THIN-FILM TYPE SUPER-CAPACITOR DEVICE WITH ENHANCED DURABILITY AND MANUFACTURING METHOD FOR THE DEVICE

摘要

The present invention relates to a thin film type super capacitor element whose durability against electrolyte is greatly improved. The capacitor element according to the present invention comprises: two sheets of packaging films having accommodation spaces therein; a separation film which is interposed between the packaging films to divide the accommodation space into two parts; a collector member which is positioned in each of the accommodation spaces divided by the separation film, wherein an active material layer impregnated with an electrolyte is formed on each of surfaces of the collector members; and a lead line which electrically couples the collector members with the outside. The collector members are arranged such that the active materials face each other by interposing the separation film. The packaging film is attached by an adhesive to surround the accommodation space such that airtightness of the electrolyte is maintained. A portion of the packaging film where the lead line passes is attached by using an attaching portion for a lead line different from the adhesive, and the attaching portion for a lead line is made of a paraffin material. According to the present invention, since the adhesive made of the paraffin material is used at a position where the lead line passes, the degradation of the durability of the thin film type super capacitor against the electrolyte is prevented, even when highly corrosive electrolyte such as KOH is used.