Fuel cell separator and coating method of seperator for fuel cell separator
US-2018112306-A1 · Apr 26, 2018 · US
Separator for fuel cell and coating method thereof
US10818936B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10818936-B2 |
| Application number | US-201715807377-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 8, 2017 |
| Priority date | Aug 16, 2017 |
| Publication date | Oct 27, 2020 |
| Grant date | Oct 27, 2020 |
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- Title
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Abstract
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A separator for a fuel cell includes: a metal base material; and a carbon coating layer formed on one surface or both surfaces of the metal base material, in which roughness Ra formed at an interface between the metal base material and the carbon coating layer may be in a range of 20 to 78 nm.
First claim
Opening claim text (preview).
What is claimed is: 1. A separator for a fuel cell, comprising: a metal base material; and a carbon coating layer formed on one surface or both surfaces of the metal base material, wherein roughness Ra formed at an interface between the metal base material and the carbon coating layer is in a range of 20 to 78 nm, wherein the metal base material comprises an ion permeating layer, wherein the ion permeating layer includes carbon diffusion interfering ions, and wherein the ion permeating layer extends from a surface of the metal base material in an inner direction of the metal base material. 2. The separator for the fuel cell of claim 1 , wherein a contact angle of the carbon coating layer with respect to water is in a range of 65 to 80°. 3. The separator for the fuel cell of claim 1 , wherein a contact angle hysteresis of the carbon coating layer with respect to water is equal to or less than 20°. 4. The separator for the fuel cell of claim 1 , wherein a thickness of the carbon coating layer is equal to or less than 1 μm. 5. The separator for the fuel cell of claim 1 , wherein the carbon diffusion interfering ions include nitrogen or boron ions. 6. The separator for the fuel cell of claim 1 , wherein a thickness of the ion permeating layer is in a range of 30 to 300 nm.
Assignees
Inventors
Classifications
Deposition of carbon only · CPC title
Metals or alloys · CPC title
After-treatment · CPC title
- H01M8/0228Primary
in the form of layered or coated products · CPC title
by etching with a reactive gas · CPC title
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Frequently asked questions
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- What does patent US10818936B2 cover?
- A separator for a fuel cell includes: a metal base material; and a carbon coating layer formed on one surface or both surfaces of the metal base material, in which roughness Ra formed at an interface between the metal base material and the carbon coating layer may be in a range of 20 to 78 nm.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Motors Corp, Dongwoo Hst Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/0228. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 27 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).