A bio-battery generates electricity from carbohydrates (sugar)
utilizing enzymes as the catalyst, through the application of
power generation principles found in living organisms. The
bio-battery incorporates an anode consisting of sugardigesting
enzymes and mediator, and a cathode comprising
oxygen-reducing enzymes and mediator, either side of a
cellophane separator. The anode extracts electrons and
hydrogen ions from the sugar (glucose) through enzymatic
oxidation as follows:
Glucose→Gluconolactone+2H+ + 2e−
The hydrogen ion migrates to the cathode through the
separator. Once at the cathode, the hydrogen ions and
electrons absorb oxygen from the air to produce