| abstract |
A pair of polarizable electrodes opposed to each other with a separator interposed therebetween, an electrolyte solution impregnated in the pair of polarizable electrodes and the separator, and an exterior housing the separator, the pair of polarizable electrodes, and the electrolyte solution A cover and an exterior case, and a gasket disposed between an outer periphery of the exterior cover and an inner periphery of the exterior case, and by curving the opening tip of the exterior case inward, Provided is an electric double layer capacitor that seals a storage space constituted by an outer lid and has a large capacitance and excellent productivity. The thickness of the exterior lid is greater than the thickness of the exterior case, and the opening end of the exterior lid bites into the gasket toward the end surface of the exterior case. [Selection] Figure 1 |