I'll believe it when I can
I'll believe it when I can buy it. Promises of advances in battery tech have a long history of producing nothing. If it does come to pass, we won't be seeing many 1000-mile range batteries. Maybe 400 miles tops for some cars. The batteries would still need to be charged, and charging takes a long time. Much more likely would be a smaller battery, hopefully costing less, that would give sufficient range. I also wonder about global silver supplies. Battery tech relying on silver would drive up demand for limited supplies, driving up the cost of silver and hence the battery as a whole -- another reason to keep the battery smaller. Solar panels have gotten cheaper primarily by the reducing the amount of silver used. Reducing battery degradation would be good benefit. What we really need is a good-enough battery made with abundant and cheap materials. That would be a great advance.