Solid electrolytic capacitor manufacturing apparatus, solid electrolytic capacitor manufacturing method and solid electrolytic capacitor

Abstract

Provided is a solid electrolytic capacitor manufacturing apparatus which stably forms a high-quality solid electrolytic layer and is excellent in productivity and workability. The manufacturing apparatus is provided with a bonding section for bonding an anode electrode to an anode body; a supply section for supplying a polymerization solution in a polymerization tank with the anode body; and cathode electrodes arranged on the both sides in the width direction of the anode body in the polymerization solution in a noncontact status. Electrolytic polymerization is performed by applying a voltageto the anode electrode and the cathode electrode in the polymerization solution from a power supply, and a solid electrolytic layer composed of conductive polymer is formed. Thus, the conductive particles are prevented from being generated and adhered on a polymerization tank inner wall and a change of the effective area of the cathode electrode is suppressed, and a solid electrolytic layer is uniformly formed.

Description

technical field [0001] The present invention relates to an apparatus for manufacturing a solid electrolytic capacitor that is most suitable for forming a solid electrolyte by electrolytic polymerization, among capacitors used in various electronic devices, especially when a solid electrolytic capacitor using a conductive polymer is used for the solid electrolyte , A manufacturing method of a solid electrolytic capacitor and a solid electrolytic capacitor. Background technique [0002] In recent years, with the increase in frequency of electronic equipment, as capacitors used in these electronic equipment, in order to achieve low impedance in the high-frequency region, it has been proposed to use a conductive polymer with high conductivity obtained by electrolytic polymerization as a solid Electrolytic solid electrolytic capacitors, and made a variety of research. [0003] Figure 16 It is a front cross-sectional view showing the structure of a solid electrolytic capacitor m...

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Problems solved by technology

However, at this time Figure 19 As shown, the solid electrolyte film will be squeezed into the base material of the anode electrode 24a, that is, the aluminum foil, as the power supply pin 25c invades, resulting in a state where the solid electrolyte film is interposed between the power supply pin 25c and the aluminum foil, resulting in Parts where conduction cannot be obtained

and, if Figure 20 As shown in the current waveform diagram at the time of power supply, the power supply state becomes unstable, and there is a problem that stable electrolytic polymerization cannot be performed.

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