Fuel cell electric vehicles using hydrogen and oxygen in the air under the action of catalyst hitches in a fuel cell electrochemical reaction to produce electricity， and as the main source of power drive car.Fuel cell electric vehicle is in essence a kind of electric cars, in body， power transmission system, control system, etc., the fuel cell electric vehicle and general electric car basic same, the main difference is that the principle of power battery is different。 Generally speaking， the fuel cell is through electrochemical reactions convert chemical energy into electricity, electrochemical reaction required reductant with hydrogen， oxygen oxidant is used， so the earliest development of fuel cell electric vehicle is more directly using hydrogen fuel, hydrogen storage can use liquefied hydrogen, compressed hydrogen or metal hydride hydrogen storage, etc.Pure fuel cell car fuel cell is only a source of power, the car all the echo power of fuel cell。 At present, a lot of fuel cell vehicles driven by mixed form, on the basis of the fuel cell, increases a set of battery or super capacitor as another source of power. The main structure: energy control unit， air compressor， fuel cell stack， high pressure hydrogen storage bottle, power battery and motor. High pressure hydrogen storage bottle provided with fuel， and outside of the power supply， power battery for car acceleration, climbing and running at a high speed. Slide on the vehicle， the energy control unit will drive motor into generator, which will be part of the vehicle kinetic energy into electrical energy to power the battery. That is to say after using hybrid form, not only can use smaller power battery system, can also be ...
