The new device is a miniature thermoelectric generator, it is completely recyclable,
Miniature thermoelectric generator consists ofelastic polyethylene amine, in which thin thermoelectric chips are embedded. They are connected to each other using liquid metal. It is also completely recyclable and does not require recharging from the mains.
The gadget is attached to a finger or wrist: the prototype of the device was presented in two forms - a ring and a bracelet.
Photo: Xiao Lab
While jogging or exercising, your bodyheats up, and this heat is radiated into the cool air around you. Thermoelectric generators are in close contact with the human body and can utilize heat that would normally be dissipated into the environment.
Xiao Jianliang, research leader, associate professor of the Department of Mechanical Engineering
The authors estimate that a bracelet-shaped thermogenerator on the wrist of a person taking a brisk walk can generate about 5 volts of electricity - more than the batteries of many watches.
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