You can power charge to your Google glass, smartwatch and smart phones by your body heat. New research said that tiny generator can produce power from the heat emanating from human body.

A team of researchers have proposed a solution by a developing a glass fabric-based thermoelecric (TE) generator that is produce power from the heat of human body. it is so flexible that the allowable bending radius of the generator is as low as 20mm.

“There are no changes in performance even if the generator bends upward and downward for up to 120 cycles,” claimed Byung Jin Cho, a professor of electrical engineering at KAIST (formerly also known as Korea Advanced Institute of Science and Technology) in South Korea.


“The TE generator has a self-sustaining structure, eliminating thick external substrates (usually made of ceramic or alumina) that hold inorganic TE materials,” Cho explained.

Till date, two types of TE generators has been developed based either on organic or inorganic materials. The organic-based TE generators made by polymers that are highly flexible and compatible with human skin, ideal for wearable electronics. Inorganic-based TE generators produce a high electrical energy.

“The glass fabric itself serves as the upper and lower substrates of a TE generator, keeping the inorganic TE materials in between. This is quite a revolutionary approach to design a generator,” Cho noted.


This flexible, light and high-performance TE generator has further applications in scale-up systems such as automobiles, factories, aircrafts, and vessels where we see abundant thermal energy being wasted, the researchers concluded in a paper published in the journal Energy & Environmental Science.

The project is still in its infancy but hopefully it will be developed and marketed in the next three years, to be integrated in future into the gadgets like smartphones, watches, heart rate sensors or controllers video games.