Researchers at the Jimei University in China have developed a passive device that can generate electricity during the day as well as at night. The device is a thermoelectric generator (TEG) that uses the difference between the temperatures of the surface to generate electricity.
Thermoelectric generators are passive devices that use the heat being emitted from a surface to generate electricity. The technology has been trialed in wearable electronics where it uses body heat or even around heating pipes where it makes use of heat lost to the environment to generate electricity instead.
A multi-disciplinary team of researchers at Jimei University was looking for ways to overcome the inconvenience of batteries that either need replacement or recharging. Moreover, the use of batteries is also unsustainable in the long run and they developed a self-powered thermoelectric generator
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