Method for forming adhesion layer for secondary battery
US-2015228951-A1 · Aug 13, 2015 · US
Patterned separator and battery comprising same
US10804559B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10804559-B2 |
| Application number | US-201615779275-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2016 |
| Priority date | Dec 18, 2015 |
| Publication date | Oct 13, 2020 |
| Grant date | Oct 13, 2020 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present application relates to a separator and a battery comprising the same. A separator according to an exemplary embodiment of the present application includes: a porous substrate; and a first bonding layer pattern provided on at least one surface of the porous substrate, in which each pattern constituting the first bonding layer pattern is a pattern including a second bonding layer pattern having an aperture ratio of 5% or more and 40% or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A separator comprising: a porous substrate; and a first bonding layer pattern provided on at least one surface of the porous substrate, wherein each pattern constituting the first bonding layer pattern consists of a second bonding layer pattern having an aperture ratio of 5% or more and 40% or less, wherein the second bonding layer pattern is formed from a bonding composition comprising a binder solution, a solvent, and a surfactant, and wherein the bonding composition comprises 49 wt % to 70 wt % of a binder solution, 29 wt % to 50 wt % of a solvent, and 0.1 wt % to 10 wt % of a surfactant, based on a total weight of the bonding composition. 2. The separator of claim 1 , wherein the first bonding layer pattern has a total aperture ratio of 20% or more and less than 80%. 3. The separator of claim 1 , wherein a form of each pattern constituting the second bonding layer pattern comprises at least one of a circle, an ellipse, and a polygon. 4. The separator of claim 1 , wherein each pattern constituting the second bonding layer pattern has a diameter of 10 μm to 100 μm. 5. The separator of claim 1 , wherein a gap between patterns constituting the first bonding layer pattern is 100 μm to 1,000 μm. 6. The separator of claim 1 , wherein the separator has a resistance of 0 ohm and more and 0.65 ohm or less. 7. The separator of claim 1 , wherein the bonding composition has a viscosity of more than 0 cP and less than 30 cP. 8. The separator of claim 1 , wherein the second bonding layer pattern is formed by using a gravure printing method. 9. A battery comprising: a separator, said separator comprising: a porous substrate; and a first bonding layer pattern provided on at least one surface of the porous substrate, wherein each pattern constituting the first bonding layer pattern consists of a second bonding layer pattern having an aperture ratio of 5% or more and 40% or less.
Assignees
Inventors
Classifications
Manufacturing or production processes characterised by the final manufactured product · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
- H01M50/461Primary
with adhesive layers between electrodes and separators · CPC title
Energy storage using batteries · CPC title
- H01M10/0459Primary
Cells or batteries with folded separator between plate-like electrodes · CPC title
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Frequently asked questions
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- What does patent US10804559B2 cover?
- The present application relates to a separator and a battery comprising the same. A separator according to an exemplary embodiment of the present application includes: a porous substrate; and a first bonding layer pattern provided on at least one surface of the porous substrate, in which each pattern constituting the first bonding layer pattern is a pattern including a second bonding layer patt…
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/461. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 13 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).