Polyimide-based binder for power storage device, electrode mixture paste, negative electrode active material layer, negative electrode sheet for power storage device, and power storage device
US-12176543-B2 · Dec 24, 2024 · US
Dual coating method for electrode
US9748577B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9748577-B2 |
| Application number | US-201514955267-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 1, 2015 |
| Priority date | Jan 28, 2015 |
| Publication date | Aug 29, 2017 |
| Grant date | Aug 29, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a dual coating method for an electrode, which coats the electrode of a battery. The dual coating method for an electrode includes transferring the electrode, coating the transferred electrode with a first coating solution, and coating the primarily-coated electrode with a second coating solution different from the first coating solution.
First claim
Opening claim text (preview).
What is claimed is: 1. A dual coating method for an electrode, the method comprising: transferring the electrode, wherein the electrode has a surface which is formed of a metal material; coating the transferred electrode with a first coating solution to form a primarily-coated electrode; and then coating only a portion of the primarily-coated electrode with a second coating solution different from the first coating solution except for an area defining a curved surface, wherein the area defining the curved surface is coated with only the first coating solution to prevent cracking. 2. The dual coating method of claim 1 , wherein the first coating solution has a slurry form and superior adhesion characteristics with respect to the metal material of the surface of the electrode when compared to those of the second coating solution. 3. The dual coating method of claim 1 , wherein the first coating solution has porosity less than that of the second coating solution. 4. The dual coating method of claim 1 , wherein the second coating solution is composed of an active material having a mean particle size greater than that of the first coating solution. 5. The dual coating method of claim 1 , wherein the second coating solution comprises a rubber-based binder. 6. A dual coating method for an electrode, the method comprising: coating an electrode with a first coating solution to form a primarily-coated electrode with a first coated-region, wherein the electrode has a surface which is formed of a metal material; and coating only a portion of the first coated-region of the primarily-coated electrode with a second coating solution different from the first coating solution except for an area defining a curved surface, wherein the area defining the curved surface is coated with only the first coating solution. 7. The dual coating method of claim 6 , wherein the first coating solution has a slurry form and superior adhesion characteristics with respect to the metal material of the surface of the electrode when compared to those of the second coating solution. 8. The dual coating method of claim 6 , wherein the first coating solution has porosity less than that of the second coating solution. 9. The dual coating method of claim 6 , wherein the second coating solution comprises an active material having a mean particle size greater than that of the first coating solution. 10. The dual coating method of claim 6 , wherein the second coating solution comprises a rubber-based binder. 11. The dual coating method of claim 1 , wherein the area defining the curved surface is a winding core. 12. The dual coating method of claim 6 , wherein the area defining the curved surface is a winding core.
Assignees
Inventors
Classifications
Multilayers · CPC title
of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators · CPC title
- H01M4/622Primary
being polymers · CPC title
- H01M4/0404Primary
by coating on electrode collectors · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
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Frequently asked questions
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- What does patent US9748577B2 cover?
- Provided is a dual coating method for an electrode, which coats the electrode of a battery. The dual coating method for an electrode includes transferring the electrode, coating the transferred electrode with a first coating solution, and coating the primarily-coated electrode with a second coating solution different from the first coating solution.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/622. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 29 2017 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).