The soft-coated lithium iron phosphate battery can be designed into different sizes according to user requirements. When designing the external dimensions, the corresponding mold must be opened to form the aluminum plastic film. Under normal circumstances, single hole is selected for thin wall and double hole for thick wall, because the deformation of one side is too large to break through the deformation limit of the aluminum-plastic film and cause cracking.

　　Top edge sealing process

　　The top sealing process is the first packaging process for soft-clad lithium iron phosphate batteries. Top sealing and side sealing actually include two processes, top sealing and side sealing. First put the rolled core into the hole, and then fold the packaging film in half along the dotted line. The top seal is a sealed tab, which is made of metal. Some cells, especially thick cells, may deform due to greater internal stress. Therefore, some factories have established a fixture forming process called fixture baking.

　　After cutting the airbag with two sealing rings, cut and fold the edges, that is, cut the edges and the two sealing rings to the appropriate width, and then fold them to ensure that the width of the battery does not exceed the standard. The folded battery can be divided into the capacity of the cabinet, which is actually a capacity test to see if the capacity of the battery reaches the specified minimum. In principle, all batteries must be tested before leaving the factory to ensure that unqualified batteries will not be delivered to customers. However, when the battery output is large, some companies will use statistical probability to divide the output to determine the qualified rate of the batch battery output.

　　In the process of static, chemical, and fixture shaping, after the liquid is injected and completed, the first one is static cells. According to different processes, they will be divided into normal temperature and high temperature static and static. The purpose of static is to allow the injection of electrolyte to fully soak the electrode. The cell can then be transformed.