Fuel cell electric powertrains.
Mature and futuristic.
Fuel cell cars are technically electric vehicles that create their own electricity from oxygen and hydrogen. Hyundai was first in mass-producing fuel-cell vehicles and continues to be a leader in sustainable motoring technology.
The heart of an FCEV.
Fuel cell systems that generate the electricity needed to drive are also called a ‘tertiary battery’. To convert thermal energy into electrical energy the system needs four parts: a fuel cell stack, a fuel processing system, an air processing system, and a thermal management system.
1. The fuel cell stack.
This is where the chemical reaction between stored hydrogen and atmospheric oxygen takes place. Fuel cell stacks consist of hundreds of cells, and each cell consists of an electrolyte membrane, separator and catalyst, a fuel electrode and an air electrode.
2. The fuel processing system.
Here, hydrogen is safely transferred from the high-pressure hydrogen tanks to the low-pressure fuel cell stack.
3. The air processing system.
The oxygen necessary to react with the hydrogen is drawn from the atmosphere. To keep the fuel cell stack free from pollutants, the indrawn air passes through a purification system that cleans it of any particulates. This is why FCEVs leave cleaner air behind.
4. The thermal management system.
High heat would curb the optimal performance and lifespan of the fuel cell stack. The thermal management system prevents the electrolyte membrane from being exposed to such high temperatures.
Safe and reliable.
Our hydrogen tanks are made of carbon fibre reinforced plastics, and the inner surface consists of a thin polyamide liner (nylon). Our engineers put great efforts into building reliable high-pressure hydrogen storage. With meticulous testing, they achieved maximum safety for Hyundai FCEV.
A motor then converts the electricity produced in the fuel cell stacks and stored in the high-voltage battery to kinetic energy. Just like in hybrid and battery electric cars, a regenerative braking system moves electricity back to the battery when the driver uses the brakes, improving fuel economy.