A cap assembly including a cap plate having a port aperture, an electrode port inserted into the port aperture, and an insulating member formed between the cap plate and the electrode port to insulate the cap plate and the electrode port and to tightly bind the electrode port to the cap plate, wherein the insulating member, the cap plate, and the electrode port form a single integrated body. The pouch may be produced without any fitment or opening device and completely sealed after the filling. The first resistance enables a metal shell margin to partially bend under a flat back that is placed on a first surface of the crimp die. This is achieved by interconnecting a number of master nodes over the insecure communication network. When the zipper hand is in a buckled state, the puller can be buckled and fixed on the body, and do not worry about the puller is raised up, so as to maintain the zipper hand in the buckled state, for avoiding the zipper hand being loosed and occurring an unexpected move.