I’ll wait until they know what the life of that battery is before getting excited.
“I’ll wait until they know what the life of that battery is before getting excited.”
They have shown SOH aka capacity retention curves for 1C and 5C they are into the 100,000 cycles range.
Given that existing sodium Prussian Blue cells have demonstrated 50,000 cycles and those are with liquid electrolyte which degrades over time.
These sodium solid state cells would have little to degrade. Most batteries fail from either the anode or.cathode getting damaged at the atomic level from.cramming ions in and out or the electrolytes degrade and breakdown from heat and age. Solid state cell eliminate the latter and without having to be bathed in acidic or basic fluids under heat and pressure the anode and cathode is in much more friendly environment. No shock that a solid state sodium cell could do 100,000 cycles to it’s 80% SOH and “end of service life”
There is a while market for second life cells once cells reach 80% SOH they are pulled form service in an EV pack. Those cells get grouped by internal ohms of resistance so they will charge balance and turned into powerwalls where they do another 3000+ cycles down to 50% SOH and then they go to Redwood Inc to be shredded into black mass and the lithium, nickel and cobalt recovered. Fun fact Redwood is run by former Tesla battery engineers who unsurprisingly recycle EOL lithium cells. They take any cell not just EV they have a mail in program for any cell, former power tools, laptops, phones, tablets. They are the largest domestic source of battery chemicals in the USA right now. You import them or you ask nicely for redwood to sell you some.