리튬이온 전지용 카본(MCMB) 부극재료의 전지반응 특성 |
박영태, 류호진1, 김정식 |
서울시립대학교 재료공학과 1한국화학연구소 |
A Study on the Characteristics of Cell Reaction for the MCMB Carbon as Anode in Li-ion Batteries |
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ABSTRACT |
Graphite and carbonaceous materials showed an excellent capability as a negative electrode in Li-ion batteries because Li-ion can be intercalated and de-intercalated reversibly within most carbonaceous materials of layered structure. Also, the electrochemical potential of Li-intercalated carbon anode is almost identical with that of Li metal. In the present study, mesocarbon microbeads(MCMB) were used as anode electrode and its properties of charge/discharge and interfacial reaction with electrolyte were studied by Potentiostat/Galvanostat test, FT-IR analysis, XRD and SEM. The passivation film of solid-state was formed as the interface between electrode and electrolyte as the cell reaction began and, once formed, became thicker with repeated charge/discharge process. Also, the relationship between the passivation film formed at the electrode interface and storage capacity was discussed. |
Key words:
Li-ion battery, MCMB, Carbon anode, Electrochemical property |
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