Secondary battery comprising electrodes having multi layered active layers

PURPOSE: An electrode is provided to uniformly distribute binder, etc in an electrode active material layer, which is coated on an electrode current collector without separation or exfoliation and to improve resistance-increase of an electrode while preventing increase of volume and weight of a secondary battery. CONSTITUTION: An electrode comprises a multi-layered electrode active material layer. The loading amounts of each layers in the multi-layered electrode active material layer are different each other. A manufacturing method of the multi-layered electrode active material layer comprises: a step of manufacturing an electrode active material; a step of coating a designed loading amount of electrode active material on a current collector; a step of vacuum-drying the electrode active material coated on the electrode current collector.