Electrolytic capacitor and method for manufacturing same
US-2017098510-A1 · Apr 6, 2017 · US
Method for manufacturing electrolytic capacitor
US2017133159A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017133159-A1 |
| Application number | US-201515323386-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 26, 2015 |
| Priority date | Jul 3, 2014 |
| Publication date | May 11, 2017 |
| Grant date | — |
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Abstract
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A method for manufacturing an electrolytic capacitor includes: a first step of preparing a capacitor element including an anode having a dielectric layer; a second step of impregnating the capacitor element with a first processing solution including at least a conductive polymer and a first solvent; and a third step of swelling the conductive polymer after the second step, by impregnating the capacitor element with a second processing solution including a swelling agent while at least part of the first solvent remains in the capacitor element.
First claim
Opening claim text (preview).
1 . A method for manufacturing an electrolytic capacitor, the method comprising: a first step of preparing a capacitor element including an anode having a dielectric layer: a second step of impregnating the capacitor element with a first processing solution including at least a conductive polymer and a first solvent; and a third step of swelling the conductive polymer after the second step, by impregnating the capacitor element with a second processing solution including a swelling agent while at least part of the first solvent remains in the capacitor element. 2 . The method for manufacturing an electrolytic capacitor according to claim 1 , wherein a boiling point of the swelling agent is higher than a boiling point of the first solvent. 3 . The method for manufacturing an electrolytic capacitor according to claim 1 , wherein the swelling agent is at least one selected from the group consisting of polyols, carboxylic acids, chain sulfones, and chain amides. 4 . The method for manufacturing an electrolytic capacitor according to claim 1 , wherein the swelling agent is an aliphatic polyol. 5 . The method for manufacturing an electrolytic capacitor according to claim 1 , wherein a mass of the swelling agent impregnated into the capacitor element is 2 to 100 times as much as a mass of the conductive polymer impregnated into the capacitor element. 6 . The method for manufacturing an electrolytic capacitor according to claim 1 , further comprising a fourth step of removing at least part of the first solvent, after the third step. 7 . The method for manufacturing an electrolytic capacitor according to claim 1 , wherein the first solvent is water; and in the third step, the conductive polymer is swelled by impregnating the capacitor element with the second processing solution while at least water remains in the capacitor element. 8 . The method for manufacturing an electrolytic capacitor according to claim 1 , further comprising a fifth step of impregnating the capacitor element with electrolyte, after the third step.
Assignees
Inventors
Classifications
- H01G9/028Primary
Organic semiconducting electrolytes, e.g. TCNQ · CPC title
- H01G9/0032Primary
formation of the dielectric layer · CPC title
Formation of the solid electrolyte layer · CPC title
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- What does patent US2017133159A1 cover?
- A method for manufacturing an electrolytic capacitor includes: a first step of preparing a capacitor element including an anode having a dielectric layer; a second step of impregnating the capacitor element with a first processing solution including at least a conductive polymer and a first solvent; and a third step of swelling the conductive polymer after the second step, by impregnating the c…
- 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 May 11 2017 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).