Fuel cells are divided into low-temperature fuel cells and high-temperature
fuel cells according to their operating temperature. The operating temperature of low-temperature fuel cells is between 50 °C and 200 °C. Low-temperature fuel cells such as the hydrogen-oxygen fuel cell PEMCF are suitable for mobile use in electric vehicles. In addition to the PEM fuel cell, there are also the direct methanol fuel cell (DMFC), the alkaline fuel cell (AFC), the direct boron hydride fuel cell (DBFC) and the phosphoric acid fuel cell
(PAFC), which, however, operates at a much higher operating temperature.