Have you read the linked-to article at all?
The plane is a prototypical research object of
EADS, which is the largest corporation of pan-European aerospace and defense industries.
As the article stated, the plane will probably be used as unmanned drones (UAVs) manufactured in series. The prototype is good enough to hold the plane in the air for 30 minutes, which is sufficient for most military applications.
The article also stated that knowledge gained from the project will be used in hybrid military helicopters (hybrid electrical / combustion engine).
Experience from such developments can and will be used for civil air travel as well, one day, that's for sure.
Battery improvements are always being worked on. Especially in the US, there are projects for high-yield, fast-charge batteries, and even nuclear batteries. In some years, the battery problem will simply disappear.