Small Battery Pack Employing PCM on Side Sealing Part

By the present invention using the high-strength laminate sheet, make a side of the battery case, sealing parts themselves in a certain shape, placing the PCM in that the side sealing parts of the inner space as a cell can be built into the electrode assembly, the side sealing parts themselves cell as a structure to decide the external shape of the pack at the same time is used it is used as a mounting space of the PCM, construct a battery pack without using a separate pack sheathing member, and the assembly process is simple, and can be made of a thinner and compact structure, low cost It provides a battery pack. In addition, the battery pack according to the invention is characterized by having a high safety against external impacts, such as because the PCM is spaced apart from the electrode terminals located at a side of the battery cell, dropping of the battery pack.