Bio-Physicochemical Dual Energy Harvesting Fabrics for Self-Sustainable Smart Electronic Suits

摘要

Despite the rapid development of various wearable generators to harvestenergy from human activity, they are limited to single or intermittent powergeneration. Here, stretchable and washable energy harvesting fabric isreported, which enables biomechanical and biochemical generation throughco-weaving triboelectric generator (TEG) and perspiration electric generator(PEG)-based fibers. The two energy harvesting approaches can workindividually or simultaneously, thereby combating humidity and increasingthe electrical output. The maximum output power density of TEG- andPEG-based fibers can achieve 166 and 5.4 μW cm~（?2）, respectively. Thewoven-structured patch-type energy harvester is conformable with clothing. Itcan harvest energy from human movements and sweat to drive the wearableInternet of Things (IoT) without charging systems. This synergistic andcomplementary energy harvester can provide a viable standalone powersource relying solely on human activity for wearable electronics.