869
Samsung’s 20-year-life EV battery runs 600 miles on 9-minute charge
(interestingengineering.com)
This is a most excellent place for technology news and articles.
The weight matters too. EVs are notoriously heavy. You have to haul around the batteries whether they are full or not.
"However, due to their high production costs, these batteries’ initial application will be limited to the “super premium” EV segment."
Solid state batteries are more energy dense, meaning that if all you want is 300 miles of range on a charge (perfectly fine with it's faster charging), then you can have less battery for the same range. Now how much lighter I'm not sure, but it's in the right direction!