Method and Device for Producing a Membrane Electrode Assembly for a Fuel Cell
US-2018241054-A1 · Aug 23, 2018 · US
Method for production and processing of a framed proton-conducting membrane
US12500258B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12500258-B2 |
| Application number | US-202118005487-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 22, 2021 |
| Priority date | Oct 26, 2020 |
| Publication date | Dec 16, 2025 |
| Grant date | Dec 16, 2025 |
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Abstract
Official abstract text for this publication.
A method for production and processing of a framed proton-conducting membrane for a fuel cell, comprises: providing of the proton-conducting membrane and a frame comprising at least two media ports inserting the membrane into a recess of the frame, processing of at least one surface of the frame such that a first region exists with an increased force of adhesion for a joining by means of gluing, and at least one second region exists with a lesser force of adhesion than the increased force of adhesion.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A method for production and processing of a framed proton-conducting membrane for a fuel cell, comprising: providing of the proton-conducting membrane and a frame comprising at least two media ports; inserting the membrane into a recess of the frame; and processing of at least one surface of the frame such that a first region exists with an increased force of adhesion for a joining by gluing, and at least one second region exists with a lesser force of adhesion than the increased force of adhesion. 2 . The method according to claim 1 , wherein the second region is bounded by a closed line extending between the media ports and the recess of the frame. 3 . The method according to claim 2 , wherein the second region extends up to the recess. 4 . The method according to claim 1 , wherein the at least one region of the frame is processed by means of plasma irradiation. 5 . The method according to claim 1 , wherein the at least one region of the frame is processed with electromagnetic radiation. 6 . The method according to claim 1 , wherein the second region is covered by means of a mask before the processing of the at least one surface of the frame is done. 7 . The method according to claim 4 , wherein the irradiation of the at least one surface of the frame is done by means of a radiation source comprising a slit system or a mask, and the second region is left out from the irradiation by the radiation source. 8 . The method according to claim 1 , wherein before or during the processing of the at least one surface of the frame there is applied a dewetting agent to the surface of the second region, at least in one area, so that the wetting angle on the surface of the second region is greater than 90°. 9 . The method according to claim 8 , wherein the dewetting agent is based on a silicone. 10 . The method according to claim 1 , wherein the processing of the at least one surface of the frame is done by heating.
Assignees
Inventors
Classifications
Fuel cells with polymeric electrolytes · CPC title
thermal other than drying, e.g. sintering · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
Joining single elements to sheets, plates or other substantially flat surfaces (B29C66/5326 takes precedence) · CPC title
Joining a relatively small portion of the surface of said articles (B29C66/45 takes precedence) · CPC title
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- What does patent US12500258B2 cover?
- A method for production and processing of a framed proton-conducting membrane for a fuel cell, comprises: providing of the proton-conducting membrane and a frame comprising at least two media ports inserting the membrane into a recess of the frame, processing of at least one surface of the frame such that a first region exists with an increased force of adhesion for a joining by means of gluing…
- Who is the assignee on this patent?
- Audi Ag
- What technology area does this patent fall under?
- Primary CPC classification H01M8/1093. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 16 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).