We see so many battery electric cars being purchased but very little of hydrogen fuel cell vehicles. What are the reasons?
In: Technology
Ignoring the cost and transport of getting hydrogen to enough locations to fill you car whenever you need. The problem with hydrogen as a fuel is that it’s not dense enough, so you dont have a lot of range.
The other challenge for the density problem is that you need to store as a liquid to have enough, which is at -250°C which is pretty difficult to maintain, then the off gas stores at 5000-10000psi, which again… kinda difficult to maintain as hydrogen is literally smaller than other materials and will leak out of every storage device with enough time.
So to prevent the constant risk of making a pressure vessel bomb from above, hydrogen intentionally leaks out when not in use, so after say 2 weeks of your car sitting in the garage, your fuel tank would be empty…. also your garage would then be full of hydrogen unless theres an opening to let it out so thats not great.
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