ANODE INCLUDING GRAPHITE AND SILICON-BASED MATERIAL HAVING DIFFERENT DIAMETERS AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

The present disclosure relates to an anode for a lithium secondary battery, wherein an anode material layer is formed on at least one surface of an anode current collector, and the anode material layer includes large-particle graphite, a small-particle silicon-based material, and fine-particle graphite, and satisfies the following conditions 1 to 3: [Condition 1] Average diameter D50 of the large-particle graphite (D): 1 to 50 µm [Condition 2] Average diameter D50 of the small-particle silicon-based material (D):0.155D to 0.414D [Condition 3] Average diameter D50 of the fine-particle graphite (D):0.155D to 0.414D, or 0.155D to 0.414D.