Bio batteries store small amounts of energy from organic bio compounds. They can form the bridge across to micro-electric circuits. This technology could be a lifesaver in remote hospitals when it powers electronic equipment. Since every life is precious, we welcome ongoing bio battery research.
Very Short Description How Bio Batteries Work
Enzymes produce electrons and protons when they break down glucose in our bodies. When bio batteries adopt this process, they create energy for future use. Most plants and animals create their own energy this way. Thus at least in theory, free electricity is available all around us.
How Binghamton University Created Bio Batteries on Paper
Researchers at Binghamton University, State University of New York produced their first paper bio batteries in 2015. Last month they followed up on this with a fresh innovation. Our elevator hardly stops on their floor but we will do our best to explain.
- They assembled their battery on chromatography paper normally used for separating colored chemicals
- Then they placed a ribbon of silver nitrate on one half covered over with a thin layer of wax as the cathode.
- They formed the positive anode on the remaining half out of conductive polymer with a bonded structure
- When they folded the paper across in the middle they had a simple battery, with the paper acting as the electrolyte
Finally, they added a few drops of bacteria-rich liquid. Almost unbelievably, the microbes’ cellular respiration powered the battery!
https://www.youtube.com/watch?v=kMDYcyVUpAI
There is Usable Power in the Binghamton Paper Battery
The scientists were able to produce 44.85 microwatts at 105.89 micro amps. This should be sufficient for biosensors detecting pathogens in bodies, and monitoring glucose levels in diabetes patients. “We are excited,” the researchers say. “Micro-organisms can harvest electrical power from any type of biodegradable source, like wastewater, for bio batteries.”
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Preview Image: Field Hospital
