Performance is equivalent to DuPont MEAs made with Nafion® NR211 membrane
DuPont™ Nafion® XL MEA
DuPont Fuel Cells has introduced DuPont™ XL Membrane Electrode Assemblies based on a new extended-life reinforced membrane that combines the advantages of mechanical reinforcement with enhanced chemical stability, enabling improved membrane durability.
A fundamental understanding of proton exchange membrane degradation has enabled DuPont to develop proprietary technologies that enhance the chemical stability of Nafion® PFSA membranes. The mechanical durability and enhanced chemical stability of MEAs made with Nafion® XL Membrane are the result of an advanced stabilization system that increases mechanical strength and provides resistance to peroxide attack, resulting in improved membrane life and performance.
Building on DuPont catalyst coating expertise, XL MEAs designed to customer’s specifications are now available from DuPont Fuel Cells. The XL MEA designs include both 3-layer membrane electrode assemblies (MEA3) and 5-layer membrane electrode assemblies (MEA5) that add the gas diffusion layer and a perimeter border region.
- Stationary—Remote location and backup power applications
- Transportation—Bus, automotive, and light-duty vehicles
Features
Membrane tensile strength increased by 1.5 times and hydration expansion reduced by 50%, compared to NR211 membrane
Reduction in fluoride emissions by over 40 times, compared to MEAs made with non-reinforced chemically stabilized membrane
Extended MEA lifetime – lasts 20 times longer in demanding load and humidity cycling applications
Recent Presentations
DuPont Next-Generation Membrane and Membrane Electrode Assembly Development
Deepak Perti, Global Technology Manager, DuPont Fuel Cells presentation made in February 2009 at the FC EXPO 2009 in Tokyo, Japan
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