Battery
US-10658673-B2 · May 19, 2020 · US
Protective-layer-coated-interconnector, cell stack including this protective-layer-coated-interconnector, and hydrogen energy system including the same
US2023075910A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023075910-A1 |
| Application number | US-202217883358-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 8, 2022 |
| Priority date | Sep 6, 2021 |
| Publication date | Mar 9, 2023 |
| Grant date | — |
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- Title
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Abstract
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[Problem] Provided are a protective-layer-coated-interconnector, a cell stack, and a hydrogen energy system. A component (particularly Cr) of the interconnector is prevented from diffusing even if the interconnector is exposed to high temperature for a long time. The interconnector has sufficient diffusion barrier performance and protective performance even with a protective layer thinner than conventionally, is inhibited from being degraded through use, and has excellent electrical conductivity.[Solution] A protective-layer-coated-interconnector including an interconnector material and a protective layer on the surface of the interconnector material, wherein the protective layer contains a metal layer constituted by a Group 11 element. A cell stack and a hydrogen energy system that each include this interconnector.
First claim
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1 . A protective-layer-coated-interconnector comprising an interconnector material and a protective layer on the surface of the interconnector material, wherein the protective layer contains a metal layer constituted by a Group 11 element. 2 . The protective-layer-coated-interconnector according to claim 1 , wherein the protective layer contains a metal layer constituted by a Group 11 element and contains an oxide layer, and the oxide layer is disposed on the external side. 3 . The protective-layer-coated-interconnector according to claim 1 , wherein the oxide layer contains at least one element selected from the group consisting of Mn, Fe, Co, Ni, Cu, Ce, and Zn. 4 . The protective-layer-coated-interconnector according to claim 1 , wherein the metal layer constituted by a Group 11 element has a thickness of 0.1 μm to 100 μm. 5 . The protective-layer-coated-interconnector according to claim 1 , wherein the oxide layer has a thickness of 0.1 μm to 100 μm. 6 . The protective-layer-coated-interconnector according to claim 1 , wherein the metal layer constituted by a Group 11 element has a porosity of 0 to 40%. 7 . The protective-layer-coated-interconnector according to claim 1 , wherein the oxide layer has a porosity of 0 to 60%. 8 . A cell stack comprising a structural unit in which a solid oxide electrochemical cell containing a fuel electrode, an electrolyte layer, and an air electrode is sandwiched between the protective-layer-coated-interconnectors according to claim 1 . 9 . A hydrogen energy system comprising the cell stack according to claim 7 . 10 . The protective-layer-coated-interconnector according to claim 2 , wherein the oxide layer contains at least one element selected from the group consisting of Mn, Fe, Co, Ni, Cu, Ce, and Zn. 11 . The protective-layer-coated-interconnector according to claim 2 , wherein the metal layer constituted by a Group 11 element has a thickness of 0.1 μm to 100 μm. 12 . The protective-layer-coated-interconnector according to claim 2 , wherein the oxide layer has a thickness of 0.1 μm to 100 μm. 13 . The protective-layer-coated-interconnector according to claim 2 , wherein the metal layer constituted by a Group 11 element has a porosity of 0 to 40%. 14 . The protective-layer-coated-interconnector according to claim 2 , wherein the oxide layer has a porosity of 0 to 60%. 15 . A cell stack comprising a structural unit in which a solid oxide electrochemical cell containing a fuel electrode, an electrolyte layer, and an air electrode is sandwiched between the protective-layer-coated-interconnectors according to claim 2 .
Assignees
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Classifications
in the form of layered or coated products · CPC title
- H01M8/0245Primary
in the form of layered or coated products · CPC title
Fuel cells with solid oxide electrolytes · CPC title
Fuel cells · CPC title
Metals or alloys · CPC title
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Frequently asked questions
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- What does patent US2023075910A1 cover?
- [Problem] Provided are a protective-layer-coated-interconnector, a cell stack, and a hydrogen energy system. A component (particularly Cr) of the interconnector is prevented from diffusing even if the interconnector is exposed to high temperature for a long time. The interconnector has sufficient diffusion barrier performance and protective performance even with a protective layer thinner than …
- Who is the assignee on this patent?
- Toshiba Energy Systems & Solutions Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M8/0245. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 09 2023 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).