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http://dx.doi.org/10.9713/kcer.2018.56.3.303

Synthesis and Electrochemical Characteristics of Silicon/Carbon Anode Composite with Binders and Additives  

Park, Ji Yong (Department of Chemical Engineering, Chungbuk national University)
Lee, Jong Dae (Department of Chemical Engineering, Chungbuk national University)
Publication Information
Korean Chemical Engineering Research / v.56, no.3, 2018 , pp. 303-308 More about this Journal
Abstract
Silicon/Carbon (Si/C) composite as anode materials for lithium-ion batteries was synthesized to find the effect of binders and an electrolyte additive. Si/C composites were prepared by two step method, including magnesiothermic reduction of SBA-15 (Santa Barbara Amorphous material No. 15) and carbonization of phenol resin. The electrochemical performances of Si/C composites were investigated by charge/discharge, cyclic voltammetry and impedance tests. The anode electrode of Si/C composite with PAA binder appeared better capacity (1,899 mAh/g) and the capacity retention ratio (92%) than that of other composition coin cells during 40 cycles. Then, Vinylene carbonate (VC) was tested as an electrolyte additive. The influence of this additive on the behavior of Si/C anodes was very positive (3,049 mAh/g), since the VC additive is formed passivation films on Si/C surfaces and suppresses irreversible changes.
Keywords
Silicon; Binder; Additive; Anode material; Lithium ion battery;
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Times Cited By KSCI : 3  (Citation Analysis)
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