Tesla wins China approval to build Model 3 vehicles with LFP batteries: ministry - Reuters This goes a long way to makung EV's less expensive than in ICE. .
I'm sure will know more on battery day. I'm surprised it hasn't at least been scheduled yet. I expect to hear any day.
LFP generally has longer cycle life, but is lower specific energy(energy per volume). These will just be in the standard range Model 3. Not enough space to use them in the long range one.
Even as an "I'm definitely not buying a Tesla any time soon" sort of person...I'm really looking forward to battery day!