POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE POSITIVE ELECTRODE

The present invention relates to a positive electrode including a positive electrode active material layer formed on a positive electrode collector, wherein the positive electrode active material layer has a two-layer structure including a first positive electrode active material layer, which is formed on the positive electrode collector and includes a first positive electrode active material represented by Formula 1 and a second positive electrode active material represented by Formula 2, and a second positive electrode active material layer which is formed on the first positive electrode active material layer and includes a third positive electrode active material represented by Formula 1, wherein an average particle diameter D of the third positive electrode active material is the same or different from an average particle diameter D of the first positive electrode active material, and a lithium secondary battery including the same.