Yes, your calculations are correct. I was just wondering if we use all of that Li to store energy or we need it in car batteries, laptops, mobile phones, etc. Y

Yes, your calculations are correct. I was just wondering if we use all of that Li to store energy or we need it in car batteries, laptops, mobile phones, etc. You also leave out details about the production of batteries. Purely from the energy point of view you are right but what about the manufacturing and maintenance point of view? Would not be there some additional limitations?