Sugar powered Bio Battery from Sony

Sony has developed a biologically friendly battery that generates electricity from sugar in a way that's similar to what's found in living organisms. The battery generates electricity through the use of enzymes that break down carbohydrates, which is essentially sugar.

Sony has increased battery output by efficiently immobilizing enzymes and the electronic conduction materials, while retaining enzyme activity at the anode, an electrode through which positive electric current flows into a polarized device.

Sony also developed a new structure for the cathode, which is an electrode through which positive current flows out of a polarized electrical device. Battery test cells have generated up to 50 milliwatts, or enough electricity to power music playback on a memory-type Walkman.