But at the Department of Energy's ARPA-E event this week, a dozen or so battery companies and research labs showed off their innovations for batteries for electric vehicles and the power grid, signalling how battery innovation, at least at the prototype level, is alive and well in the US and could even lead the next-generation of transportation and grid tech. In Department of Energy Secretary Steven Chu's speech on Tuesday, he said that battery innovation in the US over the past three or four years has been ``fantastic.''
Battery innovation is alive and well in the US