|How Fuel Cells Work
Fuel cells produce electricity that can be used as a clean alternative to gasoline. The V Flow fuel-cell stack in the FCX Clarity FCEV combines hydrogen (H2) stored in a tank with oxygen (O2) from the air to generate electricity. The electricity then powers the electric motor, which in turn ultimately propels the vehicle. Water is the only byproduct.
The distinctive, streamlined design of the FCX Clarity Fuel Cell Electric Vehicle (FCEV) is possible because the compact Honda-developed V Flow fuel-cell stack and other powertrain components are distributed evenly throughout the vehicle. Auxiliary regenerated energy is supplied by a lithium-ion battery pack, increasing the vehicle's efficiency and range.
- Hydrogen fuel is fed into the anode of the fuel cell. Helped by a catalyst, hydrogen atoms are split into electrons and protons
- Electrons are channeled through a circuit to produce electricity
- Protons pass through the polymer electrolyte membrane
- Oxygen (from the air) enters the cathode and combines with the electrons and protons to form water
- Water vapor and heat are released as byproducts of this reaction