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Key to H2 economy: Toyota portable H2 cartridge
(www.hydrogenfuelnews.com)
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this post was submitted on 25 Oct 2024
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I'm assuming the ebikes they mean would use a fuel cell instead of (or augmenting) a battery. Just a guess, though.
Fuel cells produce electricity, not motion. The electricity is then usually buffered in a small battery, so the fuel cell can produce at optimum efficiency even though the requirements may change quickly. At least that's how the Mirai and other modern H2 vehicles work.
Alternatively, you can simply burn H2 in a motor but that's supposed to be a lot less efficient.
A kinda doubt it. A PEM fuel cell usually has a small amount of very expensive elements (like platinum) so I doubt they would be particularly feasible for something like an ebike.