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http://dx.doi.org/10.12925/jkocs.2015.32.3.480

Electrochemical characteristics of active carbon prepared by chemical activation for anode of lithium ion battery  

Lee, Ho-Yong (Department of Chemical Engineering, Chungbuk National University)
Kim, Tae-Yeong (Department of Environmental Engineering, Chungbuk Provincial College)
Lee, Jong-Dae (Department of Chemical Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.32, no.3, 2015 , pp. 480-487 More about this Journal
Abstract
In this study, several kinds of active carbons with high specific surface area and micro pore structure were prepared from the coconut shell charcoal using chemical activation method. The physical property of prepared active carbon was investigated by experimental variables such as activating chemical agents to char coal ratio, flow rate of inert gas and temperature. It was shown that chemical activation with KOH and NaOH was successfully able to make active carbons with high surface area of $1900{\sim}2500m^2/g$ and mean pore size of 1.85~2.32 nm. The coin cell using water-based binder in the electrolyte of LiPF6 dissolved in mixed organic solvents (EC:DMC:EMC=1:1:1 vol%) showed better capacity than that of oil-based binder. Also, it was found that the coin cell of water-based binder shows an improved cycling performance and coulombic efficiency.
Keywords
Activated Carbon; Anode material; KOH; NaOH; Lithium ion battery;
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Times Cited By KSCI : 2  (Citation Analysis)
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