What happened to solid state batteries for EVs?

What happened to solid state batteries? They were going to transform electric cars, with full charging times in minutes?

Will an electric car get through floods as well as a petrol or diesel car?

Will an electric car get through floods as well as a petrol or diesel car?

What's the life span of a battery in an EV?

I am becoming more interested in purchasing an electric car and at the age of 72 and a low mileage driver want it to last a long time. I imagine that the battery in an electric car is a lot different from...

Will the batteries of EVs be expensive to replace?

At some point in the future, the batteries on electric cars will need to be replaced. I have yet to see any indication of the cost of this. I expect it to be expensive and must surely impact on the second-hand...