We are in the middle of a technological revolution. Machines are producing clean energy more efficiently than ever. Some are even using biological factors such as sweat to produce power. Now, researchers at Binghamton University have manufactured a saliva-powered battery that requires — you guessed it — your spit.
“The proposed battery has competitive advantages over other conventional power solutions because the biological fluid for on-demand battery activation is readily available even in the most resource-constrained settings, and the freeze-drying technology enables long-term storage of cells without degradation or denaturation,”
The bio-battery can create several tens of microwatt-level power for a few minutes — good enough in most cases. Meant for use in remote areas, the gadget could also be life-saving in terms of where light, heat, or communication is needed. Researchers are continuing to develop the device’s power density so it may be applied elsewhere.
“Now, our power density is about a few microwatts per centimetre square. Although 16 microbial fuel cells connected in a series on a single sheet of paper generated desired values of electrical current and voltage to power a light-emitting diode (LED), further power improvement is required for other electronic applications demanding hundreds of milliwatts of energy,”
If this battery is for you, it’s probably time to give those glands a workout!