HIGH-SPECIFIC-ENERGY CAPACITOR Russian patent published in 1997 - IPC

FIELD: manufacture of double-layer capacitors of high operating voltage and specific energy. SUBSTANCE: capacitor has polarized positive and negative electrodes with extended surface, for example, of activated carbon material, separator, and electrolyte. Positive and negative electrodes have different capacitance; electrode of lower permissible charge voltage has higher capacitance. Capacitance ratio of electrodes is inversely proportional to ratio of permissible charge voltages of electrodes. Electrodes may be made of same material and their capacitance ratio is ensured by difference in their mass. EFFECT: improved specific electrical characteristics of capacitor. 3 cl, 2 dwg