Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Magnetic Field Energy Harvesting with a Lead-Free Piezoelectric High Energy Conversion Material

Version 1 : Received: 18 January 2021 / Approved: 19 January 2021 / Online: 19 January 2021 (10:56:47 CET)

A peer-reviewed article of this Preprint also exists.

Wang, Q.; Kim, K.-B.; Woo, S.B.; Sung, T.H. Magnetic Field Energy Harvesting with a Lead-Free Piezoelectric High Energy Conversion Material. Energies 2021, 14, 1346. Wang, Q.; Kim, K.-B.; Woo, S.B.; Sung, T.H. Magnetic Field Energy Harvesting with a Lead-Free Piezoelectric High Energy Conversion Material. Energies 2021, 14, 1346.

Journal reference: Energies 2021, 14, 1346
DOI: 10.3390/en14051346

Abstract

A high-performance Lead-free Piezoelectric Energy Harvester (LPEH) based on a Ba0.85Ca0.15Ti0.90Zr0.10O3 + CuO 0.3 wt% (BCTZC0.3) composite was fabricated by sintering at 1450℃. The BCTZC0.3 composite, which has an enhanced high-energy-conversion constant (〖d_33×g〗_33), shows improved piezoelectric power-generation performance when compared with conventional piezoelectric energy harvesters. The BCTZC0.3-based LPEH produces instantaneous maximum power of 8.2 mW and an energy density of 107.9 mW/cm3 in a weak magnetic field of 250 μT. This energy harvester can be used to charge a capacitor and operate a wireless sensor network (WSN) system to provide temperature sensing and radio-frequency (RF) transmission in a 250 μT magnetic field. The proposed LPEH is a promising green-energy device for potentially self-powering WSN systems when applied.

Subject Areas

Piezoelectric energy harvester; AC magnetic field; Lead-free material; Sustainable energy; High energy conversion

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