▎ 摘　　要

NOVELTY - The secondary battery anode comprises a collecting house (100), an interface layer (200) made of graphene thin film positioned on the current collector, and a negative electrode active material layer (300) having a silicon-based material positioned on the graphene thin film. USE - Secondary battery anode used in secondary battery (claimed). ADVANTAGE - The secondary battery anode reduces interface between the current collector and the negative electrode active material layer for securing structural stability and operational stability of the negative electrode for the secondary battery, and thus provides a secondary battery having improved durability, periodic characteristics and service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing secondary battery anode, which involves forming interfacial layer as a graphene thin film on current collector, and then forming negative electrode active material layer having a silicon-based material on the interface layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the structural changes when charging and discharging occur in the manufactured negative electrode. Collecting house (100) Interface layer (200) Negative electrode active material layer (300)