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Received December 17, 2010
Accepted April 14, 2011
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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The effect of graphene nanosheets as an additive for anode materials in lithium ion batteries
School of Chemical Engineering & Bioengineering, University of Ulsan, Daehak-ro 102, Nam-gu, Ulsan 680-749, Korea 1KCC Central Research Institute, 83 Mabook-dong, Giheung-gu, Yongin, Gyeonggi-do 446-912, Korea 2Research Center, N-Baro Tech Co., 974-1 Goyeon-ri, Ungchon-myon, Ulju-gun, Ulsan 689-871, Korea
esoh1@ulsan.ac.kr
Korean Journal of Chemical Engineering, November 2011, 28(11), 2202-2205(4), 10.1007/s11814-011-0102-9
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Abstract
A small amount of graphene nanosheets was added to commercial graphite as an anode active material in lithium ion batteries and its effects were examined through a variety of physical and electrochemical characterization techniques: FE-SEM, XRD, Raman, BET, and EIS. Compared to a commercial graphite electrode, a composite electrode containing 1 or 5 wt% graphene nanosheets showed higher reversible capacity and enhanced cyclability. This was attributed to the large surface area and low charge transfer resistance of the graphene nanosheets.
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