A cell phone battery made from paper: although this sounds strange, a team of researchers at Stanford University in California, it is now, but actually succeeded in creating such a battery.

The current memory is manufactured from normal printer paper, whose surface with tiny carbon nanotubes covered – all these tubes is about 10,000 times thinner than a human hair. The tubes store electrical charge as the electrodes in a conventional battery, while the paper serves as an insulator.

The paper battery is of course very easy. Unlike a normal mobile phone battery paper battery can be bent arbitrarily and even cropped. Small problem: Because of the high cost price of the nanotubes is the production of the battery is currently extremely expensive – a production on a large scale is excluded for the time being.