Ultrasonic Fuel Cell Spraying System

The ultrasonic nozzle can spray the catalyst material evenly on the electrode or membrane substrate of the fuel cell. The synthesized catalyst particles are usually in suspension state and need to be treated It is evenly sprayed on the electrode or membrane of the fuel cell. In general, the coating needs to be applied in the form of a continuous thin layer to achieve the required thickness and electrical properties. Current Some spraying methods used include dip coating, air atomizing nozzle, ultrasonic nozzle, screen printing machine and manual brushing.

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Advantages of ultrasonic spray

Precision spraying

The ultrasonic atomizer nozzle can accurately, accurately and evenly coat the catalyst on the fuel cell substrate, so as to minimize the over spray and reduce the waste

To a minimum. Fuel cell catalysts are part of a clean, sustainable energy future. In order to improve the efficiency and reduce the manufacturing cost of hydrogen fuel cells, a lot of efforts are being made. Much attention has been focused on the stack, especially on the catalyst coated membrane and gas diffusion layer. Many coatings are used in the stack, among which

Many coatings need to be applied thinly. If the coating is uniformly covered and there are no defects, the performance of the fuel cell can be improved.

The ultrasonic nozzle can produce a softer and more effective spray, control the shape of the spray pattern, and accurately start and stop the liquid spray, so that it can be produced.

More uniform coating. Ultrasound has been used in many fuel cell related technologies, such as proton exchange membrane (PEM) fuel cell, gas diffusion layer

GDL, solid oxide fuel cell, electrode and electrolyte membrane.

ultrasonic spray system

	Item	Specific
Spray trajectory control	Axis of motion	3Axis (X,Y,Z)
	Maximum spraying area	200×200mm
	Spray dimensional accuracy	＜0.1mm
	Maximum speed of movement	adjustable
	Electrostatic nozzle		Ultrasonic nozzle
Atomization system	Electrostatic voltage	5-15KV	Frequency	50Khz
	Nozzle Material	Titanium alloy core	Nozzle Material	Titanium alloy
	Atomization particle size	30-80μm	Atomization particle size	28μm
Feeding system (injection pump)	Inner Dia of pipe	1mm
	Material of pipe	High permeability silica gel
	Joint material	SUS 316 L
	Flow setting range	0.01~19.9ml/min
	Flow setting accuracy	≤±1.5%
	Maximum spraying quantity (each time)	20ml (0-20ml adjust)
Vacuum heating table	Heating temperature control range	room temperature ~108℃
	Vacuum sucker material	aluminium alloy
	Vacuum cup size	220×220mm
	Horizontal adjustment function	Yes
Vacuum pump	Voltage	220V，50Hz
	Power	160W
	Pumping speed	20L/min
	extreme pressure	≥0.08MPa