Research supported by the Energy Department is pushing the limits of energy density and cost for lithium-ion batteries, while also exploring even more advanced battery concepts such as lithium-air, lithium-sulfur, and a whole class of metal-air batteries. We are still in the early days of this work, but we are seeing some promising results.
Overall, the Department of Energy is partnering with industry to reduce the manufacturing cost of advanced batteries. While a typical battery for a plug-in hybrid electric vehicle with a 40-mile electric range cost $12,000 in 2008, we’re on track to demonstrate technology by 2015 that would reduce the cost to $3,600. And last year, we set a goal of demonstrating technology by 2020 that would further reduce the cost to $1,500 – an accomplishment that could help spur the mass-market adoption of electric vehicles.