Magnetic force driven noncontact electromagnetic-triboelectric hybrid nanogenerator for scavenging biomechanical energy

A magnetic force driven noncontact EM-TE hybrid nanogenerator for scavenging biomechanical energy was designed and fabricated to build up a self-powered system. The hybrid generator integrates one contact-separation mode TENG and one EMG. By creatively employing a magnetic Fe3O4 nanoparticles (NPs) embedded PVDF fibers membrane as triboelectric layer, the TENG can be triggered non-contactly by external magnetic field. Based on the hybrid nanogenerator, a wearable self-powered system was developed to scavenge biomechanical energy from human movement when a human carry a magnet to do daily movement naturally. The designed hybrid nanogenerator opens an effective and sustainable approach to harvest biomechanical energy for powering wearable electronics.236