Transparent Batteries

How Do You Make the Electric Batteries Transparent?
The answer to transparency of electric batteries is in packaging and not in electrodes. Electrodes can be made thin, really thin: smaller than fifty microns in diameter. When the electrodes are thin enough to become invisible to the naked eye the weight shifts on packaging. The choice of Stanford University researchers fell on Polydimethylsiloxane, a clear, soft, rubbery polymer used in contact lenses and plastic surgery. Transparent batteries packaged in Polydimethylsiloxane exceed 60 percent transparency rate. Since the experiment is at the early stage, the efficiency of new battery is compared to the one of a nickel-cadmium battery - not poor performance at all for the start. Who can say at this moment where it all is going to go, but we can be certain that there is some room under the sun for the flexible and transparent electronics in not so remote future.
Today, however, the main task of research teams is to increase the amount of energy stored by transparent batteries without sacrificing the transparency.