Energy harvesting device based on a metallic glass/PVDF magnetoelectric laminated composite. (13th May 2015)

• Record Type: Journal Article
• Authors: Lasheras, A; Gutiérrez, J; Reis, S; Sousa, D; Silva, M; Martins, P; Lanceros-Mendez, S; Barandiarán, J M; Shishkin, D A; Potapov, A P
• Is Part Of: Smart materials and structures. Volume 24:Number 6(2015:Jun.)
• Publication Date: 2015-05-13
• Subjects: energy harvesting -- magnetoelectric -- PVDF -- metallic glass -- electromagnetic -- micro power; Smart materials -- Periodicals; Strucural design -- Periodicals; 620.11
• DOI: 10.1088/0964-1726/24/6/065024
• Languages: English
• ISSNs: 0964-1726

Abstract

Abstract: A flexible, low-cost energy-harvesting device based on the magnetoelectric (ME) effect was designed using Fe64 Co17 Si7 B12 as amorphous magnetostrictive ribbons and polyvinylidene fluoride (PVDF) as the piezoelectric element. A 3 cm-long sandwich-type laminated composite was fabricated by gluing the ribbons to the PVDF with an epoxy resin. A voltage multiplier circuit was designed to produce enough voltage to charge a battery. The power output and power density obtained were 6.4 μ W and 1.5 mW cm −3, respectively, at optimum load resistance and measured at the magnetomechanical resonance of the laminate. The effect of the length of the ME laminate on power output was also studied: the power output exhibited decays proportionally with the length of the ME laminate. Nevertheless, good performance was obtained for a 0.5 cm-long device working at 337 KHz within the low radio frequency (LRF) range.