Flexible Skin Worn Electricity Generator Powered by Sweat

Engineers at the University of California, San Diego have developed what they claim is by far the most powerful wearable fuel cells that run on sweat and produce enough electricity to energize small components such as LEDs and Bluetooth radios.

The stretchable devices stick to the skin and conform to its movements, maintaining the ability to generate electricity with a voltage of .5 V and a power density of 1.2 mW cm−2 at 0.2 V. A person riding a standing exercise bike was able to light up an LED from a small patch stuck to the skin, while in a lab test the device was subjected to strains of 50% for two days without diminishing in performance.

The technology required coming up with a way to screen-print cathode and anode arrays made of carbon nanotubes and creating a biofuel cell.

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Mike Rawson

Mike Rawson has recently re-awoken a long-standing interest in robots and our automated future. He lives in London with a single android - a temperamental vacuum cleaner - but is looking forward to getting more cyborgs soon.

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Flexible Skin Worn Electricity Generator Powered by Sweat

by Mike Rawson time to read: 1 min
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