So why not just change the bloody batteries...!!
I had an electric car when I was a kid. I'd run it round and round the carpet and then, when it stopped, instead of plugging it into the mains to charge, I'd just take the old batteries out and put in a new set of HP7's!
So why this nonsensical assertion that you need to recharge the battery *IN* the car? All that is needed is simple bit of cooperation between the car manufacturers to pick a standard battery format/ layout, drive up to the garage, park in the right place and mechanical systems unplug the old battery (which is taken away for recharging), plug a new charged one in and away you go!
Charging up your battery "at the pump" makes as much sense as refining petrol at the garage!