A rechargeable battery having an electrode assembly formed by depositing/spiral-winding an positive electrode and a negative electrode on respective surfaces of a separator; a can including a pipe having a side seam portion to enclose the electrode assembly and a bottom plate bonded to a first opening of the pipe by a bottom seam portion to close and seal the first opening and facing an end portion of the electrode assembly; and a cap assembly bonded to a second opening of the pipe formed at the other side of the bottom plate to close and seal the second opening.