GDL Within PEMFCs

GDL Within PEMFCs – Ultrasonic Spray Coater – Cheersonic

Proton exchange membrane fuel cells (PEMFCs) have been spotlighted as prospective renewable energy sources because of several advantages: high efficiency, no pollution, and promptness in recharging. Currently, the major issues regarding PEMFCs are reliability and stable performance achievement at various extreme operating conditions. Since water is indispensable to the PEMFC, the freezing of water in very cold conditions could cause some major problems. The GDL constitutes a porous medium in which reactant gas diffuses from the flow-channel to the catalyst layer and simultaneously water is transported from the catalyst layer to the flowchannel. As a key part of the fuel cell, the coating of the catalytic layer is crucial.

Cheersonic’s ultrasonic equipment is suitable for spraying catalyst solutions containing carbon black ink suspension, platinum slurry and other precious metal solutions. From R&D to production, our non-clogging technology results in greater control of coating attributes, significant reduction in materials usage, and reduced maintenance and downtime. It can prepare fuel cell proton exchange membrane with excellent performance. It integrates multiple systems such as ultrasonic, dispersion, carrier gas, liquid, heating station, vacuum adsorption, and exhaust emission control. 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.

The advantages of Cheersonic’s ultrasonic equipment include：

1.Capable of coating PEMs with very small liquid sample sizes (only 10ml of catalyst solution necessary to coat multiple PEMs). Ideal for R&D phase.
2.Ultra-low flow rate capabilities
3.The spray beam is highly controllable for reliable and consistent results.
4.Significantly reduced machine downtime for maintenance
5.Spraying proton exchange membrane with high uniformity and good adhesion
6.Heating plate, vacuum plate or combination of heating plate and vacuum plate
7.Non-clogging atomized spray that does not deviate.