This story, from researchers at Rice University and Lockheed Martin.
Their goal is to increase our ability to store lithium ions in anode material for batteries, by using porous silicon instead of the more usual graphite substrate.
Lithium, the lightest metallic element, has a tremendous potential as a battery component because of its unique physical and chemical properties.
The researchers claim that their new technology stores ten times more lithium ions in the anode as current batteries.
Details here.
If this project succeeds in all its goals then electric vehicles, with reasonable range, are much closer to practical realization. Electric cars could be powered by renewable electric power from solar or wind generators.
This could help to end our dependence on oil imports, eliminating a large part of our temptation to pursue foreign wars, as well as reducing the environmental impact of the fossil fuel used in transport.