Methinks there's far more to it than you imply... Reaching the tech to do what you're describing here takes more than just resources; it takes some significant changes in our understanding of Physics.
Let's look at your idea: you want something that can charge an electric car's battery in 10 seconds. Ok; a typical Prius battery is rated at about 4 kWh. That's roughly 15 million Joules of energy. To deliver that much energy in 10 s, you need a power supply that provides 1.5 million watts of power. At the battery voltage (~275 V), that's a current of over 5000 A, or only an order of magnitude less than a typical lightning strike.
Even assuming it's technically feasible to have a superconducting grid (unlikely without high, as in ambient, temperature superconductors), the cable from your power supply to the car battery probably won't be made of the same stuff if it's necessary for a person to manipulate it (eg. connect it to the car that is parked anywhere within a few 10s of centimeters from the supply). If copper wire is used, there is no standard size of wire made that can handle 5 kA for a period of 10 s, and even if you made one it would no longer qualify as "possible for a person to manipulate it".
So: building your superconducting grid itself requires new physics that we don't have yet, not just adequate resources. Even with said grid, charging a battery in the amount of time you suggest deals with extremely high currents that are likely unsafe to use.
I'm not saying your idea is impossible, just pointing out that there is much more to this problem than just a lack of resources.