backtop


Print 18 comment(s) - last by sld.. on Sep 2 at 3:08 PM


Bio-battery cells (left) power the Walkman  (Source: Sony Corp.)
Sony is making a sweet battery technology -- literally

Sugar is a common substance we use to flavor our foods, which our bodies convert into usable energy. Sony must have figured that sugar may also be able to power some of its electronic devices, as the company has announced the development of a battery technology that generates electricity from carbohydrates utilizing enzymes as its catalyst.

The system developed by Sony generates energy from the breakdown of sugars by “immobilizing enzymes and the mediator (electronic conduction materials) while retaining the activity of the enzymes at the anode.”

Sony also said that it developed a new cathode structure which efficiently supplies oxygen to the electrode while ensuring that the appropriate water content is maintained. The careful optimization of the electrolyte for these two technologies has enabled test cells of this bio-battery to achieve power output of 50 mW – which Sony claims is currently the world's highest level for passive batteries of its kind.

The bio-battery cells measure a cubed 39mm with a volume of 40cc and generate enough power to run a Sony Walkman digital music player. It may be a while before such battery technology would be ready for the consumer market, as the current bio-battery cells are larger than the devices they can power.

Researchers elsewhere have also been investigating alternative ways to power electronics. Earlier this month, researchers from the Fraunhofer Institute were able to construct a method of turning body heat into electricity using the same principal as thermoelectric generators (TEG) made from semi-conductor elements.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: They are big but
By JonB on 8/31/2007 10:56:47 AM , Rating: 2
What? You want to postulate a methane lifeform? Acetylene?

Photosynthesis is king on this planet! Long live the Krebs Cycle!


RE: They are big but
By sld on 9/2/2007 3:04:25 PM , Rating: 2
Calvin cycle, C4 cycle and CAM, you mean?


"Google fired a shot heard 'round the world, and now a second American company has answered the call to defend the rights of the Chinese people." -- Rep. Christopher H. Smith (R-N.J.)

Related Articles













botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki