Up to three times the energy density of conventional 2D batteries, they claimed.
They don't have that charging speed.
Would be nice if every one of them fails to live up to their promises. But Prieto is claiming the manufacturing is simple and cost effective.
I have no information about that, but I suppose scaling up should not be too difficult judging by what others are doing to ESS.
The key thing is they got it right at the cell level. Not an SME, but neither do I think it is a difficult technology to master. I guess it is mostly about engineering that requires only existing technology.