using H2 fuel cell in EV conversion

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RGr
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using H2 fuel cell in EV conversion

Post by RGr »

Hello,
has anyone done anything on using H2 fuel cell in EV conversions? do you know any opensource projects or repos on github e.g, controlling Toyota Mirai fuel cell, or its powertrain? such parts are today relatively easy available (partly because of low density of H2 filling stations, availability of H2 and its price), so perhaps you come across such projects either in EV or stationary installations.
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arber333
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Re: using H2 fuel cell in EV conversion

Post by arber333 »

RGr wrote: ↑Thu Oct 09, 2025 8:23 pm Hello,
has anyone done anything on using H2 fuel cell in EV conversions? ....
I wouldn't recommend that kind of project to an ordinary Joe. it is full of hazards and H2 can go bang...
Earth atmosphere with O2 is not a good pace for H2 cells use...

I would rather recommend you look at methanol fuel cells. I read they are available for purchase in Austria.
Methanol is liquid...much safer for.DIY... also I remember a package for about 3kw output was 70kg...
I need to find the links...

EDIT: found it...
https://www.methanol.org/wp-content/upl ... tation.pdf
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eee291
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Re: using H2 fuel cell in EV conversion

Post by eee291 »

I looked up what something like this costs
https://www.bukh-bremen.de/strom/brenns ... -158000022
75w for €5k 😭

I can make a 10kwh range extender for my EV for €500 or less.
With the remaining money you can buy like 2 leafs or other EVs.
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DVD3500
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Re: using H2 fuel cell in EV conversion

Post by DVD3500 »

Can we stay pragmatic and ask where would you possibly get the hydrogen?
Also, if you do find it, the cost is likely going to make the project completely impractical unless it is being done purely as a thought experiment...

I don't want to thread-drift but I read this morning about efforts to manufacturer "greener" cars buy using "greener" steel which, guess what, needs green hydrogen to be carbon neutral...
I found that hilarious as and very sad at once ...
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ianlighting
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Re: using H2 fuel cell in EV conversion

Post by ianlighting »

You can’t just rock up to a h2 filling station (assuming you find one open somewhere) with a jerry can to fill up to take back to your garage. It’ll be 350 or 700 bar. I don’t think dealing with those pressures is very safe for a diy project. Or do you have experience with this stuff already?
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