Naxtra(sodium) is a C-rate of 5c meaning it charge charges 5-10x faster than current mass production lithium ion batterieswhich range from 0.5c-1c. That said LFP (lithium iron phosphate) has a C-rate of 12c. These are all ideal conditions so I suspect they will run at a lower C-rate to conserve the battery's life, on second thought they probably won't, these thing could have a service life of hundreds of years if managed at 80% of max so they will probably be overtuned to get the fastest charge possible and burn out ASAP production is cheaper meaning sale price will be lower or stagnant and sales will be immense at first but unless that price stays down and falls they will hit market cap in 8 years or so unless they convince every energy company on earth to buy huge batteries this competing with that Dutch thorium company for a new energy market dynamic could be a big deal.

Get the price down fast enough solar costs are gonna drop too because how much of a no brainer this makes solar, even in britain solar would make sense with this tech for the individual household. Hell it makes sense from china to sudan now. Arabs are ten years out from some real financial issues I think.

Hmm can you have a bank of caps charge that in seconds then let them charge the batteries?