Flexible PET/EVA-based piezoelectret generator for energy harvesting in harsh environments
Abstract
Stable and repeatable operation is paramount for practical and extensive applications of all energy harvesters. Herein, we develop a new type of flexible piezoelectret generator, which converts mechanical energy into electricity consistently even under harsh environments. Specifically, the generator, with piezoelectric coefficient (d33) reaching ~ 6300 pC/N, had worked stably for continuous ~ 90000 cycles, and the generator pressed by a human hand produced load peak current and power up to ~ 29.6 μA and ~ 0.444mW, respectively. Moreover, the capability to steadily produce electrical power under extreme moisture and temperature up to 70°C had been achieved for possible applications in wearable devices and flexible electronics.
- Publication:
-
Nano Energy
- Pub Date:
- July 2017
- DOI:
- 10.1016/j.nanoen.2017.05.034
- Bibcode:
- 2017NEne...37..268Z
- Keywords:
-
- Mechanical energy;
- Flexible generator;
- Harsh environment;
- Piezoelectret