Aluminum electrolytic capacitor includes anode and cathode foils separated by capacitor paper, impregnated by capacitor electrolyte, which performs as a cathode.
Anode is an aluminum foil plate, the area of which after electrochemical etching by 50-300 times exceeds the area of the plain foil, and on which surface Al2O3 film is electrochemically formed. The oxide film thickness is directly proportional to the constant voltage, applied to the foil during oxide forming. Al2O3 performs as a dielectric in aluminum capacitors
Cathode is an aluminum foil plate, the capacitance of which by 3-10 times exceeds the anode capacitance.
Anode is an aluminum foil plate, the area of which after electrochemical etching by 50-300 times exceeds the area of the plain foil, and on which surface Al2O3 film is electrochemically formed. The oxide film thickness is directly proportional to the constant voltage, applied to the foil during oxide forming. Al2O3 performs as a dielectric in aluminum capacitors
Cathode is an aluminum foil plate, the capacitance of which by 3-10 times exceeds the anode capacitance.