Electrode, lithium battery including the same, and method of manufacturing the same

A method of manufacturing an electrode, the method comprising:

• preparing at least two mixtures by dry-mixing an electrode active material, a dry conductive material, and a dry binder;
• providing an electrode current collector having an interlayer on one surface or two surfaces thereof;
• and
• simultaneously or sequentially providing and then pressing the at least two mixtures on one surface or two surfaces of the electrode current collector, to thereby manufacture an electrode having an electrode active material layer on the one or two surfaces of the electrode current collector,
• wherein the electrode active material layer comprises a first electrode active material layer comprising a first electrode active material, and a second electrode active material layer comprising a second electrode active material,
• wherein the first electrode active material layer has, as measured by a surface and interfacial cutting analysis system (SAICAS), a first ratio of change of vertical relative force (FVR) between a first point, which is 5% away from a surface of the first electrode active material layer facing away from the electrode current collector, and a second point, which is 5% away from a surface of the electrode current collector with respect to a total thickness of the first electrode active material layer,
• the second electrode active material layer has, as measured by the SAICAS, a second ratio of change of vertical relative force (FVR) between a third point, which is 5% away from a surface of the second electrode active material layer facing away from the first electrode active material layer, and a fourth point, which is 5% away from the surface of the first electrode active material layer with respect to the total thickness of the second electrode active material layer, and
• the second ratio of change of the second electrode active material layer is 300% or less.