| abstract |
The present invention relates to a secondary battery having a structure in which an electrode assembly is housed in a battery case together with an electrolytic material, wherein the battery case has a space for accommodating the electrode assembly, and the battery case is a secondary battery made of a thermoplastic resin It is about batteries. In the case of using a secondary battery including a battery case formed of a thermoplastic resin capable of accommodating an electrode assembly and an electrolytic material and capable of injection molding, the size of the injection mold is determined by the thickness of the electrode assembly It is possible to solve the problem of low moldability of the laminate sheet including the conventional metal layer. In addition, since the molding process of the laminate sheet and the sealing process of the battery case using the pressing member can be omitted, which is inevitably required in the case of using the conventional laminate sheet, productivity can be improved by simplifying the manufacturing process. |