Membrane electrode assembly, laminating method, electrochemical cell, stack, and electrolyzer
US-2024093392-A1 · Mar 21, 2024 · US
Electrochemical cell for hydrogen pump and compression apparatus
US2024060190A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024060190-A1 |
| Application number | US-202318500159-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 2, 2023 |
| Priority date | May 27, 2021 |
| Publication date | Feb 22, 2024 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
An electrochemical cell for a hydrogen pump includes an electrolyte membrane, an anode catalyst layer disposed on a first main surface of the electrolyte membrane, a cathode catalyst layer disposed on a second main surface of the electrolyte membrane, an anode gas diffusion layer disposed on the anode catalyst layer, and a cathode gas diffusion layer disposed on the cathode catalyst layer. When a voltage is applied between the anode catalyst layer and the cathode catalyst layer, the cathode gas diffusion layer is exposed to a hydrogen-containing gas at a pressure higher than that at the anode gas diffusion layer. A thickness of the anode gas diffusion layer is greater than or equal to a thickness of the cathode gas diffusion layer.
First claim
Opening claim text (preview).
What is claimed is: 1 . An electrochemical cell for a hydrogen pump, the electrochemical cell comprising: an electrolyte membrane; an anode catalyst layer disposed on a first main surface of the electrolyte membrane; a cathode catalyst layer disposed on a second main surface of the electrolyte membrane; an anode gas diffusion layer disposed on the anode catalyst layer; and a cathode gas diffusion layer disposed on the cathode catalyst layer, wherein when a voltage is applied between the anode catalyst layer and the cathode catalyst layer, the cathode gas diffusion layer is exposed to a hydrogen-containing gas at a pressure higher than that at the anode gas diffusion layer, and a thickness of the anode gas diffusion layer is greater than or equal to a thickness of the cathode gas diffusion layer. 2 . The electrochemical cell according to claim 1 , wherein the anode gas diffusion layer has a higher modulus of elasticity than the cathode gas diffusion layer. 3 . The electrochemical cell according to claim 1 , wherein the anode gas diffusion layer includes a porous metal sheet. 4 . The electrochemical cell according to claim 1 , wherein the anode gas diffusion layer includes a porous carbon sheet. 5 . The electrochemical cell according to claim 4 , wherein the porous carbon sheet is a carbon powder sintered body. 6 . The electrochemical cell according to claim 4 , wherein the porous carbon sheet is a carbon fiber sintered body. 7 . The electrochemical cell according to claim 1 , wherein a difference between the thickness of the anode gas diffusion layer and the thickness of the cathode gas diffusion layer is less than or equal to 0.1 mm. 8 . A compression apparatus comprising: the electrochemical cell according to claim 1 ; and a voltage applicator that applies a voltage between the anode catalyst layer and the cathode catalyst layer of the electrochemical cell, wherein the compression apparatus causes, by applying the voltage with the voltage applicator to generate compressed hydrogen, hydrogen in a hydrogen-containing gas supplied to an anode to move to a cathode through the electrolyte membrane and generates compressed hydrogen.
Assignees
Inventors
Classifications
- C25B1/02Primary
Hydrogen or oxygen · CPC title
with diaphragms · CPC title
Gas diffusion electrodes · CPC title
Electrodes comprising one or more electrocatalytic coatings on a substrate · CPC title
Fuel cells · CPC title
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- What does patent US2024060190A1 cover?
- An electrochemical cell for a hydrogen pump includes an electrolyte membrane, an anode catalyst layer disposed on a first main surface of the electrolyte membrane, a cathode catalyst layer disposed on a second main surface of the electrolyte membrane, an anode gas diffusion layer disposed on the anode catalyst layer, and a cathode gas diffusion layer disposed on the cathode catalyst layer. When…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C25B1/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Feb 22 2024 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).