> Isn't Tesla claiming world-record energy density for their new 2170 cell? But they are cylindrical and don't pack together as well as pouch cells. Tesla actually uses the gaps to run water-cooling pipes through, so it actually works for them, but it would be bulkier than our batteries if packed together without the cooling pipes.
They may have world record density for a thermally managed system. Yeah they have wiggly channels every few columns of cells with circulating coolant.
> I think it would still be lighter than ours, though.
Nah, our potting and mylar is nothing compared to steel cladding every cell plus pipes and liquid coolant.