Increasing the number of plug-in electric vehicles on America’s roads can help reduce our dependence on petroleum, improving our economic, environmental, and energy security. But without research undertaken at Argonne National Laboratory, supported by EERE’s Vehicle Technologies Office (VTO), PEVs may have had a very different, slower introduction to the market. Today, batteries in both the Chevrolet Volt and the Ford Focus EV use technology that was originally developed at Argonne.