Hybrid multimodal energy harvester based on magnetoelectric (ME) composites

Magnetoelectric (ME) based energy harvester has been attracting lots of interests due to its high output energy density at resonant frequency. However, the narrow bandwidth of the resonant frequency limits it for practical applications considering the wide frequency range of environmental energy source. This paper presents a hybrid multimodal energy harvester based on Metglas/PMN-PT ME composites. Specifically, the harvester uses 8 layers of Metglas to form a cantilever beam, and three PMN-PT plates are attached to the cantilever beam separately in order to work at different modes. The multimodal behaviors of energy harvester are demonstrated theoretically and experimentally. Such advanced energy harvester holds the promising for the wide frequency environmental energy utilization.

Automated summary

Magnetoelectric (ME) based energy harvester has attracted attention for its high output energy density at resonant frequency, but its narrow bandwidth limits practical applications. This paper presents a hybrid multimodal energy harvester using Metglas/PMN-PT ME composites, which works at different modes by integrating multiple layers of Metglas and three PMN-PT plates on a cantilever beam.