Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김한수 | - |
dc.date.accessioned | 2022-12-15T00:08:04Z | - |
dc.date.available | 2022-12-15T00:08:04Z | - |
dc.date.issued | 2021-11 | - |
dc.identifier.citation | NANO ENERGY, v. 89, article no. 106378, Page. 1-11 | en_US |
dc.identifier.issn | 2211-2855;2211-3282 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S2211285521006339?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/178322 | - |
dc.description.abstract | Silicon monoxide (SiO) based materials are the most widely used high-capacity anode materials for commercialized lithium-ion batteries. However, their low initial Coulombic efficiency (ICE) hinders their full potential as anode materials for lithium-ion batteries. Here, we demonstrate that Li metal-free dehydrogenation-driven prelithiation employing lithium hydride (LiH) could improve the ICE of SiO up to 90.5%. Lithium liberated from LiH served as a source for preemptive formation of lithium silicate phases that are the main reason for the poor ICE of SiO, leading to three-dimensionally networked Si/lithium silicate nanocomposites, which were visualized by laser-assisted atom probe tomography (LA-APT) and scanning transmission electron microscopy (STEM). The prelithiated SiO delivered a capacity of 1203 mAh g−1 with an ICE of 90.5% without any degradation in other electrochemical performance. The improved ICE of prelithiated SiO made possible to enhance the energy density of full cell (37 mAh) by 50% compared to that adopting pristine SiO with an excellent cycle performance over 800 cycles. © 2021 Elsevier Ltd | en_US |
dc.description.sponsorship | This research was supported by the Korea Evaluation Institute of Industrial Technology (KEIT) , which is funded by the Ministry of Trade, Industry and Energy, Republic of Korea (No. 10067182) and the Tech-nology Development Program to Solve Climate Changes through the National Research Foundation of Korea (NRF) grant funded by the Korea government (MIST) (NRF-2017M1A2A2044501) . | en_US |
dc.language | en | en_US |
dc.publisher | ELSEVIER | en_US |
dc.subject | SiO | en_US |
dc.subject | Lithium-ion batteries | en_US |
dc.subject | Lithium hydride | en_US |
dc.subject | Initial Coulombic efficiency | en_US |
dc.subject | Lithiation | en_US |
dc.title | Dehydrogenation-driven Li metal-free prelithiation for high initial efficiency SiO-based lithium storage materials | en_US |
dc.type | Article | en_US |
dc.relation.volume | 89 | - |
dc.identifier.doi | 10.1016/j.nanoen.2021.106378 | en_US |
dc.relation.page | 1-11 | - |
dc.relation.journal | NANO ENERGY | - |
dc.contributor.googleauthor | Chung, Dong Jae | - |
dc.contributor.googleauthor | Youn, Donghan | - |
dc.contributor.googleauthor | Kim, Soohwan | - |
dc.contributor.googleauthor | Ma, Donghyeok | - |
dc.contributor.googleauthor | Lee, Jiwhan | - |
dc.contributor.googleauthor | Jeong, Won Joon | - |
dc.contributor.googleauthor | Park, Eunjun | - |
dc.contributor.googleauthor | Kim, Joon-Sup | - |
dc.contributor.googleauthor | Moon, Chulsoon | - |
dc.contributor.googleauthor | Lee, Ji Yeong | - |
dc.contributor.googleauthor | Sun, Heeyoung | - |
dc.contributor.googleauthor | Kim, Hansu | - |
dc.sector.campus | S | - |
dc.sector.daehak | 공과대학 | - |
dc.sector.department | 에너지공학과 | - |
dc.identifier.pid | khansu | - |
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