Cathode flow field distribution for electrochemical cell stacks
US-2019221868-A1 · Jul 18, 2019 · US
Metal porous sheet, fuel cell, and water electrolysis device
US2021119229A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021119229-A1 |
| Application number | US-202017251889-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 6, 2020 |
| Priority date | May 22, 2019 |
| Publication date | Apr 22, 2021 |
| Grant date | — |
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Abstract
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A metal porous sheet includes a metal porous body having a skeleton with a three-dimensional network structure, and has a main surface in which a trench is formed. A depth of the trench is more than or equal to 10 percent of a thickness of the metal porous sheet. An area of the trench is more than or equal to 10 percent of an area of the main surface in a plan view.
First claim
Opening claim text (preview).
1 . A metal porous sheet comprising: a metal porous body having a skeleton with a three-dimensional network structure, the metal porous sheet having a main surface in which a trench is formed, a depth of the trench being more than or equal to 10 percent of a thickness of the metal porous sheet, an area of the trench being more than or equal to 10 percent of an area of the main surface in a plan view. 2 . The metal porous sheet according to claim 1 , wherein the depth of the trench is more than or equal to 30 percent and less than or equal to 90 percent of the thickness of the metal porous sheet. 3 . The metal porous sheet according to claim 1 , wherein the area of the trench is more than or equal to 30 percent and less than or equal to 90 percent of the area of the main surface in a plan view. 4 . The metal porous sheet according to claim 1 , wherein the trench has a first side surface and a second side surface facing each other in a cross sectional view, and a distance between the first side surface and the second side surface decreases with distance from the main surface. 5 . The metal porous sheet according to claim 1 , wherein a plurality of the trenches are arranged to form a plurality of columns extending along a first direction in a plan view, and depths of the trenches belonging to each of the columns increase from one side in the first direction toward the other side in the first direction. 6 . A fuel cell comprising: the metal porous sheet according to claim 1 ; and an interconnector arranged to face the main surface. 7 . The fuel cell according to claim 6 , wherein the metal porous sheet is arranged such that a gas is supplied along a direction intersecting the trench. 8 . The fuel cell according to claim 6 , wherein the metal porous sheet is arranged such that a gas is supplied along a direction parallel to the trench. 9 . A water electrolysis device comprising: the metal porous sheet according to claim 1 ; and an interconnector arranged to face the main surface.
Assignees
Inventors
Classifications
- C25B11/031Primary
Porous electrodes · CPC title
characterised by shape or form · CPC title
- C25B1/04Primary
by electrolysis of water · CPC title
- H01M8/0232Primary
Metals or alloys · CPC title
Fuel cells with solid oxide electrolytes · CPC title
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Frequently asked questions
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- What does patent US2021119229A1 cover?
- A metal porous sheet includes a metal porous body having a skeleton with a three-dimensional network structure, and has a main surface in which a trench is formed. A depth of the trench is more than or equal to 10 percent of a thickness of the metal porous sheet. An area of the trench is more than or equal to 10 percent of an area of the main surface in a plan view.
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification C25B11/031. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Apr 22 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).