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Data from: Transcutaneous ultrasound energy harvesting using capacitive triboelectric technology

Citation

Hinchet, Ronan et al. (2020), Data from: Transcutaneous ultrasound energy harvesting using capacitive triboelectric technology, Dryad, Dataset, https://doi.org/10.5061/dryad.8pm4nv0

Abstract

A major challenge for implantable medical systems is the inclusion or reliable delivery of electrical power. We use ultrasound to deliver mechanical energy through skin and liquids, and demonstrate a thin implantable vibrating triboelectric generator able to effectively harvest it. The ultrasound can induce the micrometer scale displacement of a polymer thin membrane to generate electrical energy through contact electrification. We recharge a Li-ion battery at a rate of 166 μC/s in water. The voltage and current generated in-vivo by ultrasound-energy transfer reached 6 V and 550 µA in a dog. It shows that capacitive triboelectric electret is the first technology able to compete with piezoelectricity to harvest ultrasound in-vivo and power medical implants.

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