An electrifying advance toward tomorrow's power suits

January 20th, 2010 in Nanotechnology / Nanomaterials
Fabrics treated with this new electrically-conductive ink may power a new generation of futuristic clothing that charges iPods, cell phones and other electronics. Credit: American Chemical Society


Fabrics treated with this new electrically-conductive ink may power a new generation of futuristic clothing that charges iPods, cell phones and other electronics. Credit: American Chemical Society

Could powering an iPod or cell phone become as easy as plugging it into your tee shirt or jeans, and then recharging the clothing overnight? Scientists in California are reporting an advance in that direction with an easier way of changing ordinary cotton and polyester into "conductive energy textiles" -- e-Textiles that double as a rechargeable battery. Their report on the research appears in ACS' Nano Letters.

"Wearable electronics represent a developing new class of materials with an array of novel functionalities, such as flexibility, stretchability, and lightweight, which allow for many applications and designs previously impossible with traditional electronics technology," Yi Cui and colleagues note. "High-performance sportswear, wearable displays, new classes of portable power, and embedded health monitoring systems are examples of these novel applications."

The report describes a new process for making E-textiles that uses "ink" made from single-walled carbon nanotubes — electrically conductive carbon fibers barely 1/50,000 the width of a human hair. When applied to cotton and polyester fabrics, the ink produced e-Textiles with an excellent ability to store . The fabrics retained flexibility and stretchability of regular cotton and polyester, and kept their new e-properties under conditions that simulated repeated laundering.

More information: "Stretchable, Porous, and Conductive Energy Textiles", pubs.acs.org/doi/full/10.1021/nl903949m

Provided by American Chemical Society

"An electrifying advance toward tomorrow's power suits." January 20th, 2010. http://phys.org/news183214328.html