ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING SAME

A manufacturing method according to the present invention is a method for manufacturing an electrode assembly in which a negative electrode, a separator, and a positive electrode are repeatedly stacked, the method comprising: a unit cell manufacturing step (S10) of manufacturing a unit cell having a predetermined stack structure of the negative electrode, the separator, and the positive electrode, wherein ends of the separators are bonded to each other to form a bonding portion; a film inserting step (S20) of inserting a film into a die; a unit cell stacking step (S30) of stacking the unit cell into the die; and a thermal fusing step (S40) of applying heat and a pressure to thermally fuse the film to the bonding portion of the stacked unit cell within the die. [0002] An electrode assembly according to the present invention is an electrode assembly in which a negative electrode, a separator, and a positive electrode are repeatedly stacked, the electrode assembly comprising a film disposed to cover one of side surfaces defined by stacking the negative electrode, the separator, and the positive electrode, wherein the film is thermally fused to the side surface defined by stacking the negative electrode, the separator, and the positive electrode.