Ultrasonic Coating of Gas Diffusion Layers

Ultrasonic Coating of Gas Diffusion Layers – Cheersonic

Gas diffusion layers (GDLs), are important sub-components in PEMFC membrane electrode assemblies. The GDL, with its porous nature, plays an essential role in assisting the hydrogen oxidation and oxygen reduction reactions in the catalyst layers (anode and cathode) by allowing the reactants (hydrogen and oxygen/air) to diffuse from the flow field channels (on the flow field plates) to the active sites on the electrocatalyst. The GDL also facilitates water management in the catalyst layer and the polymeric proton exchange membrane, by allowing water vapor together with the reactants to diffuse out to ensure sufficient humidification for the PEM. The GDL is an electrically conducting medium that transfers electrons between the catalyst layer and the flow field or bipolar plates.

Cheersonic ultrasonic coating systems produce highly durable, uniform, coatings of carbon-based catalyst inks onto both fuel cell and electrolysis processes for proton exchange membrane (PEM) electrolyzers such as Nafion, without deformation of the membrane. Cheersonic’s line of XYZ motion ultrasonic coating systems offer unique options. They are ideal for Solar and Fuel Cell manufacturing as well as research and development coatings in different environments, from fully inert to high temperature needs or rotational Z-axis for rod-shaped substrates.Due to the characteristics of controllable film thickness and high uniformity, the durability and conductivity of the film electrode can be greatly improved.

Advantages of Cheersonic ultrasonic coating systems 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.

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