Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김운혁 | - |
dc.date.accessioned | 2022-10-20T06:39:49Z | - |
dc.date.available | 2022-10-20T06:39:49Z | - |
dc.date.issued | 2021-02 | - |
dc.identifier.citation | CHEMICAL ENGINEERING JOURNAL, v. 405, Page. 126887 | en_US |
dc.identifier.issn | 1385-8947 ; 1873-3212 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S1385894720330151?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175633 | - |
dc.description.abstract | Ni-rich Li[NixCoyMn1−x−y]O2 (x ≥ 0.8) cathodes suffer from structural degradation and capacity fading owing to the microcracks generated by abrupt volume contraction in the deeply charged state. To resolve this problem, the substitution of Ni by Sn in Li[Ni0.90Co0.05Mn0.05]O2 is proposed. Li[Ni0.897Co0.05Mn0.05Sn0.003]O2 (Sn-NCM90) has a unique microstructure in which the primary particles are oriented along the radial direction. This radial alignment, combined with the (0 0 1) crystallographic texture, suppresses microcrack formation and propagation by effectively relieving an internal strain in the deeply charged state. The microstructure-modified Sn-NCM90 cathode delivers a discharge capacity of 224.3 mAh g−1 and exhibits a capacity retention of 92.9% after 100 cycles at 4.3 V and 82.9% at 4.4 V. The proposed Sn substitution method shows that appropriate microstructural modification of the cathode can improve the cycling stability of Ni-rich layered cathodes. | en_US |
dc.description.sponsorship | This work was mainly supported by the Global Frontier R&D Programme (no. NRF-2013M3A6B1078875) on the Center for Hybrid Interface Materials (HIM), by the Ministry of Science, ICT & Future Planning. Additionally, this work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government Ministry of Education and Science Technology (MEST) (no. NRF-2018R1A2B3008794). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Lithium-ion batteries; Ni-rich cathode; Crystallographic texture; Crystallographic orientation; Sn substitution; Microcrack suppression | en_US |
dc.title | Enhanced cycling stability of Sn-doped Li[Ni0.90Co0.05Mn0.05]O2 via optimization of particle shape and orientation | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.cej.2020.126887 | en_US |
dc.relation.page | 126887 | - |
dc.relation.journal | CHEMICAL ENGINEERING JOURNAL | - |
dc.contributor.googleauthor | Nguyen, Trung Thien | - |
dc.contributor.googleauthor | Kim, Un-Hyuck | - |
dc.contributor.googleauthor | Yoon, Chong S. | - |
dc.contributor.googleauthor | Sun, Yang-Kook | - |
dc.relation.code | 2021003475 | - |
dc.sector.campus | S | - |
dc.sector.daehak | INDUSTRY-UNIVERSITY COOPERATION FOUNDATION[S] | - |
dc.sector.department | RESEARCH INSTITUTE | - |
dc.identifier.pid | uhkim | - |
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