Research on Outdoor all-Weather Portable Power Generation Devices

Harvesting energy from the ubiquitous water cycle has emerged as a promising power generation technology. This study develops a sustainable high-performance all-weather textile-based power generation device inspired by plant transpiration, achieving efficient and durable electrical output through moisture absorption-evaporation cycles. The device comprises three heterogeneous layers: a hygroscopic layer (LiCl-doped cellulose nonwoven fabric), a transport layer (polyacrylonitrile nanofibers), and an evaporation layer (poly (vinylidene fluoride-co-trifluoroethylene) nanofibers). Experimental results demonstrate the textile’s exceptional environmental adaptability, delivering 0.38 V from a single 3 cm × 2 cm unit under 40% humidity and 25 °C conditions, while exhibiting lightweight, flexible, and sewable properties. The power units can directly supply outdoor electronic devices like smartphones through series/parallel connections and enable all-weather energy harvesting when integrated into clothing. This research establishes a novel paradigm for low-energy sustainable power technologies, showing significant application potential in self-powered systems for remote areas or harsh environments.