Design of Metglas/polyvinylidene fluoride magnetoeletric laminates for energy harvesting from power cords

We describe energy harvesting from power cords using flexible magnetoelectric (ME) laminate. ME laminate consisted of Metglas magnetostrictive layer and polyvinylidene fluoride (PVDF) piezoelectric layers in sandwich configuration. Laminates of different lengths were wrapped around the power cords in two ways: on the outer layer of cord and on the inner layer of the cord obtained by peeling-off the outer layer. It was found that the laminate provided ∼16mV higher output voltage when wrapped around the inner layer of cord. An output voltage of 303mV was obtained from flexible energy harvester with 267mm in length wrapped around the inner layer of power cord.