KANSAS CITY, Mo. -- Graham Goodman, a 33-year-old chemist, bought a used all-electric Nissan Leaf last fall in preparation for a tightening budget and growing family. In May, he stepped out of the hospital where he had just visited his wife and newborn to unplug his car from its charging station and go home. Electric vehicle drivers like Goodman are far from common in this Midwestern city. But that's starting to change. Charging stations are popping up everywhere here.