Tesla has been working on new EV batteries, shortly to be released. "The milllion mile battery"

It is hard to tell from various news which new technology is about to be released:

Li-ion with new electrodes and chemistry. (most likely)

or

LFP, LiFePo4, Lithium Iron Phosphate.

https://www.popularmechanics.com/cars/hybrid-electric/a32576671/elon-musk-tesla-million-mile-battery/

https://www.afr.com/technology/tesla-s-new-batteries-set-to-make-evs-as-cheap-as-petrol-cars-20200518-p54tue