The claimed invention is directed to an improved secondary battery having
a substantially uniform thickness. In one embodiment, a can type lithium
on secondary battery is formed to include a structure that enables the
battery to have a substantially uniform thickness even when wrapped with
a label. Illustratively, the structure may include a label overlap
receiving section formed on a portion of either an upper or lower cover
of the battery. The label overlap receiving section ensures that a
certain portion of a label overlap area is not thicker than a thickness
of an area of the label. In this manner, a substantially uniform battery
thickness is provided.