Design of Solid Electrolyte Capacitors

Tantalum powders with specific electrical charge of 18,000 pC/g and average pore size of 1500 nm (left), with 50,000 pC/g and 600 nm (middle), and with 150,000 pC/g and 200 nm (right). 

Principals of the manufacturing process of conducting polymer tantalum capacitors. 

The conducting polymer cathode is made on the dielectric, for example, by chemical in situ polymerization of a monomer with an oxidizer. A conducting carbon and silver paint is applied to the outside of the anode to realize a highly conductive current collector. Finally the capacitor is contacted to a metal frame and encapsulated. 

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