Spray painted batteries

[Mike]

Researchers at Rice university have developed a paintable battery which is made up of a series of thinly painted layers, the end result is a lithium-ion battery that loses hardly any charge after 60 full charge/discharges and provides a steady 2.4v.

At the moment it appears that the chemicals are too toxic to be used outdoors but once this is further developed there should be solar power applications.

All in all an exciting new development. Here is a short YouTube video from Mashable describing it.