Generally speaking, materials can be divided into three categories according to their conductivity: conductors, semiconductors and insulators . By definition, a conductor is a material that can conduct electrical current. Electric current is formed by the movement of electric charges. In addition to electrons, the carriers of electric charges also include various types of ions. Conductors that can conduct electrons are called class conductors, while conductors that can conduct ions are called class II conductors. The proton exchange membrane (ptfe proton exchange membrane) is a type II conductor that can conduct protons.
Currently, fuel cells are mainly divided into six categories. Alkaline Fuel Cell (AFC), Phosphorous Acid Fuel Cell (PAFC), Molten Carbonate Fuel Cell (MCFC), Solid Oxide Fuel Cell (SOFC) Cell), proton exchange membrane fuel cell (PEMFC, Proton Exchange Membrane Fuel Cell) and direct methanol fuel cell (DMFC, Direct Methanol Fuel Cell).
ptfe proton exchange membrane is the core component of the fuel cell, simplified Generally speaking, it is a thin film with a thickness of 50~180μm, which is the substrate of the catalyst. An important feature of the proton exchange membrane is that it only allows hydrogen ions to pass through, and does not allow hydrogen gas and electrons to pass through. It is a core component in hydrogen fuel cells. This membrane does not conduct electrons and is an excellent conductor of hydrogen ions. It not only serves as an electrolyte to provide a channel for hydrogen ions, but also serves as a diaphragm to isolate the reaction gases at the two poles. On both sides of the membrane are gas electrodes, which are composed of carbon paper and catalysts. The anode is a hydrogen electrode and the cathode is an oxygen electrode.
ptfe proton exchange membrane is a polymer material produced with the development and advancement of science and technology, using polytetrafluoroethylene The microporous film prepared by mixing, calendering and biaxially stretching ethylene powder has good hydrophobic and breathable properties, with a pore size of 0.1-1μm, and can well block water droplets. Interested parties are welcome to visit the store for consultation and purchase.