Negative Electrode And Lithium Secondary Battery

Abstract: The present invention relates to a negative electrode for a secondary battery and a secondary battery comprising same, the negative electrode comprising: a current collector and a negative electrode active material layer provided on at least one surface of the current collector, wherein the negative electrode active material layer includes a first region corresponding to 50% of the total thickness of the negative electrode active material layer from a surface facing the current collector, and a second region corresponding to 50% of the total thickness of the negative electrode active material layer from a surface opposite to the surface facing the current collector. The negative electrode active material layer includes two or more kinds of negative electrode active materials that are different from each other in D50 and satisfies formulas 1 and 2.

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