Researchers at the North Carolina State University in the United States have invented a "rechargeable patch" that can easily convert the body's heat into electricity.
It is only 2 mm thick and can be folded freely. The bottom layer is a heat-conducting material that fits snugly against the skin and is covered with a layer of polymeric material to prevent heat loss.
Such a structure can "force" heat through the temperature difference generator therein, thereby converting heat into electrical energy.
Dalushi Q. Vashay, who was involved in the study writing, said that the purpose of inventing such a charging sticker is to provide a steady stream of electricity to the health monitoring equipment, "let these devices get rid of battery limits."
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