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As has been the case with battery technology, portable hydrogen technology will evolve. Here’s an example of relatively recent progress on using hydrogen released from the reaction between aluminum and water. The concept isn’t new, and the slow walk of it is an example of alternatives to electric/battery being sidelined as a carbon replacement.

https://energy.mit.edu/news/using-aluminum-and-water-to-make-clean-hydrogen-fuel-when-and-where-its-needed/

Low Information Voter 2y ago

Much better - no hydrogen stored, generated as needed. Mature technology too - replaced the Otto II fuel in NATO torpedoes in the '70s, I believe.

Energy density is low but acceptable for marine use where water is everywhere and free.

On land, forget it, even lead-acid has better power density than aluminium-water.

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