Patent ID: 6400554
Filing Date: 2002-06-04
Classification: H01G

Abstract:
An anode body for an electrolytic capacitor, the anode body comprising:a laminate of a plurality of rectangular sheets of anode valve metal foil, each rectangular sheet having four lateral edges, a length and a width, each rectangular sheet forming a respective anode layer, each rectangular sheet having a dielectric layer of metal oxide film anodized on a roughened surface thereof, the laminate having a top face, a bottom face and four sides defined by the lateral edges of the plurality of rectangular sheets of anode valve metal foil; and a fixing frame comprising metal or insulating sheet having substantially the same width as the width of each of the rectangular sheets of anode valve metal foil, wherein the fixing frame cramps the laminate in a laminating direction, fixes the plurality of rectangular sheets together, and electrically connects with the anode layers, wherein the fixing frame covers the top face of the laminate, the bottom face of the laminate and at least one of the four sides of the laminate, wherein the fixing frame does not cover all of the four sides of the laminate, and wherein uncovered edges of the sheets of anode valve metal foil of the sides of the laminate that are uncovered by the fixing frame aer exposed so as to permit a cathode conductive polymer to be impregnated into the sheets of anode valve metal foil, and so as to permit the cathode conductive polymer to contact the dielectric layers on the rectangular sheets.