Membrane electrode：MEA (membrane electrode assembly) is the core component of proton exchange membrane fuel cell, which is the place of energy conversion inside the fuel cell. It is composed of proton exchange membrane (PEM), catalyst layer (CL) and gas diffusion layer (GDL) .
Effect：The membrane electrode is responsible for the transport of multiphase substances (including liquid water, hydrogen, oxygen, proton and electron transport) in the fuel cell, and is responsible for the conversion of chemical energy of the fuel hydrogen into electricity through electrochemical reactions. The performance and cost of membrane electrodes affect and even determine the performance, life and cost of PEMFC.
Features：The membrane electrode with high efficient multiphase transmission ability can greatly improve the performance of PEMFC, reduce the auxiliary machine consumption of the reactor system, thereby reducing the reactor cost and improving the reliability of the reactor system.
1. High ion selective permeability. The standard membrane has good selective permeability to anions and cations, and there is also a divalent ion selective permeability membrane, which can separate monovalent ions and multivalent ions
2. Low resistance. The ion exchange membrane has thin thickness, low resistance and low power consumption
3. With support material, high mechanical strength, easy to use
4. Strong chemical stability and long service life. 5. Excellent dimensional stability. Affected by changes in temperature, composition, concentration, etc., the small size changes are small
6. The diffusion coefficient is small. The diffusion movement of solute and solvent is controlled to a minimum value
7. It can separate monovalent ions and multivalent ions. Different types of membranes are selected to separate monovalent ions from multivalent ions in solution.
1. The coating is uniform, the performance is uniform, and the quality is stable
2. High power density
3. High durability and good dimensional stability; 4. Strong environmental adaptability
5. Can provide customized solutions for customers 6. Electrochemical oxidation resistance, low corrosion, good chemical stability
7. Good mechanical properties and long service life
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