실리콘이 코팅된 흑연의 열처리 효과에 따른 전기화학적 특성에 대한 연구

Abstract

Surface modification of the silicon-coated graphite was carried out at 200℃~800℃ 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, SiOx (1<x<2) and SiO2. The components of silicon films at 200℃ of heat treatment brought on the higher fraction of SiO and SiOx than that of SiO2. However, inactive SiO2 fraction increases with increase of the heat treatment temperature. The high content of SiO and SiOx in the silicon film on graphite leads to the higher discharge capacity in our experimental range.