WO2025168929 - METHOD OF MANUFACTURING A CATALYST-COATED ION-CONDUCTING MEMBRANE OR A MEMBRANE ELECTRODE ASSEMBLY
National phase entry is expected:
Publication Number
WO/2025/168929
Publication Date
14.08.2025
International Application No.
PCT/GB2025/050210
International Filing Date
04.02.2025
Title **
[English]
METHOD OF MANUFACTURING A CATALYST-COATED ION-CONDUCTING MEMBRANE OR A MEMBRANE ELECTRODE ASSEMBLY
[French]
PROCÉDÉ DE FABRICATION DE MEMBRANE CONDUCTRICE D'IONS REVÊTUE DE CATALYSEUR OU D'ENSEMBLE MEMBRANE-ÉLECTRODE
Applicants **
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
Inventors
BOBOLECKI, Josef Edward
COOLE, Jake
DUCHESNE, Denis
Priority Data
63/549,656
05.02.2024
US
2404732.6
03.04.2024
GB
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2340 | |
| EPO | Filing, Examination, Granting | 12705 | |
| Japan | Filing, Examination, Granting | 2431 | |
| South Korea | Filing, Examination, Granting | 2670 | |
| USA | Filing, Examination, Granting | 6140 |
Total:
26,286
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Abstract[English]
Method According to the invention there is provided a method of manufacturing a catalyst-coated ion- conducting membrane or a membrane electrode assembly. The method comprises the steps of: providing an ion-conducting membrane comprising a first face and a second face; depositing a catalyst ink onto the first face of the ion-conducting membrane to form a wet catalyst layer, wherein the catalyst ink comprises a solvent, an electrocatalyst dispersed in the solvent, and an ion-conducting polymer or a blend of polymers; and drying the wet catalyst layer to form a dried catalyst layer, wherein the ion-conducting polymer or the blend of polymers has a stress relaxation time of 600 s or less.[French]
L'invention concerne un procédé de fabrication d'une membrane conductrice d'ions revêtue de catalyseur ou d'un ensemble membrane-électrode. Le procédé comprend les étapes consistant à : fournir une membrane conductrice d'ions comprenant une première face et une seconde face ; déposer une encre de catalyseur sur la première face de la membrane conductrice d'ions pour former une couche de catalyseur humide, l'encre de catalyseur comprenant un solvant, un électrocatalyseur dispersé dans le solvant, et un polymère conducteur d'ions ou un mélange de polymères ; et sécher la couche de catalyseur humide pour former une couche de catalyseur séchée, le polymère conducteur d'ions ou le mélange de polymères ayant un temps de relaxation de contrainte inférieur ou égal à 600 s.