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A Fully Transient Mechanical Energy Harvester

A Fully Transient Mechanical Energy Harvester Here, a novel design of a mechanical energy harvester combining peak power output competitive with state‐of‐the‐art energy harvester devices is reported, but with a design enabling full transience, or dissolution, of the harvester after 30 min upon triggering in basic water. The harvester incorporates a symmetric cell combining LixAl alloy electrodes and polyvinyl alcohol packaging that harvests mechanical energy due to the mechanical–electrochemical stress coupling between the electrodes. Prototype harvester devices demonstrate peak output power of 0.208 µW cm−2 with continuous energy generation up to 1.76 µJ cm−2 at a mechanical input frequency of 0.1 Hz. This work introduces a new class of power systems simultaneously tailored for transience, high‐performance energy harvesting, and operation frequency relevant to wearable technologies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Materials Technologies Wiley

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References (36)

Publisher
Wiley
Copyright
© 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
eISSN
2365-709X
DOI
10.1002/admt.201800083
Publisher site
See Article on Publisher Site

Abstract

Here, a novel design of a mechanical energy harvester combining peak power output competitive with state‐of‐the‐art energy harvester devices is reported, but with a design enabling full transience, or dissolution, of the harvester after 30 min upon triggering in basic water. The harvester incorporates a symmetric cell combining LixAl alloy electrodes and polyvinyl alcohol packaging that harvests mechanical energy due to the mechanical–electrochemical stress coupling between the electrodes. Prototype harvester devices demonstrate peak output power of 0.208 µW cm−2 with continuous energy generation up to 1.76 µJ cm−2 at a mechanical input frequency of 0.1 Hz. This work introduces a new class of power systems simultaneously tailored for transience, high‐performance energy harvesting, and operation frequency relevant to wearable technologies.

Journal

Advanced Materials TechnologiesWiley

Published: Aug 1, 2018

Keywords: ; ; ; ;

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