Fabrication Method for MEA for Fuel Cells

Next-generation fuel cells, electrolyzers, and metal-air batteries aim to meet the often conflicting demands of high-performance, low-cost, and long life through the use of advanced materials (catalysts, membranes, gas diffusion media (GDM)) optimized for targeted operating conditions. At the heart of the PEMFC is a membrane electrode assembly (MEA) that is comprised of catalyst layers (CLs), a polymer electrolyte membrane (PEM). The micrometer-thick cathode and anode CLs on opposing sides of the PEM together form the catalyst-coated membrane (CCM). The CL structure contains a continuous network of ionomer and catalyst (e.g., Pt/carbon) in contact with the PEM to promote proton transport between the PEM and catalyst; the CL must also contain a through-connected pore network to facilitate mass transport of reactant gases to the catalyst and expulsion of product water from the CL.

Cheersonic has developed coating processes that prvide excellent results with durable, pinhole-free coatings. And because the equipment has the advantage of extremely high liquid utilization, it can greatly reduce research and production costs. UAM4000L is a tabletop system often used in R&D or low volume production for coating Proton Exchange Membrances (PEMs) or other electrolyte materials with metal catalyst inks. These ultra thin materials require several layers of coating to achieve necessary weight gain of inks without deformation of the delicate membranes.

1.Very high Platinum utilization proven in MEA fabrication; as high as 90%.
2.Non-clogging
3.Low-flow spray reduces spillage and air pollution.
4.Continuous or intermittent operation possible
5.Highly porous coatings are extremely durable, preventing cracking or peeling of catalyst layer.
6.No moving parts to wear out
7.Minimal maintenance and downtime.
8.Robust design and materials resist corrosion.
9.Ultrasonic energy disperses the agglomerated particles, producing a homogeneous coating.

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

Chinese Website: Cheersonic Provides Professional Coating Solutions