Phenol resin-derived carbon coating on silicon nanoparticles for high performance lithium-ion battery anode
발표자
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초록
내용
Silicon has been considered as representative anode material for next-generation due to its advantages such as high theoretical capacity and low electrochemical reduction potential. Despite these advantages, huge volume change during the repeating lithiation/delithiation process and low electrical conductivity are obstacles practical applications as the anode material. In this study, forming carbon coating layer on surface of silicon nanoparticles solves the disadvantages of silicon anode. Phenolic resin as raw material is used for carbon coating method by carbonization after surrounding resin coating layer on silicon nanoparticles. Consequently, the electrochemical performance of carbon coated silicon anode materials exhibits high specific capacity, and stable cycling is achieved. The promising properties of carbon-coated silicon nanocomposite provides the strategy for replacing other commercial anodes in Si-based energy storage systems.