POUCH TYPE SECONDARY BATTERY AND DEVICE COMPRISING THE SAME

摘要

The present invention relates to providing an electrode assembly having high figuarbility toward the thickness direction and, more specifically, to an electrode assembly having laminated anode, cathode alternatingly laminated while having a separation film as a boundary. The electrode assembly has an N number of laminated electrode bodies, where N is a natural number above two, laminated while having separation films having a uniform surface area. Between the neighboring electrodes bodies, the surface areas are different, and a first electrode body has a unit cell having an odd number of laminated electrodes. The electrode bodies laminated on top of the first electrode body has a unit cell having an even number of laminated electrodes.