This Reddit comment contends
There was 870 tons of lithium mined in 2019 in the US. That enough for under 20,000 cars, assuming you're using ~50 kg per car. So that would be 40,000 in 2023, assuming all of it is used in cars. In reality only a fraction is; most is used in consumer electronics etc.
The global car production is about 100,000,000 per year, meaning you'd need like 5,000,000 tons of lithium just for cars. Current WORLD production is 77,000 tons, although there's a large reserve.
Proliferation of electric cars is, as far as I can see, completely dependent on a large step forward in battery tech.
What exactly does there's a large reserve entail? How much Li does the "large reserve" contain?
Are these calculations correct?