Method for preparing fuel cell membrane electrode

Method for preparing fuel cell membrane electrode -- New energy -- YMUS ultrasonic spraying

Fuel cell is a high-efficiency power generation device that converts the chemical energy in fuel (such as hydrogen, natural gas, etc.) and oxidizer directly into electrical energy by electrochemical reaction without combustion. It is the fourth power generation method after hydropower, thermal power generation, and chemical power generation.

Fuel cells generally include Proton Exchange Membrane Fuel Cell (PEMFC), Phosphoric Acid fuel Cell (Phosphoric Acid Fuel Cell), PAFC, Alkaline Fuel Cell (AFC), Solid Oxide Fuel Cell (SOFC), and Molten CarbonateFuel Cell (MCFC). Among them, the proton exchange Membrane fuel cell mainly includes Membrane ElectrodeAssembly (MEA), bipolar plate and sealing element. Membrane electrode assembly is the core component of electrochemical reaction, it is composed of anode and cathode porous gas diffusion electrode and electrolyte diaphragm, the two sides of the electrolyte diaphragm are respectively hydrogen oxidation reaction and oxygen reduction reaction, electrons through the external circuit to do work, the reaction product is water.

Advantages of ultrasonic spraying technology for preparing fuel cell membrane electrode coatings Advantages:

● Uniformity: Ultrasonic spraying technology can achieve better coating uniformity. By adjusting spraying parameters, such as spray distance, spray speed and spray power, the coating with high uniformity can be obtained. This is critical for the catalyst layer of fuel cell membrane electrodes, which can improve the dispersion of the catalyst and enhance the electrochemical performance.

● High efficiency: Ultrasonic spraying technology is simple to operate, fast spraying speed, and can complete the coating preparation process in a short time. Compared with traditional coating methods, ultrasonic spraying can improve production efficiency and reduce production costs.

● Control: Ultrasonic spraying technology can achieve precise control of the thickness and quality of the coating. By adjusting spraying parameters, such as spraying speed and spraying power, the coating can be precisely controlled to meet specific research and application needs.

● Adhesion: Ultrasonic spraying technology can achieve better coating adhesion. Through appropriate surface treatment methods and parameters, such as carbon paper surface treatment and curing treatment before and after spraying, the adhesion between the coating and the substrate can be enhanced, and the stability and durability of the coating can be improved.

● Wide applicability: Ultrasonic spraying technology can be applied to various types of substrate materials, including carbon paper, metal substrate and ceramic substrate. This wide applicability makes it an effective method for preparing membrane electrode coatings for fuel cells.