Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김한수 | - |
dc.date.accessioned | 2019-12-08T03:37:59Z | - |
dc.date.available | 2019-12-08T03:37:59Z | - |
dc.date.issued | 2018-05 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 8, Article no. 6904 | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://www.nature.com/articles/s41598-018-25159-4 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/118724 | - |
dc.description.abstract | Silicon (Si) based materials are highly desirable to replace currently used graphite anode for lithium ion batteries. Nevertheless, its usage is still a big challenge due to poor battery performance and scale-up issue. In addition, two-dimensional (2D) architectures, which remain unresolved so far, would give them more interesting and unexpected properties. Herein, we report a facile, cost-effective, and scalable approach to synthesize Si nanocrystals embedded 2D SiOx nanofoils for next-generation lithium ion batteries through a solution-evaporation-induced interfacial sol-gel reaction of hydrogen silsesquioxane (HSiO1.5, HSQ). The unique nature of the thus-prepared centimeter scale 2D nanofoil with a large surface area enables ultrafast Li+ insertion and extraction, with a reversible capacity of more than 650 mAh g(-1), even at a high current density of 50 C (50 A g(-1)). Moreover, the 2D nanostructured Si/SiOx nanofoils show excellent cycling performance up to 200 cycles and maintain their initial dimensional stability. This superior performance stems from the peculiar nanoarchitecture of 2D Si/SiOx nanofoils, which provides short diffusion paths for lithium ions and abundant free space to effectively accommodate the huge volume changes of Si during cycling. | en_US |
dc.description.sponsorship | This work was in part supported by R&D center for Valuable Recycling (Global-Top Environmental Technology Development Program, No. E617-00222-0602-1). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | THIN-FILM ANODE | en_US |
dc.subject | HIGH-CAPACITY | en_US |
dc.subject | AMORPHOUS-SILICON | en_US |
dc.subject | NATURAL GRAPHITE | en_US |
dc.subject | ION BATTERIES | en_US |
dc.subject | LITHIUM | en_US |
dc.subject | NANOSHEETS | en_US |
dc.subject | LITHIATION | en_US |
dc.subject | ELECTRODE | en_US |
dc.title | Si Nanocrystal-Embedded SiOx nanofoils: Two-Dimensional Nanotechnology-Enabled High Performance Li Storage Materials | en_US |
dc.type | Article | en_US |
dc.relation.volume | 8 | - |
dc.identifier.doi | 10.1038/s41598-018-25159-4 | - |
dc.relation.page | 6904-6911 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | Yoo, Hyundong | - |
dc.contributor.googleauthor | Park, Eunjun | - |
dc.contributor.googleauthor | Bae, Juhye | - |
dc.contributor.googleauthor | Lee, Jaewoo | - |
dc.contributor.googleauthor | Chung, Dong Jae | - |
dc.contributor.googleauthor | Jo, Yong Nam | - |
dc.contributor.googleauthor | Park, Min-Sik | - |
dc.contributor.googleauthor | Kim, Jung Ho | - |
dc.contributor.googleauthor | Dou, Shi Xue | - |
dc.contributor.googleauthor | Kim, Hansu | - |
dc.relation.code | 2018003596 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | khansu | - |
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