Electrical capacitor

An electrical capacitor, comprising:

• a consolidated stack;
• dielectric layers of plastic film laminated to one another to form said consolidated stack;
• a metal coating layer on each of said dielectric layers, said metal layer being a regenerably thin layer of valve metal;
• first and second projections formed by an incision in the direction of the thickness of said consolidated stack, said incision being substantially in the center of one narrow side of said consolidated stack;
• said metal layers on alternate ones of said dielectric layers extending to the ends of alternate ones of said first and second projections, said metal layers covering a surface of each of said dielectric layers substantially to opposing long side edges corresponding to long sides of said consolidated stack, said metal layers defining metal-free strips on alternating ones of said dielectric layers to form remaining metal strips on said first and second projections;
• said incision having a depth at least greater than the width of said remaining metal strips;
• metal contacts formed on the end surfaces of said first and second projections by metal spraying, said metal contacts contacting said metal layers to connect said metal layers to one another and form antipolar coatings of said capacitor;
• at least one cover layer on at least one of an upper and a lower side of said consolidated stack, said at least one cover layer being a capacitively ineffective cover layer of the same plastic film as said dielectric layers, said at least one cover layer being provided with a metal layer that defines metal-free insulating strips on both of said first and second projections to separate said metal layer from said metal contacts.