Patent ID: 7768231

Claim:
A battery pack comprising: one rectangular battery cell comprising an electrode assembly, which consists of cathodes, anodes, and separators, mounted therein together with an electrolyte in a sealed state; a lower case comprising an inner space for receiving the battery cell; an upper case coupled to the lower case, in which the battery cell is received, for sealing the battery cell, wherein at least one, which is selected from an upper surface of the upper case and a bottom surface of the lower case, is wholly opened, the upper and lower cases are provided with side walls, each of which has a predetermined thickness, by which coupling regions of the upper and lower cases are located at the sides of the battery cell, and a film-shaped label is applied to the open upper surface of the upper case or the open bottom surface of the lower case, a thickness of the film-shaped label is 0.1 to 0.2 millimeters and is less than the predetermined thickness of the side walls of the upper and lower cases, and the upper case or the lower case, having the film-shaped label, is manufactured by inserting the film-shaped label into a predetermined mold and forming an upper case frame or a lower case frame using an insert injection molding method.