Tetrafluoro emulsions are mainly used in supercapacitors. It is a new type of energy storage device between traditional capacitors and batteries. It has the advantages of high specific power, good reversibility and long cycle life.
A tetrafluoroemulsion is typically used to meet transient high power requirements to compensate for the lack of high current discharge in the battery. Today's supercapacitors are generally water-based, one is environmentally friendly, high-capacity, one is low-cost, and process control is relatively simple. The active material, the conductive agent, the binder, the thickener (CMC) and the 60% PTFE emulsion were mixed and applied directly to the foamed nickel. It is better to add 60% polytetrafluoroethylene emulsion to the two components.
The tetrafluoro emulsion is a dispersion of polytetrafluoroethylene which is polymerized into an aqueous dispersion having a solid content of about 60% of polytetrafluoroethylene and stabilized by a nonionic surfactant. It has excellent heat resistance, cold resistance and wear resistance, as well as excellent electrical insulation properties, independent of temperature and frequency. In addition, it also has the characteristics of non-sticking, non-absorption, non-combustion, etc., and fibrosis occurs after high temperature. The formed network structure can uniformly coat the active material, and the effect is good. In the repeated oxygen release state of the positive electrode, the antioxidant effect is good.