OK. Give us the retail price of the battery per kilowatt hour.
Bingo!
Cost per kilowatt hour, life expectancy, total cost of ownership, the real deal on numbers.
Worth paying attention to though.
The point, surely, is that we know that the price of lithium is the main driver in the cost of a lithium-ion battery - so much so that it is a very significant driver in the cost of a whole EV. In comparison, sodium is, as I noted, basically one of the forms of dirt. To call it “dirt cheap” is, therefore, hardly a stretch.