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Scientists Have Developed A Self-Sustainable Wearable Device, Called Wearable Microgrid, Capable Of Harvesting Energy From Sweat And Body Movement To Power Small Electronics Quickly And Continuously. The Washable Wearable Device Comprises 1) Sweat-Powered Biofuel Cells, 2) Motion-Powered Devices And 3) Energy-Storing Supercapacitors.

A self-sustainable wearable multi-modular E-textile bioenergy microgrid system | Nature Communications

https://www.nature.com/articles/s41467-021-21701-7

Though energy-harvesting wearable systems have been reported in the literature, their system design imposes limitations that hinder their overall performance. Here, the authors report a system-level wearable e-textile microgrid system that relies solely on human activity for energy harvesting.