Membrane electrode assembly (MEA) for proton exchange membrane electrochemical cell
US11973231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2023 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Jul 6, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A membrane electrode assembly (MEA) includes an ionically-conductive proton exchange membrane. Further, the MEA includes an anode contacting a first side of the membrane. The anode includes an anode gas diffusion layer (GDL). Further, the anode includes a first anode catalyst layer containing first catalyst particles, a hydrophobic polymer bonding agent, and a first ionomer bonding agent that lacks functional chains on a molecular backbone. The anode also includes a second anode catalyst layer containing second catalyst particles and a second ionomer bonding agent that includes functional chains on a molecular backbone. The MEA also includes a cathode contacting a second side of the membrane and comprising third catalyst particles and a cathode GDL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.