Electrochemical cell
US-2024332559-A1 · Oct 3, 2024 · US
Fuel cell
US2018205096A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018205096-A1 |
| Application number | US-201615743851-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 8, 2016 |
| Priority date | Jul 16, 2015 |
| Publication date | Jul 19, 2018 |
| Grant date | — |
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- Title
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Abstract
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A fuel cell includes a MEA that includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode, the solid electrolyte layer containing an ion-conducting solid oxide; at least one first porous metal body arranged to oppose at least one of the cathode and the anode; and an interconnector arranged to oppose the first porous metal body and having a gas supply port and a gas discharge port formed therein. The first porous metal body includes a porous metal body S that opposes the gas supply port and has a three-dimensional mesh-like skeleton, and a porous metal body H that has a three-dimensional mesh-like skeleton and is other than the porous metal body S. A porosity Ps of the porous metal body S and a porosity Ph of the porous metal body H satisfy a relationship: Ps<Ph.
First claim
Opening claim text (preview).
1 : A fuel cell comprising: a MEA that includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode, the solid electrolyte layer containing an ion-conducting solid oxide; at least one first porous metal body arranged to oppose at least one of the cathode and the anode; and an interconnector arranged to oppose the first porous metal body and having a gas supply port and a gas discharge port formed therein, wherein the first porous metal body includes a porous metal body S that opposes the gas supply port and has a three-dimensional mesh-like skeleton, and a porous metal body H that has a three-dimensional mesh-like skeleton and is other than the porous metal body S, and wherein a porosity Ps of the porous metal body S and a porosity Ph of the porous metal body H satisfy a relationship: Ps<Ph. 2 : The fuel cell according to claim 1 , wherein the porous metal body S also opposes the gas discharge port and has a shape of a strip that extends along a shortest straight line that connects a center of the gas supply port and a center of the gas discharge port. 3 : The fuel cell according to claim 1 , wherein the porous metal body S has a shape of a circle or polygon with a center corresponding to a center of the gas supply port. 4 : The fuel cell according to claim 1 , wherein the porosity Ps is 85 vol % or more. 5 : The fuel cell according to claim 1 , wherein a surface of the interconnector opposing the first porous metal body is smooth and flat. 6 : The fuel cell according to claim 1 , further comprising a second porous metal body that is stacked on the first porous metal body and has a three-dimensional mesh-like skeleton. 7 : The fuel cell according to claim 6 , wherein the first porous metal body and the second porous metal body are bonded, and in the bonded portion, the skeleton of the first porous metal body and the skeleton of the second porous metal body are entangled. 8 : The fuel cell according to claim 6 , wherein the second porous metal body is disposed between the first porous metal body and the cathode or anode, and the second porous metal body has a pore size of 100 to 1000 μm. 9 : The fuel cell according to claim 1 , comprising the first porous metal body that opposes at least the anode. 10 : The fuel cell according to claim 1 , wherein a ratio of the porosity Ph to the porosity Ps is 1.05 to 2. 11 : The fuel cell according to claim 1 , wherein the porous metal body S has a pore size of 100 to 1000 μm, and the porous metal body H has a pore size of 300 to 3500 μm.
Assignees
Inventors
Classifications
with both reactants being gaseous or vaporised · CPC title
operating at high temperature, e.g. with stabilised ZrO2 electrolyte · CPC title
- H01M8/0232Primary
Metals or alloys · CPC title
Fuel cells with solid oxide electrolytes · CPC title
based on zirconium oxide · CPC title
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- What does patent US2018205096A1 cover?
- A fuel cell includes a MEA that includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode, the solid electrolyte layer containing an ion-conducting solid oxide; at least one first porous metal body arranged to oppose at least one of the cathode and the anode; and an interconnector arranged to oppose the first porous metal body and having a gas supply…
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification H01M8/0232. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 19 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).