Solder Alloy, Solder Paste, Solder Ball, Solder Preform, Solder Joint, Vehicle-Mounted Electronic Circuit, ECU Electronic Circuit, Vehicle-Mounted Electronic Circuit Device, and ECU Electronic Circuit Device
US-2024238914-A1 · Jul 18, 2024 · US
Porous metal body, method for manufacturing porous metal body, and fuel cell
US10205177B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10205177-B2 |
| Application number | US-201414901183-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 9, 2014 |
| Priority date | Jun 27, 2013 |
| Publication date | Feb 12, 2019 |
| Grant date | Feb 12, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A porous metal body is provided that is inexpensive, usable for an electrode of a fuel cell or the like, and has excellent corrosion resistance. There is provided a porous metal body for a fuel cell, which is a sheet-shaped porous metal body, including at least nickel, tin, and chromium, in which the chromium concentration of at least one surface of the porous metal body is 3% to 50% by mass. In the porous metal body, preferably, the chromium concentration of one surface is higher than the chromium concentration of another surface.
First claim
Opening claim text (preview).
The invention claimed is: 1. A porous metal body, which is a single sheet-shaped porous metal body, comprising at least nickel, tin, and chromium, the sheet-shaped porous metal body having a first surface and a second surface, the first surface and the second surface being on opposite sides of the sheet-shaped porous metal body in a thickness direction of the sheet-shaped porous metal body, wherein the chromium concentration of at least one of the first surface and the second surface of the porous metal body is 3% to 50% by mass, wherein the chromium concentration of the first surface of the porous metal body is higher than the chromium concentration of the second surface of the porous metal body such that the chromium concentration varies from the first surface to the second surface in the thickness direction of the sheet-shaped porous metal body, and wherein the porous metal body is a part of a fuel cell. 2. The porous metal body according to claim 1 , wherein the first surface is in direct contact with a membrane electrode assembly of a fuel cell. 3. The porous metal body according to claim 1 , wherein the chromium concentration of the at least one of the first surface and the second surface of the porous metal body is 7% to 40% by mass. 4. The porous metal body according to claim 1 , wherein the porous metal body is used as a current collector. 5. The porous metal body according to claim 1 , wherein the chromium concentration of each of the first surface and the second surface of the porous metal body is 3% to 50% by mass.
Assignees
Inventors
Classifications
- C22C13/00Primary
Alloys based on tin · CPC title
Perforated or foraminous objects, e.g. sieves (C25D1/10 takes precedence) · CPC title
- H01M8/0245Primary
in the form of layered or coated products · CPC title
of chromium · CPC title
of nickel or cobalt · CPC title
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- What does patent US10205177B2 cover?
- A porous metal body is provided that is inexpensive, usable for an electrode of a fuel cell or the like, and has excellent corrosion resistance. There is provided a porous metal body for a fuel cell, which is a sheet-shaped porous metal body, including at least nickel, tin, and chromium, in which the chromium concentration of at least one surface of the porous metal body is 3% to 50% by mass. I…
- Who is the assignee on this patent?
- Sumitomo Electric Industries, Sumitomo Electric Toyama Co
- What technology area does this patent fall under?
- Primary CPC classification C22C13/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 12 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).