Big ‘Green’? IBM works on 500-mile-per-charge battery

An electric car that can go from Boston to Detroit on a single charge could hit showroom floors sometime in the next decade, if all continues to go smoothly for IBM.

Yes, IBM. The company, best known these days for its trivia-champ computer Watson, is making a risky bet on the development of lithium-air battery technology in a bid to accelerate adoption of electric vehicles.