Fully casted soft power generating triboelectric shoe insole

Power generating soft triboelectric based shoe insole fully elastomeric and compatible with large-scale fabrication technique has been developed. During the process, film casting and stencil printing techniques were implemented to deposit/pattern elastomeric and soft/flexible materials, such as, polydimethylsiloxane (PDMS) and polyurethane (PU). Carbon-based elastomeric materials were used as electrodes, which were also film casted. The developed triboelectric generator (TENG) was capable of harnessing electrical power effectively from mechanical deformation of the system during walking or running activities. The performance of the device was tested for walking with frequency of 0.9 +/- 0.2 Hz. The power (rms value) of 0.25 mW was achieved for load resistance of 100 M Omega, which corresponded to the power density (rms value) of 1.9 mu W/cm(2).