Catalyst-ionomer systems and methods for gas-phase electrolysis
US-2022396889-A1 · Dec 15, 2022 · US
Electrochemical cell catalyst layers
US12424646B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12424646-B2 |
| Application number | US-202217841973-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 16, 2022 |
| Priority date | Jun 16, 2022 |
| Publication date | Sep 23, 2025 |
| Grant date | Sep 23, 2025 |
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- Title
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Abstract
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A cathode catalyst layer includes a support substrate having a pore-free surface region and a porous surface region having a plurality of pores, a first electrolyte in direct contact with the pore-free surface region, and a second electrolyte contained within the plurality of pores, the second electrolyte being different from the first electrolyte.
First claim
Opening claim text (preview).
What is claimed is: 1. A cathode catalyst layer comprising: a support substrate having a pore-free surface region and a porous surface region having a plurality of pores; a first electrolyte in direct contact with the pore-free surface region; and a second electrolyte contained within the plurality of pores, the second electrolyte being different from the first electrolyte, the second electrolyte being an ionic liquid. 2. The cathode catalyst layer of claim 1 , wherein the first electrolyte has a different chemical composition than the second electrolyte. 3. The cathode catalyst layer of claim 1 , wherein the first electrolyte has a greater proton conductivity than the second electrolyte. 4. The cathode catalyst layer of claim 1 , wherein the second electrolyte has a greater oxygen conductivity than the first electrolyte. 5. The cathode catalyst layer of claim 1 , wherein the first and second electrolytes are miscible. 6. The cathode catalyst layer of claim 1 , wherein the first and second electrolytes form an interface at a pore surface. 7. A cathode catalyst layer comprising: a support substrate having a pore-free surface region and a porous surface region having a plurality of pores; a first electrolyte in direct contact with the pore-free surface region; and a second electrolyte contained within the plurality of pores, the second electrolyte being different from the first electrolyte, the first electrolyte having a greater proton conductivity than the second electrolyte or the second electrolyte having a greater oxygen conductivity than the first electrolyte. 8. The cathode catalyst layer of claim 7 , wherein the first electrolyte has a different chemical composition than the second electrolyte. 9. The cathode catalyst layer of claim 7 , wherein the first and second electrolytes are miscible. 10. The cathode catalyst layer of claim 7 , wherein the first and second electrolytes form an interface at a pore surface. 11. A cathode catalyst layer comprising: a support substrate having a pore-free surface region and a porous surface region having a plurality of pores; a first electrolyte in direct contact with the pore-free surface region; and a second electrolyte contained within the plurality of pores, the second electrolyte being different from the first electrolyte, the first and second electrolytes being miscible. 12. The cathode catalyst layer of claim 11 , wherein the first electrolyte has a different chemical composition than the second electrolyte. 13. The cathode catalyst layer of claim 11 , wherein the first and second electrolytes form an interface at a pore surface.
Assignees
Inventors
Classifications
- H01M4/9083Primary
on carbon or graphite · CPC title
characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) · CPC title
layered · CPC title
Porous electrodes · CPC title
- H01M8/1044Primary
Mixtures of polymers, of which at least one is ionically conductive · CPC title
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Frequently asked questions
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- What does patent US12424646B2 cover?
- A cathode catalyst layer includes a support substrate having a pore-free surface region and a porous surface region having a plurality of pores, a first electrolyte in direct contact with the pore-free surface region, and a second electrolyte contained within the plurality of pores, the second electrolyte being different from the first electrolyte.
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- What technology area does this patent fall under?
- Primary CPC classification H01M4/9083. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 23 2025 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).