Lithium polymer secondary battery

PURPOSE: A lithium polymer secondary battery is provided to improve the capacity of a battery since an unnecessary space generated at a sealing part of an external case is excluded and to improve a sealing state since an electrode terminal and a cover are welded or sealed by a sealing solution. CONSTITUTION: A lithium polymer secondary battery(100) comprises: an electrode assembly(110) consisting of a first electrode(111), a second electrode(112), and a separator(113) interposed between the first and second electrodes; an external material(120) covering the outside of the electrode assembly; and first and second covers(130,140) for sealing the external material. The first terminal(116) electrically connected to the first electrode and the second terminal(117) electrically connected to the second electrod are drawn to the outside through a first cover or a second cover.