A battery pack comprising: a battery cell provided with electrode terminals formed on one surface thereof including a sealing surplus portion; a release paper cover including a label portion displaying information; and a protection circuit module assembly connected to the battery cell through the electrode terminals, wherein the protection circuit module assembly includes: a protection circuit substrate electrically connected to the electrode terminals; an external input/output terminal formed on the protection circuit substrate; and an insulation member positioned between the protection circuit substrate and the battery cell, wherein the release paper cover is formed of a release paper, except for the label portion, wherein the release paper included in the release paper cover encloses the protection circuit module assembly seated on the sealing surplus portion, wherein the label portion is attached onto the surface of the battery cell, wherein the release paper cover further includes: a rear cover connected to the label portion and positioned on a rear surface of the protection circuit module assembly; a top cover connected to the rear cover and positioned on a top surface of the protection circuit module assembly; a front cover connected to the top cover and positioned on a front surface of the protection circuit module assembly; and side covers connected to the rear cover and positioned on side surfaces of the protection circuit module assembly, respectively. wherein the label portion and the rear cover are distinguished from each other by the perforation line, wherein the rear cover, the top cover, the front cover, and the side covers are formed of the release paper, and wherein the side covers further include side cover extension portions, and the side cover extension portions are attached to the front cover, respectively. a battery cell provided with electrode terminals formed on one surface thereof including a sealing surplus portion; a release paper cover including a label portion displaying information; and a protection circuit module assembly connected to the battery cell through the electrode terminals, wherein the protection circuit module assembly includes: a protection circuit substrate electrically connected to the electrode terminals; an external input/output terminal formed on the protection circuit substrate; and an insulation member positioned between the protection circuit substrate and the battery cell, a protection circuit substrate electrically connected to the electrode terminals; an external input/output terminal formed on the protection circuit substrate; and an insulation member positioned between the protection circuit substrate and the battery cell, wherein the release paper cover is formed of a release paper, except for the label portion, wherein the release paper included in the release paper cover encloses the protection circuit module assembly seated on the sealing surplus portion, wherein the label portion is attached onto the surface of the battery cell, wherein the release paper cover further includes: a rear cover connected to the label portion and positioned on a rear surface of the protection circuit module assembly; a top cover connected to the rear cover and positioned on a top surface of the protection circuit module assembly; a front cover connected to the top cover and positioned on a front surface of the protection circuit module assembly; and side covers connected to the rear cover and positioned on side surfaces of the protection circuit module assembly, respectively. a rear cover connected to the label portion and positioned on a rear surface of the protection circuit module assembly; a top cover connected to the rear cover and positioned on a top surface of the protection circuit module assembly; a front cover connected to the top cover and positioned on a front surface of the protection circuit module assembly; and side covers connected to the rear cover and positioned on side surfaces of the protection circuit module assembly, respectively. wherein the label portion and the rear cover are distinguished from each other by the perforation line, wherein the rear cover, the top cover, the front cover, and the side covers are formed of the release paper, and wherein the side covers further include side cover extension portions, and the side cover extension portions are attached to the front cover, respectively.