The BIGGEST problem with clean energy

The supply of lithium WON'T RUN OUT by 2080 or EVER because it's the third most abundant element in the universe after hydrogen and helium and it's extremely abundant in seawater.  Right now we mine old salt deposits for it but when that runs out we just need to create evaporation ponds, evaporate seawater, the various salts deposit in layers, mine the lithium salts out of those respective layers.