[Fee]

I don’t think there is enough lithium mines to produce enough lithium metal for the rechargeable batteries. Minor oversight in high tech concepts, it is called industrial revolution logistics.

[wbill]

I've read some interesting articles about improving the watt density of batteries using carbon foam. I think that in theory the logic is sound. No idea about the chemistry behind it, though.

Still and all, the same problems remain - how to MAKE the electricity.... not enough is manufactured, currently, to support even a small fraction of cars on the road..... and how to safely and rapidly GET the electricity to the batteries in the cars.