Korean Journal of Materials Research, Vol.15, No.1, 66-72, January, 2005
실리콘이 코팅된 흑연의 열처리 효과에 따른 전기화학적 특성에 대한 연구
A Study on Effect of Heat Treatment on Electrochemical Characteristics of Silicon-coated Graphite
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Surface modification of the silicon-coated graphite was carried out at 200 ? C\~800 ? C under hydrogen atmosphere. The silicon-coated graphites were prepared by fluidized-bed spray coating method. The components of silicon films prepared on the graphite consist of SiO, SiO x (1.Thecomponentsofsiliconfilmsat 200^{\circ}CofheattreatmentbroughtonthehigherfractionofSiOand SiO_xthanthatof SiO_2.However,inactive SiO_2fractionincreaseswithincreaseoftheheattreatmenttemperature.ThehighcontentofSiOand SiO_x$ in the silicon film on graphite leads to the higher discharge capacity in our experimental range.
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