Hydrogen vs. Battery Electric Cars | Summary and Q&A

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August 18, 2021
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Hydrogen vs. Battery Electric Cars

TL;DR

Battery-electric vehicles and fuel cell electric vehicles both have their advantages and disadvantages, with battery-electric vehicles being more common and accessible due to infrastructure, while hydrogen-powered vehicles have benefits in terms of range, refueling time, and weight capacity.

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Key Insights

  • πŸš™ Hydrogen fuel cell vehicles have a comparable driving range to battery-electric vehicles, with some models even surpassing battery-electric vehicles in range.
  • πŸš™ Refueling time is significantly faster for hydrogen cars, taking about five minutes compared to hours needed to charge a battery-electric vehicle.
  • πŸš‰ Infrastructure for battery-electric vehicles is more developed, with thousands of charging stations available, while hydrogen refueling stations are scarce.
  • βœ‹ Battery-electric vehicles have higher overall efficiency due to fewer energy losses during conversion and transportation compared to hydrogen fuel cells.
  • πŸ›³οΈ Hydrogen fuel cells have advantages in higher weight capacity and longer ranges for transportation beyond passenger cars, such as trucks, ships, and planes.
  • πŸš™ The development of both battery-electric vehicles and hydrogen fuel cells is crucial for energy diversification and reducing emissions.
  • πŸ‘¨β€πŸ”¬ More research and development are needed to improve the reliability and efficiency of hydrogen refueling stations, and to establish a more comprehensive infrastructure.

Transcript

  • [Goldstein] We have 17,000 trucks. What do you think it would take to take a quarter of those offline and charge them overnight? What would the utility requirements be like? - We are talking about batteries versus hydrogen cars. Hey, I'm Dianna, you're watching Physics Girl. We are back with our renewable energy series. My production team and I w... Read More

Questions & Answers

Q: How does the driving range of battery-electric vehicles compare to hydrogen cars?

Battery-electric vehicles typically have a range of 100 to 200 miles, while hydrogen cars average around 300 miles, with some models going up to 402 miles.

Q: What is the difference in refueling time for battery-electric vehicles and hydrogen cars?

It takes hours to fully charge a battery-electric vehicle, while refueling a hydrogen car only takes about five minutes.

Q: What is the current state of infrastructure for battery-electric vehicles and hydrogen cars?

There are over 5,000 super-charging stations for battery-electric vehicles, while there are only around 45 hydrogen refueling stations in California. Battery-electric vehicles have more extensive infrastructure.

Q: What are the efficiency differences between hydrogen fuel cells and batteries?

Battery-electric vehicles have an overall efficiency of 70-90%, while fuel cells have an efficiency of 25-35%. Batteries have higher efficiency due to fewer energy losses in the conversion and transportation processes.

Summary & Key Takeaways

  • Battery-electric vehicles and hydrogen fuel cell vehicles are both types of electric vehicles, but they have different technologies and characteristics.

  • Battery-electric vehicles have a driving range of 100 to 200 miles, while hydrogen cars have a range of around 300 miles, with some models reaching up to 402 miles.

  • Charging a battery-electric vehicle can take hours, while refueling a hydrogen car only takes about five minutes, but hydrogen refueling stations are much less common compared to electric charging stations.

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