WO2025017296 - METHOD OF PREPARING A CATALYST LAYER
National phase entry:
Publication Number
WO/2025/017296
Publication Date
23.01.2025
International Application No.
PCT/GB2024/051857
International Filing Date
17.07.2024
Title **
[English]
METHOD OF PREPARING A CATALYST LAYER
[French]
PROCÉDÉ DE PRÉPARATION D'UNE COUCHE DE CATALYSEUR
Applicants **
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITED
Inventors
EDGAR, Jonathan Andrew
FONGALLAND, Dharshini Chryshantha
Priority Data
2310961.4
18.07.2023
GB
Application details
| Total Number of Claims/PCT | * |
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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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| 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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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2316 | |
| EPO | Filing, Examination, Granting | 13245 | |
| Japan | Filing, Examination, Granting | 2471 | |
| South Korea | Filing, Examination, Granting | 2677 | |
| USA | Filing, Examination, Granting | 5740 |
Total:
26,449
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
According to the invention there is a method of preparing a catalyst layer for a fuel cell or an electrolyser. The method comprises the steps of: (i) providing a donor substrate having opposing first and second surfaces and providing a catalyst ink disposed as a layer on the second surface, wherein the catalyst ink comprises an electrocatalyst, an ion-conducting polymer, and a solvent; (ii) providing an acceptor substrate, wherein the second surface of the donor substrate faces towards the acceptor substrate; and (iii) irradiating the catalyst ink with laser radiation at a wavelength which is absorbed by the catalyst ink so as to transfer the catalyst ink from the donor substrate to the acceptor substrate.[French]
L'invention concerne un procédé de préparation d'une couche de catalyseur pour une pile à combustible ou un électrolyseur. Le procédé comprend les étapes consistant à : (i) utiliser un substrat donneur ayant des première et seconde surfaces opposées et utiliser une encre catalytique disposée sous la forme d'une couche sur la seconde surface, l'encre catalytique comprenant un électrocatalyseur, un polymère conducteur d'ions et un solvant ; (ii) utiliser un substrat accepteur, la seconde surface du substrat donneur étant tournée vers le substrat accepteur ; et (iii) exposer l'encre catalytique à un rayonnement laser à une longueur d'onde qui est absorbée par l'encre catalytique de façon à transférer l'encre catalytique du substrat donneur au substrat accepteur.