Separator comprising coating layer, and battery using same
US-2016301055-A1 · Oct 13, 2016 · US
Electrode assembly and method for manufacturing the same
US10505170B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10505170-B2 |
| Application number | US-201615549546-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2016 |
| Priority date | Jul 10, 2015 |
| Publication date | Dec 10, 2019 |
| Grant date | Dec 10, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrode assembly comprising: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion per unit area different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion per unit area, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion per unit area, of both the surfaces. 2. The electrode assembly of claim 1 , wherein both the surfaces of the first separator sheet are activated in adhesion through plasma treatment, and the second surface is relatively weakly plasma-treated compared to the first surface. 3. The electrode assembly of claim 1 , wherein only the first surface of the first separator sheet is activated in adhesion through plasma treatment. 4. The electrode assembly of claim 1 , wherein a binder coating layer is disposed on each of both the surfaces of the first separator sheet, and the binder coating layer having a thickness thinner than that of the binder coating layer disposed on the first surface is disposed on the second surface. 5. The electrode assembly of claim 4 , wherein the first separator sheet is activated in adhesion by plasma-treating the binder coating layer. 6. The electrode assembly of claim 5 , wherein the second surface is relatively weakly plasma-treated compared to the first surface. 7. The electrode assembly of claim 1 , wherein the first electrode sheet is a negative electrode, and the second electrode sheet is a positive electrode. 8. The electrode assembly of claim 1 , further comprising a second separator sheet adhering to one outer surface of the first electrode sheet or the second electrode sheet. 9. The electrode assembly of claim 8 , wherein the second separator sheet is activated in adhesion by plasma-treating a surface of the second separator sheet, which adheres to the first electrode sheet or the second electrode sheet. 10. The electrode assembly of claim 8 , wherein, when the second separator sheet adheres to the outer surface of the second electrode sheet, the adhesion surface of the second separator sheet and the second surface of the first separator sheet have the same adhesion. 11. The electrode assembly of claim 8 , wherein, when the second separator sheet adheres to the outer surface of the first electrode sheet, the adhesion surface of the second separator sheet and the first surface of the first separator sheet have the same adhesion.
Assignees
Inventors
Classifications
- H01M10/0431Primary
Cells with wound or folded electrodes (H01M10/045 takes precedence) · CPC title
Batteries in portable systems, e.g. mobile phone, laptop · CPC title
- H01M2/168Primary
Electricity · mapped topic
Electricity · mapped topic
Manufacturing or production processes characterised by the final manufactured product · CPC title
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Frequently asked questions
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- What does patent US10505170B2 cover?
- The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high ad…
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0431. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 10 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).