In addition, there are other types of hydrogen-powered vehicles, such as fuel cell hybrid vehicles (FCHV or Hydrogen PHEV), which combine fuel cell technology in an electric car with a lithium-ion battery as an additional source of energy, which can be recharged externally as a plug-in hybrid model.

There are some technologies specific to fuel cell vehicles:

Fuel cell stack module: This is a device capable of transforming chemical energy into electrical energy used to move the vehicle. In each of the cells arranged in series, a “cold combustion” process takes place that converts the energy from the chemical reaction between the hydrogen in the tanks and the oxygen in the air into electricity.

Hydrogen tanks: Hydrogen is stored in tanks at 700 bar pressure, so that it is possible to transport 4 to 5 kilos of it, which translates into an actual range of about 500 kilometres. Due to high storage pressure, and the fact that it is a potentially dangerous material, the tanks are built in advanced materials that offer high resistance and the capacity to absorb impacts.

Battery: This is not exclusive to this type of vehicle, although in this case, in addition to storing the energy generated by the fuel cell and that recovered from deceleration, it reinforces the power of the fuel cell during acceleration in cases of high demand.

Energy control unit: This optimally controls power delivery of the fuel cell under various operating conditions, as well as charging and discharging the battery.

Cathode intake air filtration: The cathode air filter protects the fuel cell from particles and gases contained in the air that can cause damage such as channel blockage or membrane degradation.

Ion exchange filters: The exchangers remove ions to keep the electrical conductivity of the coolant below the permitted limit.