A secondary battery, comprising: a bare cell including a first surface having an electrode terminal and side surfaces (120f, 120s) perpendicular to the first surface; and a first coverlay and a second coverlay electrically connected to the bare cell, the side surfaces including a pair of first side surfaces that are in parallel with each other, and a pair of second side surfaces connecting the pair of first side surfaces to each other, the first coverlay including a first region adjacent the first surface, and a second region adjacent one of the pair of the second side surfaces, the second coverlay including a third region overlapping the first region, and a fourth region overlapping the second region; wherein the bare cell includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a can accommodating the electrode assembly and having an opening in a side thereof; and a cap plate sealing the opening of the can, wherein the cap plate forms the first surface, and wherein the first region is electrically connected to the cap plate, and the third region is electrically connected to the electrode terminal; wherein a first terminal protrudes from a portion of the second region, a second terminal protrudes from the fourth region and is separated from the first terminal; wherein an extension portion of the second coverlay is arranged to extend from the fourth region between the first terminal and the second terminal, wherein a fixing tape is attached to the extension portion, and the fixing tape extends to the pair of first side surfaces. a bare cell including a first surface having an electrode terminal and side surfaces (120f, 120s) perpendicular to the first surface; and a first coverlay and a second coverlay electrically connected to the bare cell, the side surfaces including a pair of first side surfaces that are in parallel with each other, and a pair of second side surfaces connecting the pair of first side surfaces to each other, the first coverlay including a first region adjacent the first surface, and a second region adjacent one of the pair of the second side surfaces, the second coverlay including a third region overlapping the first region, and a fourth region overlapping the second region; wherein the bare cell includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a can accommodating the electrode assembly and having an opening in a side thereof; and a cap plate sealing the opening of the can, an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a can accommodating the electrode assembly and having an opening in a side thereof; and a cap plate sealing the opening of the can, wherein the cap plate forms the first surface, and wherein the first region is electrically connected to the cap plate, and the third region is electrically connected to the electrode terminal; wherein a first terminal protrudes from a portion of the second region, a second terminal protrudes from the fourth region and is separated from the first terminal; wherein an extension portion of the second coverlay is arranged to extend from the fourth region between the first terminal and the second terminal, wherein a fixing tape is attached to the extension portion, and the fixing tape extends to the pair of first side surfaces.