Related Experiment Video
Updated: Apr 25, 2026

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
Published on: March 13, 2017
An Ion Pump Enhanced High-Current-Density Moisture-electric Yarn.
Guoqing Chen1, Yunhao Hu1, Zhouquan Sun1
1State Key Laboratory for Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, P. R. China.
Researchers developed a novel moisture-electric yarn (MEY) for efficient energy harvesting. This yarn generates high current density from ambient moisture, powering wearable electronics and offering a sustainable power source.
Area of Science:
- Materials Science
- Energy Harvesting
- Nanotechnology
Background:
- Moisture-electric generators (MEGs) are promising for clean energy but suffer from low current densities and poor integration with wearables.
- Existing MEGs face limitations in ion concentration and migration, hindering electrical output and practical application.
Purpose of the Study:
- To design a moisture-electric yarn (MEY) with enhanced current density and continuous power generation capabilities.
- To overcome the limitations of conventional MEGs for direct integration into wearable systems.
Main Methods:
- Development of a moisture-electric yarn (MEY) incorporating an ion pump strategy.
- Facilitation of ion concentration gradients and enhanced ion migration rates to boost electrical output.
- Scalable continuous fabrication process for producing long MEYs.
Main Results:
- The MEY achieves a continuous output of ~1 V and a high current density of 5.7 mA cm-3 under ambient conditions (25 °C, 60% RH).
- Output current scales with yarn length, reaching 4.3 mA for a 1 m MEY.
- A 2 m MEY successfully powered LED strips by harvesting atmospheric and body moisture.
Conclusions:
- The developed MEY offers a high-performance, lightweight, and sewable solution for clean energy harvesting.
- This technology provides a safe, eco-friendly auxiliary power source for wearable electronics and real-time positioning.
- The MEY demonstrates significant potential for advancing sustainable power solutions in portable and wearable applications.
More Related Videos
09:16High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning
Published on: July 10, 2018
08:28Vapor Phase Deposition of Electroactive Poly(3,4-ethylenedioxythiophene) onto Electrospun Commodity Polymer Nanofibers
Published on: March 7, 2025
Related Concept Videos
Van de Graaff Generator
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Induced Electric Fields
Induced Electric Fields: Applications
Drying Shrinkage
A portion of this drying shrinkage can be reversed; if the concrete is...
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Energy Stored In A Coaxial Cable
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field...