how do hydrogen cars work


How They Work. Fuel cell carsFuel cell carsA fuel cell vehicle (FCV) or fuel cell electric vehicle (FCEV) is an electric vehicle that uses a fuel cell, sometimes in combination with a small battery or supercapacitor, to power its onboard electric motor. Fuel cells in vehicles generate electricity generally using oxygen from the air and compressed hydrogen.https://en.wikipedia.org › wiki › Fuel_cell_vehicleFuel cell vehicle - Wikipedia are powered by compressed hydrogen gas that feeds into an onboard fuel cell “stack” that doesn't burn the gas, but instead transforms the fuel's chemical energy into electrical energy. This electricity then powers the car's electric motors.

Do hydrogen cars run on water?

At present, the company no longer claims it can run a car exclusively on water, and is instead marketing "Aquygen" production as a technique to increase fuel efficiency, thus making it Hydrogen fuel enhancement rather than a water-fuelled car.



What do hydrogen cars run on?

Fuel cell cars are powered by compressed hydrogen gas that feeds into an onboard fuel cell “stack” that doesn't burn the gas, but instead transforms the fuel's chemical energy into electrical energy. This electricity then powers the car's electric motors.


Can we fuel cars with water?

Water cannot burn, so the only way to get energy from water is by splitting water into hydrogen and oxygen. The problem in doing this is that the amount of energy required to separate water into constituent elements is more than what you get back when they recombine inside the fuel cell.

What are the disadvantages of hydrogen cars?

High costs for new cars. High depreciation. Charging may be an issue. Lack of infrastructure related to hydrogen cars. Limited selection of vehicles. Technology not mature yet. Large investments in R&D necessary. High fuel costs.

Why is hydrogen not good for cars?

Hydrogen's efficiency problem. The reason why hydrogen is inefficient is because the energy must move from wire to gas to wire in order to power a car. This is sometimes called the energy vector transition.

What are the advantages of hydrogen cars?

Fuel cell electric vehicles (FCEVs) are powered by hydrogen. They are more efficient than conventional internal combustion engine vehicles and produce no tailpipe emissions—they only emit water vapor and warm air.

Are hydrogen cars as fast as electric?

So electric wins on that analysis. Hydrogen wins in terms of speed and range. Fast chargers give you about 80 per cent in 30 minutes, and you get well over 200 miles per full charge. The Mirai gets up to 380 miles and will re-fuel in 3-4 minutes.



Are hydrogen cars faster than electric?

So electric wins on that analysis. Hydrogen wins in terms of speed and range. Fast chargers give you about 80 per cent in 30 minutes, and you get well over 200 miles per full charge. The Mirai gets up to 380 miles and will re-fuel in 3-4 minutes.


Are hydrogen cars more powerful than electric?

A difference between fuel cell and battery noted by BMW is that “the overall efficiency in the power-to-vehicle-drive energy chain is only half the level of [an electric vehicle],” which essentially means that it takes far more energy to power up a hydrogen fuel cell than a lithium-ion battery.

Will hydrogen cars overtake electric?

A new study published in the peer-reviewed journal Nature has confirmed what common sense has made clear for years: Hydrogen fuel cell vehicles aren't likely to catch up to battery-electric vehicles – even for commercial trucks.



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