SOLID-STATE MULTI-COMPONENT OXIDE-BASED SUPERCAPACITOR Russian patent published in 2014 - IPC H01G9/00 H01G11/56 

FIELD: electricity.

SUBSTANCE: present invention relates to electrical engineering and specifically to solid-state multi-component oxide-based supercapacitors. The technical result of the invention is higher capacitance and density of stored energy and reduced leakage current of the capacitor. The supercapacitor has two electrodes and a dielectric layer in between, wherein the lower electrode is made of material with a larger specific surface area, the dielectric layer is conformally and uniformly placed on the lower electrode, the upper electrode is conformally and uniformly placed on the dielectric layer and is made of zinc oxide doped with aluminium, wherein the dielectric layer is made of a multi-component oxide containing a mixture of at least two oxides selected from TiO₂, HfO₃, ZrO₂, Al₂O₃, Ta₂O₅, Nb₂O₅, Y₂O₃ and lanthanide oxides, and is such that the relative permittivity of the active dielectric layer is in the range of 10-30.

EFFECT: disclosed solid-state capacitor can be used in electric cars where they can be mounted on the internal surface of the car body and can be an ideal power source in emergency situations.

2 cl, 3 dwg, 5 ex