COFFEE GROUND COMPOSITION AND SECONDARY BATTERY ANODE MATERIAL COMPRISING SAME

The present disclosure is to provide a coffee ground composition which can suppress the phenomenon of silicon crushing and peeling due to volume expansion during charging and discharging, and has improved charging and discharging characteristics such as initial efficiency, capacity, and lifespan characteristics, and a secondary battery anode material comprising the same.The present disclosure can contribute to the protection of the natural environment through the preparation of a lithium secondary battery high-capacity silicon anode active material prepared using coffee grounds, an environmental pollutant, and can lower a lithium secondary battery anode material preparation cost with the high-capacity silicon anode active material using the coffee grounds.In addition, the present disclosure not only can suppress the phenomenon of silicon crushing and peeling due to volume expansion during charging and discharging, but also can improve charging and discharging characteristics such as initial efficiency, capacity, and lifespan characteristics.