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나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
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Direct realization of complete conversion and agglomeration dynamics of SnO2 nanoparticles in liquid electrolyte

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Title
Direct realization of complete conversion and agglomeration dynamics of SnO2 nanoparticles in liquid electrolyte
Author(s)
Joon Ha Chang; Jun Young Cheong; Jong Min Yuk; Kim C.; Sung Joo Kim; Hyeon Kook Seo; Kim I.-D.; Lee J.Y.
Publication Date
2017-10
Journal
ACS OMEGA, v.2, no.10, pp.6329 - 6336
Publisher
AMER PHYSICAL SOC
Abstract
The conversion reaction is important in lithium-ion batteries because it governs the overall battery performance, such as initial Coulombic efficiency, capacity retention, and rate capability. Here, we have demonstrated in situ observation of the complete conversion reaction and agglomeration of nanoparticles (NPs) upon lithiation by using graphene liquid cell transmission electron microscopy. The observation reveals that the Sn NPs are nucleated from the surface of SnO2, followed by merging with each other. We demonstrate that the agglomeration has a stepwise process, including rotation of a NP, formation of necks, and subsequent merging of individual NPs. © 2017 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/4132
ISSN
2470-1343
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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ACS Omega 2017, 2, 6329−6336.pdfDownload

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