ELECTRODE STACK OF ENHANCED RATE PERFORMANCE AND BATTERY COMPRISING THE SAME

摘要

The present invention relates to an electrode stack which is characterized by comprising one or more first separator interposed between electrodes having opposite polarities, and including one surface or both surfaces laminated on the electrode; one or more second separator interposed between electrodes having opposite polarities, and including one surface or both surfaces contacting with the electrode in non-contacting state; one or more first electrode including a first electrode material layer of high loading formed on a current current collector, and arranged on the outer side of the electrode current collector based on the second separator; and one or more second electrode including a second electrode material layer of relatively low loading compared with the first electrode material layer, and arranged on the inner side of the electrode current collector based on the second separator, and to a secondary battery comprising the same.