화학공학소재연구정보센터
Applied Chemistry, Vol.5, No.1, 56-59, May, 2001
주석에 의해 표면개질된 리튬이차전지용 흑연 재료의 전기화학적 특성
The Electrochemical characteristics of surface modified Graphite Materials by Tin for Lithium Secondary Batteries
Carbon and graphite have been extensively studied as the anode materials in Li-ion batteries for attaining high capacity, long cycle life and safety. Despite the commonality of carbon based anodes in lithium ion batteries, there is no lack of effect in the continuing improvements of the anode materials. In this aspect some binary or tertiary lithium alloys are received revived interest, among them the lithium-tin system appears to be the most promising. The tin system is used as a modifier, rather than major capacity bearing component, to increase the anode capacity by most graphitic materials. In this study, we have investigated the effect of carbon materials(natural graphite, graphite fibers) with addition of Sn on charge-discharge performance as an anode for a lithium-ion secondary battery. In the case of natural graphite, the electrode which coated with tin oxide had the higher capacity than that of raw materials.