Fuel cell technology is a nascent technology in automobile sector. As we know, in electrolysis, the electrolyte is split, say water into hydrogen and oxygen. In fuel cell vehicles, the two are combined to produce water and electricity. Electricity is used as fuel to drive the car. The car gets oxygen from the air, and hydrogen from a tank which is to be filled up.

The car can be filled up with hydrogen in 2-3 minutes. It runs longer on full tank of hydrogen, just like petrol filling stations, FCEVs require hydrogen filling stations. Hydrogen is to be produced in sufficient quantity, and in a cost effective manner. India has embarked on hydrogen production under its Hydrogen Policy.

Toyota has developed Mirai, a fuel cell vehicle, for evaluation. It has a real-wheel drive platform. It can store 5.6 kg of hydrogen. It has lithium-ion high voltage battery. It drives like high voltage battery. It drives like an electric car and is exceptionally quiet. It has linear acceleration, since it does not have gears.