Porsche's fast-charge power play: The new, all-electric Taycan will come with a mighty thirst. This charging technology will slake it

On the A13 Highway in Germany, a harried mom pulls into a rest stop, her two restless teenagers in the back of the family's electric SUV. She steers toward a row of 24 sleek, refrigerator-size obelisks, most already tethered to a vehicle, and parks in front of the unoccupied one she'd reserved en route. Unhooking the cable, she inserts the plug on its end into a port in the car's rear left flank, behind a flap that resembles the fuel door of earlier decades. She and the teens head to the bathrooms and a warm café for the 15 minutes it'll take to recharge the car.