Multi layered electrode and method of manufacturing the same

A lithium secondary battery comprising a cathode and an anode as electrodes, wherein each of the electrodes comprises an electrode mixture layer A close to the electrode current collector and an electrode mixture layer B distant from the electrode current collector, wherein the electrode mixture layer A comprises a mixture of two active materials having different average diameters and the electrode mixture layer B comprises active materials having the same average diameters,

• wherein a ratio of the electrode mixture layer A to the electrode mixture layer B is 1:9 to 3:7, based on a total thickness of the electrode mixture layers,
• wherein a thickness of the electrode mixture layer A is 5 to 35 μm,
• wherein the cathode comprises a spinel-structure lithium nickel manganese composite oxide (LNMO) represented by Formula 2 below as cathode active materials,
• wherein the anode comprises a lithium titanium oxide (LTO) represented by Formula 4 below as anode active materials:
• LixNiyMn2−yO4 (2)
• wherein 0.9≤x≤1.2, and 0.4≤y≤0.5
• LiaTibO4 (4)
• wherein 0.5≤a≤3 and 1≤b≤2.5.