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US 12,183,518 B2Granted
Electrolytic capacitor and method for production thereof
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorHitoshi Fukui
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Abstract
An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a first layer and a second layer disposed on the first layer. The first layer contains a first conductive polymer. And the second layer contains a second conductive polymer that is a self-doped conductive polymer.
Claims20
An electrolytic capacitor comprising:
- an anode body;
- a dielectric layer disposed on the anode body;
- and
- a solid electrolyte layer disposed on the dielectric layer, wherein:
- the solid electrolyte layer includes a first layer including a first conductive polymer and a second conductive polymer, the first conductive polymer being a non-self-doped conductive polymer, the second conductive polymer being a self-doped conductive polymer,
- the first layer has voids in which the first conductive polymer is absent, and
- the second conductive polymer exists in at least part of the voids of the first layer.
4 more elements
A method for producing an electrolytic capacitor comprising:
- preparing an anode body on which a dielectric layer is disposed;
- and
- forming a solid electrolyte layer including a first conductive polymer and a second conductive polymer by adhering a liquid composition containing the second conductive polymer to a layer including the first conductive polymer after forming the layer including the first conductive polymer on the dielectric layer, the first conductive polymer being a non-self-doped conductive polymer, the second conductive polymer being a self-doped conductive polymer.
Dependencies are inferred from the claim text.