In the February issue of New Scientist Paul Marks reports about the ability to weave a flexible battery into fabricsthatcould provide electricity for gadgets in your clothing. Batteries have been connected to T-shirts, but have not been built into the fabric of a garment. “Maksim Skorobogatiy and colleagues at the Polytechnic School of Montreal in Canada say they have done just that.” To build this the architects cram a sold polyethylene oxide electrolyte between a lithium ion phosphate cathode and lithium titanate anode. These thermoplastic materials can be stretched under mild heating. The material resembles artificial leather. “After stretching, the team wove strips of it into cotton fabrics and used conductive threads to connect these batteries in series…‘It’s the first fully wearable, soft lithium-ion battery that uses no liquid electrolytes,’ claims Skorobogatiy.” This garment could deliver hundreds of volts, which can enable applications in which a battery-backed garment could deliver power in an emergency. The clothing can produce enough power to save a life by defibrillating a patient and emit a distress signal. The only problem the builders now face is waterproofing the technology and making it washable. Sandy Black, who researches smart textiles, thinks that this technology could be used first in bags, backpacks, and medical-monitoring garments.














