Device that can harvest energy from your arm

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New York, Sep 2 (IANS) A wearable energy-harvesting device could generate energy from the swing of an arm while walking or jogging, say researchers.

The device, about the size of a wristwatch, produces enough power to run a personal health monitoring system, reported the team from Pennsylvania State University and the University of Utah.

“The devices we make using our optimised materials run somewhere between 5 and 50 times better than anything else that’s been reported,” said Susan Trolier-McKinstry, the Steward S. Flaschen Professor of Materials Science and Engineering and Electrical Engineering from Penn State.

Energy-harvesting devices are in high demand to power the millions of devices that make up the Internet of Things (IoT).

By providing continuous power to a rechargeable battery or supercapacitor, energy harvesters can reduce the labour cost of changing out batteries when they fail and keep dead batteries out of landfills.

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According to the researchers, they can double the power output using the cold sintering process – a low-temperature synthesis technology developed at Penn State.

In addition, the researchers are working on adding a magnetic component to the current mechanical harvester to scavenge energy over a larger portion of the day when there is no physical activity, said the study published in the journal Advanced Functional Materials.



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