Application of Ultrasonic Spraying in Electrolyzer Field

Application of Ultrasonic Spraying in Electrolyzer Field

The application of ultrasonic spraying in the electrolyzer field is mainly reflected in improving the uniformity, efficiency and life of the catalyst coating. This technology can accurately spray the catalyst slurry on the electrolyte membrane in an extremely fine mist, achieving double-sided coating and evenly dispersing suspended particles, thereby improving the efficiency of the current collector and the overall performance and reliability of the electrolyzer. It is particularly suitable for green hydrogen production devices such as PEM and alkaline electrolyzers.

Principle

Ultrasonic spraying equipment use piezoelectric transducer to convert electrical energy into longitudinal high-frequency vibrations, creating standing waves in the liquid at the tip of the nozzle. Once the standing wave amplitude reaches a certain level, the liquid separates into uniformly sized droplets from the nozzle tip, achieving atomization. Ultrasonic spraying equipment uses ultrasonic energy to atomize liquid and spray it onto the substrate surface, achieves highly uniform and precise thin-film coatings. Compared to traditional pneumatic spraying, it increases paint utilization several times and achieves greater coating uniformity.

Advantages in Electrolyzer Applications:

· Improved Coating Quality and Adhesion: Ultrasonic spraying produces a highly uniform and adherent catalyst coating, preventing cracking or flaking of the catalyst layer, thereby improving electrolyzer durability.

· Improved Catalyst Utilization: This technology reduces material waste and increases the utilization of expensive catalysts through precise spray patterns and ultra-low flow rates.

· Double-Sided Coating: Ultrasonic spraying equipment enables fully automated double-sided coating and can apply different catalyst formulations to both sides of the membrane.

· Improved Overall Electrolyzer Performance: Precisely controlled coatings help improve conductivity within the electrolyzer, enhance the efficiency and stability of the current collector, and thus enhance overall electrolyzer performance.

· Environmentally Friendly and Efficient: As an advanced surface treatment technology, it is used to coat separators in the hydrogen production process, helping to improve electrolyzer conversion efficiency and is a key technology for green energy production.

Specific Applications:

· PEM Electrolyzer Coating: Suitable for the efficient manufacture of PEM electrolyzers, spraying carbon-based catalyst inks onto the electrolyte membrane. Alkaline electrolyzers: Ultrasonic spraying technology is also suitable for coating alkaline electrolyzers, improving their efficiency and reliability.

Fuel cell coatings: In addition to electrolyzers, ultrasonic spraying technology is also widely used in the manufacture of fuel cell electrodes and electrolyte membranes, improving energy density and lifespan.

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