AN ANODE FOR LITHIUM SECONDARY BATTERY AND A LITHIUM SECONDARY BATTERY INCLUDING THE SAME

摘要

The present invention relates to an anode collection unit and an anode for a lithium secondary battery including a porous anode active material layer formed on at least one side of the anode collection unit. The anode active material layer has an anode active matter with 20-25 μm of a particle size and 3.8-4.3 m2/g of a specific surface. The size of an air gap formed on the anode active material layer is 800-1,200 nm, and a loading amount of the anode active material layer is 0.360-0.450 g/25cm^2. According to the present invention, the size of the air gap in the active material layer is relatively large by applying an anode active matter with a relatively large particle size. Therefore, the present invention improves ion mobility in the anode including the anode active material layer of a high loading amount and improving electronic conductivity in the anode active material layer, thereby improving charge-discharge properties of the lithium secondary battery according to the improvement of the ion mobility into an electrode and the improvement of the electronic conductivity.