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Electrochemical Dilatometry Study on Si-Embedded Carbon Nanotube Powder Electrodes

Cited 41 time in Web of Science Cited 40 time in Scopus
Authors
Park, Sangjin; Kim, Taeahn; Oh, Seung M.
Issue Date
2007-03-26
Publisher
Electrochemical Society
Citation
Electrochem. Solid-State Lett., 10, A142 (2007)
Keywords
carbon nanotubessiliconelectrochemical electrodesswellingnanotechnology
Abstract
Si-embedded carbon nanotube (Si–C/NT) powders were prepared by dispersing carbon nanotubes (CNTs) and Si in the tetrahydrofuran
solution containing poly(vinyl chloride) (PVC) as a dispersion agent, and then carbonizing the PVC. A better cycle
performance was observed with the Si–C/NT containing larger void volume. The origin of this feature was addressed by an
electrochemical dilatometry study, where it was found that the electrode swelling becomes less significant when the Si–C/NT
possesses a larger void space. It is believed that the void space plays a buffering role against the volume expansion of Si,
alleviating the breakdown of electrode integrity.
ISSN
1099-0062
Language
English
URI
http://hdl.handle.net/10371/5918
DOI
https://doi.org/10.1149/1.2717365
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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