75kg?? Where are you getting that figure? Most common figure is around 160 grams of lithium metal per kWh (you can do better, as the theoretical minimum is half

75kg?? Where are you getting that figure? Most common figure is around 160 grams of lithium metal per kWh (you can do better, as the theoretical minimum is half that, and some DO do better). Base Model 3 is around 60kWh (giving it about a 250 mile range), so just under 10kg per car, so even your 130kT/year gives us 13 million cars per year. Obviously we're not going to be mining a whole bunch more lithium than we currently use. This is obvious, so saying that if we use more lithium we'll need to mine more lithium is just a tautology and is no useful insight at all!