The vast majority of their cars sold in China use CATL batteries, Tesla batteries are limited to the high end models (for now). CATL scaled much faster than Te

The vast majority of their cars sold in China use CATL batteries, Tesla batteries are limited to the high end models (for now). CATL scaled much faster than Tesla - the company was founded in 2011, and they are now the leader in battery production with >30% of production. They are still increasing production. They managed to double their battery production from 10GWh/year to >20GWh between 2016 and 2018. CATL is on track this year to produce around 140GWh of batteries, which will mean that their highest producing factory has to produce more than 35GWh. Tesla says they can produce 500k Model3/Y battery packs per year at Giga Nevada which at a generous 75kWh/pack means they may, in theory, match the smallest possible biggest factory from CATL. In reality what this means is that Giga Nevada is not the world's biggest battery plant - it's the world's biggest battery plant from plants which publish their precise production rates, but nonetheless at best #2.