Less important than all this, cheap, less or non toxic materials reign supreme. Sodium Ion is likely they way to go, and the Chinese solved that problem already and are moving forward.
There's a threshold of reasonably good , usefulness for personal transport. At 200 miles ( way less for dense cities) you are well into it, even if it takes 1 hour to charge. No one is going to die from waiting 1 hour every 200 miles or so, 180 whatever.
This toyota thing is pure bs unless its made from cheap, less toxic, less dangerous metals.
At some point perhaps cars should have a small battery pack, like 50 miles or so, with the ability to plug in standarized large packs, for fast change and range expansion. You would not own that battery but pay for the power, rent it for a fee and such. Could be a modular pack, which you can buy the car with just one module something like this. The time is coming to make these logical decisions. China is absolutely number one in EVs, perhaps they should come up with the model of this. Well they can always modify things for export in countries that do not want logic.
Having most of the capacity of the battery being an empty spot, will also allow battery improvement to be separated from the car themselves.
