Advanced triboelectric nanogenerator with multi-mode energy harvesting and anti-impact properties for smart glove and wearable e-textile

摘要

Environmental hazardous stimuli including strong electromagnetic field and impact force were always harmful to human beings.Developing functional triboelectric nanogenerator (TENG) with universally harvesting various energy and anti-impact effect may be an effective strategy to collect energy as well as protect human beings from danger.Thus,a miniaturized all-in-one TENG with high structural durability,anti-impact and multi-mode harvesting energy from compression,swaying and magnetic field was developed by assembling shear thickening fluid (STF) and magneto-sensitive films.TENG yielded maximum power density of 27.05 mW/m~2 with the voltage of 10.40 V at 10 MΩ under compression.It also sensed and collected tiny STF flowing energy under noncontact mode.Besides,high magnetic-sensitive effect endowed TENG with magnetic dependent programmable shapes which enabled it to harvest non-contact rubbing/deformation energy.More importantly,the device with STF exhibited high anti-impact properties which could resist and dissipate harsh collision force from 1390 N to 409 N,demonstrating excellent safeguarding properties for TENG and human wearers.This versatile device also showed reliable sensing properties to various external magnetic field,human motions,contacted materials and impact forces.In addition,a wearable TENG-based smart glove as a self-powered functional sensor presented the ability of precisely mapping finger joints.Finally,newly-designed Kevlar/TENG-based e-textile arrays with 95 impact-force dissipating and multi-fields display performance was proposed.Thus,this work opened a new perspective for the development of functional TENGs as wearable electronic devices in universally energyscavenging and safeguarding areas.