2 | en_US |
dc.subject | SODIUM | en_US |
dc.subject | BATTERIES | en_US |
dc.subject | LITHIUM | en_US |
dc.subject | OXIDES | en_US |
dc.subject | PHASES | en_US |
dc.title | Microstructural control of new intercalation layered titanoniobates with large and reversible d-spacing for easy Na+ ion uptake | en_US |
dc.type | Article | en_US |
dc.relation.no | 10 | - |
dc.relation.volume | 3 | - |
dc.identifier.doi | 10.1126/sciadv.1700509 | - |
dc.relation.page | 1-9 | - |
dc.relation.journal | Science advances | - |
dc.contributor.googleauthor | Park, Hyunjung | - |
dc.contributor.googleauthor | Kwon, Jiseok | - |
dc.contributor.googleauthor | Choi, Heechae | - |
dc.contributor.googleauthor | Song, Taeseup | - |
dc.contributor.googleauthor | Paik, Ungyu | - |
dc.relation.code | 2017039889 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | tssong | - |
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