Winding type capacitor assembly with enhanced structural strength and method of manufacturing the same
US-2019341197-A1 · Nov 7, 2019 · US
Electrolytic capacitor
US2024047141A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024047141-A1 |
| Application number | US-202118258744-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 28, 2021 |
| Priority date | Dec 28, 2020 |
| Publication date | Feb 8, 2024 |
| Grant date | — |
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Abstract
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A disclosed electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, a cathode body, and a electrolyte layer and a separator that are disposed between the dielectric layer and the cathode body. The electrolyte layer includes a non-aqueous solvent, conductive particles, and a conductive polymer. An amount of the conductive particles present in a first portion included in the electrolyte layer and located on the dielectric layer side is different from an amount of the conductive particles in a second portion included in the electrolyte layer and located on the cathode body side.
First claim
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1 . An electrolytic capacitor comprising a capacitor element, wherein the capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, a cathode body, and an electrolyte layer and a separator that are disposed between the dielectric layer and the cathode body, the electrolyte layer includes a non-aqueous solvent, conductive particles, and a conductive polymer, and an amount of the conductive particles present in a first portion included in the electrolyte layer and located on the dielectric layer side is different from an amount of the conductive particles in a second portion included in the electrolyte layer and located on the cathode body side. 2 . The electrolytic capacitor according to claim 1 , wherein the electrolyte layer includes a dopant of the conductive polymer. 3 . The electrolytic capacitor according to claim 2 , wherein the dopant is a polymeric dopant containing an acidic group, and the electrolyte layer includes an electrolytic solution including the non-aqueous solvent and a base component dissolved in the non-aqueous solvent. 4 . The electrolytic capacitor according to claim 3 , wherein a content of the base component in the electrolytic solution is 0.1 mass % or more and 20 mass % or less. 5 . The electrolytic capacitor according to claim 2 , wherein a mass of the conductive particles included in the electrolyte layer is larger than a total mass of the conductive polymer and the dopant included in the electrolyte layer. 6 . The electrolytic capacitor according to claim 1 , wherein a content C1 (vol %) of the conductive particles in the first portion is in a range of 0 to 0.5 times a content C2 (vol %) of the conductive particles in the second portion. 7 . The electrolytic capacitor according to claim 1 , wherein the conductive particles are unevenly distributed in the second portion. 8 . The electrolytic capacitor according to claim 6 , wherein the cathode body is a metal foil, and the conductive particles are metal particles.
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- What does patent US2024047141A1 cover?
- A disclosed electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, a cathode body, and a electrolyte layer and a separator that are disposed between the dielectric layer and the cathode body. The electrolyte layer includes a non-aqueous solvent, conductive particles, and a conductive polymer. A…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01G9/028. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Feb 08 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).