Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 선양국 | - |
dc.date.accessioned | 2020-08-06T08:01:39Z | - |
dc.date.available | 2020-08-06T08:01:39Z | - |
dc.date.issued | 2019-08 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v. 7, no. 31, Page. 18580-18588 | en_US |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.issn | 2050-7496 | - |
dc.identifier.uri | https://pubs.rsc.org/en/content/articlelanding/2019/TA/C9TA06402H#!divAbstract | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/152093 | - |
dc.description.abstract | A series of W-doped (1.0, 1.5, and 2.0 mol%) LiNiO2 cathodes was synthesized to systematically investigate the stabilization effect of W doping. The 2 mol% W-LiNiO2 cathode delivered 195.6 mA h g(-1) even after 100 cycles at 0.5C, which was 95.5% of its initial capacity. The capacity retention of LiNiO2 cycled under the same conditions was 73.7%. In situ X-ray diffraction analysis of the cathodes during charging showed that the W doping protracted the deleterious phase transition to the extent that the two-phase reaction (H2 -> H3) merged into a single phase; thus, the phase transition proceeded through a solid-solution-like reaction. The significantly enhanced cycling stability due to W doping largely originated from the reduction of the structural stress associated with the repetitive phase transition caused by the reduction of the abrupt lattice collapse/expansion. The effect of the reduced lattice distortion together with the W-rich surface phase and cation ordering greatly stabilized the LiNiO2 structure during cycling, making W-doped LiNiO2 a candidate material for practical high-energy density cathodes. | en_US |
dc.description.sponsorship | This work was supported by the Global Frontier R&D Programme (2013M3A6B1078875) on the Center for Hybrid Interface Materials (HIM), by the Ministry of Science and ICT, and supported by a Human Resources Development programme (No. 20184010201720) of a Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant, funded by the Ministry of Trade, Industry and Energy of the Korean government. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ROYAL SOC CHEMISTRY | en_US |
dc.subject | ELECTROCHEMICAL PROPERTIES | en_US |
dc.subject | NI-RICH | en_US |
dc.subject | CAPACITY | en_US |
dc.subject | LIXNIO2 | en_US |
dc.title | Suppressing detrimental phase transitions via tungsten doping of LiNiO2 cathode for next-generation lithium-ion batteries | en_US |
dc.type | Article | en_US |
dc.relation.no | 31 | - |
dc.relation.volume | 7 | - |
dc.identifier.doi | 10.1039/c9ta06402h | - |
dc.relation.page | 18580-18588 | - |
dc.relation.journal | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.contributor.googleauthor | Ryu, Hoon-Hee | - |
dc.contributor.googleauthor | Park, Geon-Tae | - |
dc.contributor.googleauthor | Yoon, Chong S. | - |
dc.contributor.googleauthor | Sun, Yang-Kook | - |
dc.relation.code | 2019036214 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | yksun | - |
dc.identifier.researcherID | B-9157-2013 | - |
dc.identifier.orcid | https://orcid.org/0000-0002-0117-0170 | - |
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