Realistically, probably never if “affordable” is also a criteria.
Exactly or should I say probably never in my lifetime. Maybe when/if we see solid state we will start to see those ranges but affordable probably not.
The Tesla 3 LR is said to do 215-430 real world 300 at most.
Then there’s the case I can travel 450 miles on a full tank of fossil fuel, be able to pull in into a gas station to an awaiting pump and be on my way in 5 minutes and is better suited to my lifestyle currently.
Nissans E-power range where they use the engine soley as a generator to charge the battery and not the wheels, is the way to go. Why nissan chose a 1.5 engine to do this I don’t know, but could be worked on I expect. Especially if other manufacturers adopted a similar principle.