Since it’s solid hydrogen I think it’s to be expected, however I didn’t see any information regarding energy losses which I imagine would be quite high when you have those kinds of cooling requirements.
This is why I hate marketing pushes. If they’re a good-faith business, the efficiency needs to be within shooting distance of reasonable against costs. But as we learned from the artificial meat industry (that ultimately admitted we’ve already probably reached lifetime price/quality/scale limits from the methodologies they’re using) brutal honesty doesn’t get you investors.
Sounds very fishy to me. They’re clearly not making normal solid hydrogen, so achieving impressive energy densities like becomes very very difficult. You have to stuff that hydrogen into the lattice of another material, which obviously has mass and takes lots of space. That approach can’t be good for energy density.
Hmm, if that’s correct, that’s even higher than liquid hydrogen, which would be really impressive.
Edit: Looks like their gravimetric energy density is 3.5kWh/kg
Edit 2: here’s a comparison for batteries
Since it’s solid hydrogen I think it’s to be expected, however I didn’t see any information regarding energy losses which I imagine would be quite high when you have those kinds of cooling requirements.
This is why I hate marketing pushes. If they’re a good-faith business, the efficiency needs to be within shooting distance of reasonable against costs. But as we learned from the artificial meat industry (that ultimately admitted we’ve already probably reached lifetime price/quality/scale limits from the methodologies they’re using) brutal honesty doesn’t get you investors.
Sounds very fishy to me. They’re clearly not making normal solid hydrogen, so achieving impressive energy densities like becomes very very difficult. You have to stuff that hydrogen into the lattice of another material, which obviously has mass and takes lots of space. That approach can’t be good for energy density.