There have been various groups researching the energetic potential of sugar for use as batteries, but it is Sony who has developed a biological battery powered by sugar. Unlike other similar batteries, Sony says it has accomplished the world's highest power output for passive-type bio batteries. By using carbohydrates and enzymes to create power the battery attained a power output of 50 milliwatts enough to control music play back on a memory-type Walkman. Sony explained the mechanism- new cathode structure efficiently supplies oxygen to the electrode while making certain that the appropriate water content is maintained. Optimizing the electrolyte for these two technologies has enabled these power output levels to be reached.

The new battery was exhibited at the 234th American Chemical Society National Meeting & Exposition in Boston, MA USA, last Wednesday. However Sony has yet not mention it plans on putting this new battery on the market.
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