볼 밀링 방법으로 제조된 리튬이차전지 음극용 Si/Carbon 복합물질의 전기화학적 특성 평가

Electrochemical Characteristics of Si/Carbon Composite Anode Material for Lithium Rechargeable Batteries Fabricated by Ball Milling Method

Recently, Si/Carbon composite have been suggested as a promising anode material for lithium batteries. In this study, nano-Si/graphite composites are fabricated by a ball milling method in Ar atmosphere. Every sample was fabricated by controlling milling time, respectively. Their electrochemical characteristics as anode materials for lithium secondary batteries were investigated. Si particles are uniformly distributed throughout the nano-Si/graphite composite fabricated by ball milling. The fabricated nano-Si/graphite composite electrodes show improved cycle performance, but a large initial irreversible capacity.