How do fuel cell electric vehicles work using hydrogen?

How does a fuel cell make electricity from hydrogen?

Hydrogen fuel cells produce electricity by combining hydrogen and oxygen atoms. The hydrogen reacts with oxygen across an electrochemical cell similar to that of a battery to produce electricity, water, and small amounts of heat. Many different types of fuel cells are available for a wide range of applications.

How does a hydrogen fuel cell charge?

Hydrogen-powered vehicles don’t need charging like a Battery-Electric car. You refuel them with hydrogen gas, pumped in the same safe and convenient way you would a conventional petrol or diesel car. Filling up takes the same amount of time too, between 3-5 minutes for a full tank.

Why are hydrogen engines a bad idea?

The biggest reason why hydrogen-combustion engines are no good? They create nitrogen oxide, which isn’t good for people or the environment. Even though carbon isn’t part of the hydrogen combustion process, NOx isn’t a compromise as automakers look to zero-emission vehicles.

What are the disadvantages of hydrogen fuel cells?

What are the Disadvantages of Hydrogen Fuel Cells?

  • Hydrogen Extraction. …
  • Investment is Required. …
  • Cost of Raw Materials. …
  • Regulatory Issues. …
  • Overall Cost. …
  • Hydrogen Storage. …
  • Infrastructure. …
  • Highly Flammable.
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How long does a hydrogen fuel cell last?

The fuel cell stacks are designed to last the lifetime of the vehicle, about 150,000–200,000 miles. At the end of its lifespan, the fuel cell will be disassembled and the materials recycled, similar to what happens with vehicle components today.

Why hydrogen is not used as a fuel?

Hydrogen has the highest calorific value so it can be considered as the best fuel but it is highly inflammable so it is diificult to store, transport and handle so it is used as a fuel only where it is absolutely necessary.

Can hydrogen be used to generate electricity?

Hydrogen is an energy carrier, not an energy source and can deliver or store a tremendous amount of energy. Hydrogen can be used in fuel cells to generate electricity, or power and heat.

Which is better hydrogen or electric cars?

The main advantage of hydrogen cars is that they produce no emissions at the tailpipe – just water. This benefit is the same as with a normal electric car, and puts both at the forefront of emission-cutting tech in the automotive world.

Will hydrogen cars replace electric?

Because hydrogen doesn’t occur naturally, it has to be extracted, then compressed in fuel tanks. It then has to mix with oxygen in a fuel cell stack to create electricity to power the car’s motors. … That’s true to an extent, but hydrogen-powered cars are not expected to replace EVs.