Electrolytic capacitor
US-2025191849-A1 · Jun 12, 2025 · US
Electrolytic capacitor
US12444549B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12444549-B2 |
| Application number | US-202218580619-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 20, 2022 |
| Priority date | Jul 26, 2021 |
| Publication date | Oct 14, 2025 |
| Grant date | Oct 14, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
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An electrolytic capacitor includes a capacitor element containing a conductive polymer and a liquid component. The liquid component includes a first anion component and a second anion component. The first anion component has a carbonyloxy bond. The second anion component has no carbonyloxy bond and has a sulfonylimide bond.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrolytic capacitor comprising: a capacitor element containing a conductive polymer; and a liquid component, wherein the liquid component includes a first anion component and a second anion component, the first anion component having a carbonyloxy bond, the second anion component having no carbonyloxy bond and having a sulfonylimide bond. 2. The electrolytic capacitor according to claim 1 , wherein an acid dissociation constant pKa of the second anion component in a form of a free acid is 5.0 or less. 3. The electrolytic capacitor according to claim 1 , wherein a content of the second anion component in the liquid component ranges from 3 parts by mass to 250 parts by mass, inclusive, with respect to 100 parts by mass of the first anion component. 4. The electrolytic capacitor according to claim 1 , wherein the liquid component further includes a cation component. 5. The electrolytic capacitor according to claim 4 , wherein a molar ratio of the first anion component to the cation component in the liquid component ranges from 1 to 10, inclusive.
Assignees
Inventors
Classifications
- H01G11/56Primary
Solid electrolytes, e.g. gels; Additives therein · CPC title
Organic semiconducting electrolytes, e.g. TCNQ · CPC title
- H01G11/62Primary
characterised by the solute, e.g. salts, anions or cations therein · CPC title
Solid electrolytic capacitors (H01G11/00 takes precedence) · CPC title
Liquid electrolytic capacitors (H01G11/00 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US12444549B2 cover?
- An electrolytic capacitor includes a capacitor element containing a conductive polymer and a liquid component. The liquid component includes a first anion component and a second anion component. The first anion component has a carbonyloxy bond. The second anion component has no carbonyloxy bond and has a sulfonylimide bond.
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01G11/56. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 14 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).