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A comment on Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen. Parent comment

Re:Hyundai Nexo sets new world record 887.5 km travelled on ... by simcop2387 on Tuesday May 18, 2021 @10:08AM (#27194745)
The big problem with hydrogen is just how small it is. It likes to leach through stuff hold just about everything else. You very well might need custom hoses, custom seals, and custom materials for the castings just to safely store it at 10kpsi. It'll leak through solid steel containers that will otherwise hold helium fine.
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Re:Hyundai Nexo sets new world record 887.5 km travelled on ... by HPsquared on Tuesday May 18, 2021 @11:00AM (#27195533)
Even worse than simply leaking, hydrogen can diffuse into the crystal structure of metals and cause havoc with the material properties. It's definitely not as friendly as hydraulic oil.
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Re:Hyundai Nexo sets new world record 887.5 km travelled on ... by jacquesm on Tuesday May 18, 2021 @11:41AM (#27196163)
Exactly. This is a major problem with anything hydrogen related, especially if it has an expected lifespan of a decade+.
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Re:Hyundai Nexo sets new world record 887.5 km travelled on ... by m4rtink on Tuesday May 18, 2021 @12:33PM (#27197163)
And once it gets the thing all brittle and it starts leaking, you won't see it burn as it produces a lot of IR but almost no visible light.
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