Capacitor unit and stacked solid electrolytic capacitor having the same

A stacked solid-state electrolytic capacitor, comprising:

• a plurality of capacitor units stacked onto each other, wherein each capacitor unit has an anode portion, a cathode portion, and an insulating portion, wherein the insulating portion is provided for in a form of a headband to partially cover the surface of the anode portion, while the cathode portion partially covers the anode portion and is located behind the insulating portion, wherein the cathode portion at has at least one conductive layer, wherein the adjacent capacitor units have an adhesive layer therebetween, wherein at least one of the conductive layer and the adhesive layer is made of a conductive polymer having copper, copper alloy, or a mixture of the copper and copper alloy;
• a positive lead frame electrically connected to the anode portion of each of the capacitor units;
• a negative lead frame electrically connected to the cathode portion of each of the capacitor units;
• and
• a package unit covering the capacitor units and partially covering the positive and the negative lead frames.