Towards Integrated Flexible Energy Harvester and Supercapacitor for Self-powered Wearable Sensors
Paper i proceeding, 2020

We present the first results of a flexible energy harvester and a foldable supercapacitor to power wearable and flexible sensors. The flexible energy harvester is fabricated by using 38 mu m piezoelectric polyvinylidene difluoride (PVDF) sandwiched between carbon electrodes. Both the design and process excel in simplicity and cost-effectiveness. The flexible harvester demonstrates a power output of 2.6 mu W cm(-3) at a resonant frequency of 50 Hz with a 3dB bandwidth of about 11 Hz, which is higher than devices previously reported and similar to a commercial PZT harvester film of same size. A flexible energy storage supercapacitor (GP-SC) was fabricated using a graphite/VACNTs (vertically aligned carbon nanotubes) material as electrodes. A prototype GP-SCs has an areal capacitance of about 1.2 mF cm(-2). Finally, an integrated scheme is proposed for future work.

Författare

Agin Vyas

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Qi Li

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

R. van den Eeckhoudt

Student vid Chalmers

G. Gereb

RISE Research Institutes of Sweden

Anderson David Smith

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

C. Rusu

RISE Research Institutes of Sweden

Per Lundgren

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Peter Enoksson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

2019 19TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS)

19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (Power MEMS)
Krakow, Poland,

Ämneskategorier

Textil-, gummi- och polymermaterial

Energisystem

Annan elektroteknik och elektronik

DOI

10.1109/PowerMEMS49317.2019.008

Mer information

Senast uppdaterat

2020-11-30