| 초록 |
In this work, we have prepared the pitch-coated silicon composites with acid treatment for improving electrochemical properties. The silicon was treated by sulfuric acid, hydrogen peroxide, and sodium hydroxide. The acid and base values were determined by Boehm's titration. The prepared composites were assembles as half cell anodes for lithium ion battery. Electrochemical properties, such as the initial efficiency, the initial discharge capacity and cycle life, were investigated. The morphologies and structures of the composites were observed using a scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. |
