Explanation

A fuel cell uses an intermediate polymer that conducts protons (H1) as an electrolyte. Sometimes called polymer electrolyte fuel cell or homopolymer polymer fuel cell. The most commonly used intermediate polymer electrolyte is perfluorinated sulfonic acid polymer. Compared with other types of fuel cell, proton exchange membrane fuel cell have the lowest operating temperature, so they are sometimes called low-temperature fuel cell. The output power of proton exchange membrane fuel cell is from several watts to tens of kilowatts, which can be started instantly at room temperature, and the impact of shutdown on its performance is far less than that of other fuel cell with high temperature. Therefore, this kind of fuel cell is the best choice for backup power, portable power and vehicle power supply. Such fuel cell generally use precious metals as catalysts for anode and cathode. Due to the low operating temperature of this type of fuel cell, the catalyst in the electrode is easily poisoned by sulfur compounds and carbon monoxide. In the presence of CO, the anode should use a catalyst with strong poisoning resistance, such as Pt, Ru alloy.

Classification