[aerohead]

According to the May,2019,National Geographic Magazine,the world estimated deposits (terrestrial) for lithium is 53-million metric tonnes,or
116,865,000,000-pounds.
It would be enough for 834,750,000 Tesla Model S cars.
If streamlined to Cd 0.12,you could build 939,093,750 Model S's.
Or if you made shorter range cars with just half the capacity,you could do 1,669,500,000 model S's.
1,878,187,500 streamlined models S's.
At 2017 global car production levels,this would be 22-years of production.
And then there's the world's oceans.
Presently,the following countries have proven lithium deposits,either in brine or hard rock:
Argentina
Australia
Belgium
Bolivia
Canada
Chile
China
Congo
Czechia
Germany
Mali
Mexico
Portugal
Russia
Serbia
Spain
USA
Zimbabwe
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Sodium is presently undergoing R&D as a battery technology.
Same for Graphene,a single atomic thickness form of graphite,which is said to be infinitely cyclable,and totally recyclable.