Electrolytic capacitor
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsMasayuki HOGIRI, Yuki UEDA, Hitoshi ISHIMOTO
Life of this patent
Estimating the term…
Abstract
An electrolytic capacitor includes a capacitor element including a porous anode body, an anode wire partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer, wherein the anode body is formed of a first metal, the anode wire is formed of a second metal having a different composition from the first metal, and the second metal has a conductivity S2 that is larger than a conductivity S1 of the first metal. This allows for providing an electrolytic capacitor which suppresses an increase in production costs and has a low ESR.
Claims20
An electrolytic capacitor comprising a capacitor element including
- a porous anode body,
- an anode wire partially embedded in the anode body,
- a dielectric layer formed on a surface of the anode body, and
- a solid electrolyte layer covering at least a portion of the dielectric layer, wherein
- the anode body is formed of a first metal,
- the anode wire is formed of a second metal having a different composition from the first metal, and
- the second metal has a conductivity S2 that is larger than a conductivity S1 of the first metal.
An electrolytic capacitor comprising a capacitor element including
- a porous anode body,
- an anode wire partially embedded in the anode body,
- a dielectric layer formed on a surface of the anode body, and
- a solid electrolyte layer covering at least a portion of the dielectric layer, wherein
- the anode body is formed of a first metal,
- the anode wire has a core part, and a surface layer portion covering at least a portion of a surface of the core part,
- the core part is formed of a second metal having a different composition from the first metal,
- the surface layer portion is formed of a third metal having a different composition from the second metal, and
- the third metal includes a common constituting element with the first metal, or a constituting element capable of forming an all-proportional solid solution type alloy with the constituting element of the first metal.
Dependencies are inferred from the claim text.