Fuel cell is a new type of energy technology that directly converts the chemical energy of fuel into electrical energy through electrochemical reactions and is not restricted by region or geographical conditions. . In recent years, fuel cells have made great progress. ptfe proton exchange membrane has also been widely used.
Membrane electrode assemblies (MEA) are the core components of proton exchange membrane fuel cells. They are mainly composed of proton exchange membranes and catalysts. , frame and gas diffusion layer, generally a seven-layer superimposed structure. The electrochemical reaction that releases energy occurs on this component, so its performance, lifespan and cost are directly related to the rapid commercialization of fuel cells.
Fuel cells operate similarly to batteries. As long as hydrogen and oxygen are continuously supplied, the fuel cell can continue to generate electricity. A proton exchange membrane (PEM) fuel cell consists of two thin porous electrodes forming the anode and cathode, separated by a solid polymer separator electrolyte. One side of each electrode is plated with a catalyst, which is mainly composed of platinum.
As a key component of fuel cells and electrolyzers, proton exchange membranes need to have good proton conductivity. The current mainstream proton exchange membrane solution is the perfluorosulfonic acid proton exchange membrane, which is composed of a fluorocarbon main chain and an ether branch chain with a sulfonic acid group. The advantages of the perfluorosulfonic acid proton membrane are high mechanical strength, good chemical stability, high electrical conductivity, high current density at low temperatures, and low proton conduction resistance; but the disadvantage is that the proton conductivity becomes worse as the temperature increases, and chemical degradation is prone to occur , the cost is also higher.
The currently independently developed ptfe proton exchange membrane is the supporting base membrane of the MEA proton exchange membrane. Its good mechanical strength and uniform pore size and porosity ensure good performance of the fuel cell. , plays a key role in the overall performance and service life of hydrogen fuel cells. ptfe proton exchange membrane technology has always been the core of the business and plays an indispensable role in biopharmaceuticals, equipment, food and beverages, semiconductor manufacturing processes, communications and other fields. If you are interested, please enter the store for consultation.
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