likewise the second un coated portions 222 and the second electrode plate 220 may be integrally formed and thus the second electrode tab group 240 and the second electrode plate 220 may be integrally formed alternatively as described above the first un coated portions 212 and the first electrode plate 210 may be separately formed and then the first un coated portions 212 may be connected to the first electrode plate 210 the second un coated portions 222 and the second electrode plate 220 may be separately formed and then the second un coated portions 222 may be connected to the second electrode plate 220 fig5 is a schematic perspective view of an electrode assembly 300 for a rechargeable battery manufactured by using a method according to another embodiment of the present invention referring to fig5 the electrode assembly 300 can be manufactured by winding in such a manner that the electrode assembly 300 has a cylindrical shape the electrode assembly 300 can include a separator 305 a first electrode plate 310 a second electrode plate 320 a first electrode tab group 330 and a second electrode tab group 340 for example the electrode assembly 300 may be formed by winding the first electrode plate 310 the second electrode plate 320 and the separator 305 and the separator 305 is interposed between the first electrode plate 310 and the second electrode plate 320 in such a manner that the first electrode plate 310 is insulated from.