In labs around the globe, scientists are working on radical technologies, from 500-mile car batteries to solar space farms. The holy grail in the electric-car world is beating range anxiety: the fear you’ll run out of juice in the middle of nowhere. Today’s electrics, like the Nissan Leaf, have a range of about 100 miles, but scientists at IBM are in hot pursuit of a better technology. In the 1990s researchers hypothesized that they could create energy by combining lithium with oxygen, making what is now referred to as a lithium-air battery. Today IBM and some 50 other labs globally are working on versions that would let an electric car go 500 miles a charge — a potential game changer for models like BMW’s i3 concept vehicle. This article is a linkout.