... A team at Rice University has made a battery from paint. They created a lithium ion battery which they are able to paint onto virtually any surface.
In tests they combined the battery with a small solar cell and found that the system worked as a perfect energy generating unit. In one test the batteries were even able to power light-emitting diodes that spelled out "RICE" for six hours, with a steady 2.4 volts.
Neelam Singh, the team leader, said that she can already imagine integrating paintable battery technology with paintable solar cells.
They have already filed for a patent, and are now looking to use the technology to create batteries that can be connected together like LEGO and attached to anything.