Researchers in Sweden report that they are closing in on a way to replace batteries for wearables and low-power applications in the internet of things (IoT). The answer lies in an ink coating that enables low-grade heat, which is generated by devices, to be converted to electrical power.
Publishing in Applied Materials & Interfaces (“Thermoelectric Inks and Power Factor Tunability in Hybrid Films through All Solution Process”), the researchers from KTH Royal Institute of Technology in Stockholm report that they have developed a promising blend of thermoelectric coating for devices that generate heat amounting to less than 100 °C.
A piece of film is coated in thermoelectric ink. (Image: KTH The Royal Institute of Technology)
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