Electrochemical cell having a cascade seal configuration and hydrogen reclamation
US-2017107633-A1 · Apr 20, 2017 · US
Seal configuration for electrochemical cell
US12166248B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12166248-B2 |
| Application number | US-202017086952-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 2, 2020 |
| Priority date | Jul 29, 2013 |
| Publication date | Dec 10, 2024 |
| Grant date | Dec 10, 2024 |
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- Title
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Abstract
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An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface and the proton exchange membrane. The gasket is configured to plastically deform to create a seal about one of the cathode compartment or the anode compartment. The sealing surface can include one or more protrusions.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrochemical cell, comprising: a pair of bipolar plates and a membrane electrode assembly located between the pair of bipolar plates, wherein the membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween; and a gasket located between the proton exchange membrane and a bipolar plate of the pair of bipolar plates, wherein the gasket comprises a sealing surface having at least one plastically deformable protrusion, wherein the sealing surface creates a seal on only one of the pair of bipolar plates. 2. The electrochemical cell of claim 1 , wherein the gasket, in its compressed state, has a ratio of W G2 :W p ranging from 0.25:1 to 2:1; wherein W G2 is width of the gasket and W p is width of a pocket on the bipolar plate. 3. The electrochemical cell of claim 1 , wherein the sealing surface has a ratio of W p :S t ranging from 1:1 to 20:1; wherein W p is width of a pocket on the bipolar plate and S t is spacing between the protrusions. 4. The electrochemical cell of claim 1 , wherein compression of the at least one protrusion creates a seal about one of the cathode compartment or the anode compartment. 5. The electrochemical cell of claim 1 , wherein a reinforcement layer is disposed along a side of the proton exchange membrane that is opposite to the side along which the gasket is disposed. 6. The electrochemical cell of claim 5 , wherein the reinforcement layer is located in the anode compartment. 7. The electrochemical cell of claim 6 , wherein the reinforcement layer has a length dimension that is greater than the length dimension of the gasket. 8. The electrochemical cell of claim 1 , further comprising a second seal. 9. The electrochemical cell of claim 8 , wherein the first seal is enclosed within the second seal. 10. The electrochemical cell of claim 8 , further comprising a third seal.
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Classifications
of the filter-press type · CPC title
with diaphragms · CPC title
characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) · CPC title
characterised by the form (characterised by a channel configuration H01M8/0258) · CPC title
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features · CPC title
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- What does patent US12166248B2 cover?
- An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface…
- Who is the assignee on this patent?
- Nuvera Fuel Cells Llc
- What technology area does this patent fall under?
- Primary CPC classification H01M8/0273. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 10 2024 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).