Solid electrolytic capacitor and method for manufacturing solid electrolytic capacitor
US-2024347279-A1 · Oct 17, 2024 · US
Method for producing electrode material for aluminum electrolytic capacitors, and electrode material for aluminum electrolytic capacitors
US10079111B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10079111-B2 |
| Application number | US-201414654722-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2014 |
| Priority date | Jan 18, 2013 |
| Publication date | Sep 18, 2018 |
| Grant date | Sep 18, 2018 |
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- Title
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Abstract
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The present invention provides a production method that enables easy production of an electrode material for aluminum electrolytic capacitor having a high capacitance, and that enables, in particular, easy production of an electrode material for aluminum electrolytic capacitor having a high capacitance regardless of the average particle diameter (D50) of aluminum powder to be used. Specifically, the present invention provides a method for producing an electrode material for aluminum electrolytic capacitor, comprising the steps of: (1) a first step of forming a film of a paste composition containing powder of at least one of aluminum and an aluminum alloy, a binder resin, and a solvent on at least one surface of a substrate, (2) a second step of sintering the film, and (3) a third step of applying an etching treatment on the sintered film.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing an electrode material for aluminum electrolytic capacitor, comprising the steps of: (1) a first step of forming a film of a paste composition containing powder of at least one of aluminum and an aluminum alloy, a binder resin, and a solvent on at least one surface of a substrate, (2) a second step of sintering the film, and (3) a third step of applying an etching treatment on the sintered film. 2. The method according to claim 1 , wherein the etching treatment is at least one selected from the group consisting of chemical etching using an acidic solution, chemical etching using an alkaline solution, DC electrolytic etching, and AC electrolytic etching. 3. The method according to claim 1 , wherein the etching treatment first performs chemical etching using an acidic solution or chemical etching using an alkaline solution, and then performs DC electrolytic etching or AC electrolytic etching. 4. The method according to claim 1 , wherein the etching treatment is chemical etching using an acidic solution, chemical etching using an alkaline solution, or DC electrolytic etching. 5. The method according to claim 1 , wherein the etching treatment is AC electrolytic etching. 6. The method according to claim 1 , wherein the powder has an average particle diameter D 50 of 1 to 80 μm. 7. The method according to claim 1 , wherein the sintering temperature is not lower than 560° C. and not higher than 660° C. 8. The method according to claim 1 , wherein the thickness of the film after the sintering is 5 to 1000 μm.
Assignees
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Classifications
Etched foil electrodes · CPC title
based on aluminium · CPC title
mainly consisting of metals or alloys · CPC title
of light metals · CPC title
- H01G9/0029Primary
Processes of manufacture · CPC title
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- What does patent US10079111B2 cover?
- The present invention provides a production method that enables easy production of an electrode material for aluminum electrolytic capacitor having a high capacitance, and that enables, in particular, easy production of an electrode material for aluminum electrolytic capacitor having a high capacitance regardless of the average particle diameter (D50) of aluminum powder to be used. Specifically…
- Who is the assignee on this patent?
- Toyo Aluminium Kk
- What technology area does this patent fall under?
- Primary CPC classification H01G9/0029. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 18 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).