A Wearable All‐Fabric Thermoelectric Generator

• DOI: 10.1002/admt.201800615
• Publication Date: 2019-01-23T14:39:40Z
• Authors: Linden K. Allison; Trisha L. Andrew
• Keywords: Thermopile; Thermoelectric generator

Abstract Wearable thermoelectric generators are a promising energy source for powering activity trackers and portable health monitors. However, known iterations of wearable have large form factors, contain expensive or toxic materials with low elemental abundance, quickly reach thermal equilibrium human body, meaning that power can only be generated over short period wear. Here, an all‐fabric thermopile is created by vapor printing persistently p ‐doped poly(3,4‐ethylenedioxythiophene) (PEDOT‐Cl) onto commercial cotton this integrated into specially designed, band generates thermovoltages >20 mV when worn on the hand. It shown reactive coating process creates mechanically rugged fabric thermopiles yield notably high factors at temperature differentials, as compared to solution‐processed counterparts. Further, best practices naturally integrating garments described, which allow significant gradients maintained across despite continuous