FILM CAPACITOR Russian patent published in 2020 - IPC H01G11/36 H01G11/56 H01M10/561 H01G4/33 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, and more specifically to laminated film capacitors, and can be used in production of electrochemical supercapacitors with capacity higher than 5 V. Capacitor contains two electrodes based on carbon material and combinations of metals separated by an ion-conducting separator, which form a cell of a capacitor, placed in housing. Current leads made of metal which is inert to the electrolyte are connected to the cell electrodes. Separator made of nonwoven fibrous material, the fibers which is applied by airless spraying pressurized carbon mass suspension formed from carbon nanotubes dispersed in a solid polymer electrolyte in amount of 2–4 mg/cm², to form a coating on a fibrous nonwoven material having the developed surface area of 1,900–2,100 m²/g. Suspension of carbon mass is applied on non-woven material by airless spraying at pressure of not less than 3 atm, at temperature of 60–80 °C. Note here that non-woven fibrous material has thickness of 23–31 mcm and fiber diameter makes 150–200 nm. Vacuum impregnation of cell with electrolyte is carried out in argon medium.

EFFECT: higher reliability of condenser at temperatures of up to 350 °C is technical result of invention.

4 cl, 2 dwg