Panasonic Intellectual Property Management Co., Ltd.

Tetsuro Iwasa

Koji Okamoto

Takahiro Kobayashi

Yasuo Tanaka

Nobuyuki Yamaguchi

Ryo Morioka

Koji Fukuchi

Youichirou Uka

Makoto Nagashima

A method for producing an electrolytic capacitor includes: a first step of preparing an anode body, and forming a dielectric layer on a surface of the anode body; a second step of forming a first conductive polymer layer on a surface of the dielectric layer, the first conductive polymer layer including a first conductive polymer and a first silane compound; a third step of bringing the first conductive polymer layer into contact with a first treatment liquid; and a fourth step of providing a second silane compound to the first conductive polymer layer after the third step.

Method for producing electrolytic capacitor

An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a &#x3c0;-conjugated conductive polymer, a high-molecular-weight dopant having an acid group, and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a Calkylene oxide group.

Electrolytic capacitor and conductive polymer dispersion for manufacturing electrolytic capacitor

An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, a first conductive polymer layer covering at least a part of the dielectric layer, and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer contains a first conductive polymer and a first silane compound. The second conductive polymer layer contains a second conductive polymer and a basic compound. The basic compound may be an amine compound.

Electrolytic capacitor and method for manufacturing same

An electrolytic capacitor includes: an anode body; a dielectric layer formed on the anode body; a first conductive polymer layer which covers at least a portion of the dielectric layer; and a second conductive polymer layer which covers at least a portion of the first conductive polymer layer. The first conductive polymer layer includes a first layer and a second layer. The first layer contains a first conductive polymer and a first dopant, and covers at least a portion of the dielectric layer. The second layer is formed on the first layer, and contains a first silane compound. The second conductive polymer layer contains a second conductive polymer, a second dopant, and a basic compound.

Electrolytic capacitor and method for producing same

An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a first conductive polymer layer covering at least a portion of the dielectric layer, and a second conductive polymer layer covering at least a portion of the first conductive polymer layer. The second conductive polymer layer includes a second conductive polymer and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a Calkylene oxide group.

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Kyoto, Japan

Tetsuro Iwasa