Catalyst layers of membrane-electrode assemblies and methods of making same
US12212007B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 27, 2021 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Mar 20, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Improved catalyst layers for use in fuel cell membrane electrode assemblies, and methods for making such catalyst layers, are provided. Catalyst layers can comprise structured units of catalyst, catalyst support, and ionomer. The structured units can provide for more efficient electrical energy production and/or increased lifespan of fuel cells utilizing such membrane electrode assemblies. Catalyst layers can be directly deposited on exchange membranes, such as proton exchange membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.