This definitely sounds like something out of a futuristic movie - spray on charge! Sounds like something the Dark Knight (Batman) would use to super charge his bat vehicles.Leave it to scientists from Rice University who have developed a liquid spray that does just that. Scientists have invented something that changes lithium-ion battery materials such as aluminum and copper into a form of liquid spray. With a squirt of this spray you can power up everything from cell phones to electric cars.

According to Forbes in one experiment, they "spray painted" nine ceramic tiles with the liquid and were able to charge 40 LEDs for over six hours. The negative about this battery spray is it's rather expensive, potentially hazardous and won't be on store shelves for a while. So I guess we'll have to stick to the energizer bunny for the time being.

Take a look from YouTube.