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A carbon nanotubes-silicon nanoparticles network for high performance lithium rechargeable battery anodes

Cited 6 time in Web of Science Cited 0 time in Scopus
Authors
Kim, Byung Gon; Shin, Weon Ho; Lim, Soo Yeon; Kong, Byung Seon; Choi, Jang Wook
Issue Date
2012-09
Citation
Journal of Electrochemical Science and Technology, Vol.3 No.3, pp.116-122
Keywords
SiliconCarbon nanotubeChemical vapor depositionLithium ion batteryAnode
Abstract
As an effort to address the chronic capacity fading of Si anodes and thus achieve their robust cycling performance, herein, we develop a unique electrode in which silicon nanoparticles are embedded in the carbon nanotubes network. Utilizing robust contacts between silicon nanoparticles and carbon nanotubes, the composite electrodes exhibit excellent electrochemical performance : 95.5% capacity retention after 140 cycles as well as rate capability such that at the C-rate increase from 0.1C to 1C to 10C, the specific capacities of 850, 698, and 312 mAh/g are obtained, respectively. The present investigation suggests a useful design principle for silicon as well as other high capacity alloying electrodes that undergo large volume expansions during battery operations.
ISSN
2093-8551
URI
http://hdl.handle.net/10371/164619
DOI
https://doi.org/10.5229/JECST.2012.3.3.116
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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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