Sun powered plane - Solar impulse 2

The solar impulse -2 sun powered plane has the capacity of flying 26 hour using the lithium battery backup. The goal of the solar impulse-2 is to fly non stop for more than 120 hours(5 days and 5 nights).

http://economictimes.indiatimes.com/slideshows/nation-world/solar-impulse-2-sun-powered-plane-to-take-a-world-trip/notched-up-a-26-hour-flight-in-2010/slideshow/45776078.cms