Recently there is strong interest in lightweight, flexible, and wearable electronics to meet the technological demands of modern society.... » More

Recently there is strong interest in lightweight, flexible, and wearable electronics to meet the technological demands of

modern society. Integrated energy storage devices of this type are a key area that is still significantly underdeveloped. Here, we

describe wearable power devices using everyday textiles as the platform. With an extremely simple “dipping and drying” process

using single-walled carbon nanotube (SWNT) ink, we produced highly conductive textiles with conductivity of 125 S cm-1 and sheet

resistance less than 1 Ω/sq. Such conductive textiles show outstanding flexibility and stretchability and demonstrate strong adhesion

between the SWNTs and the textiles of interest. Supercapacitors made from these conductive textiles show high areal capacitance,

up to 0.48F/cm2, and high specific energy. We demonstrate the loading of pseudocapacitor materials into these conductive textiles

that leads to a 24-fold increase of the areal capacitance of the device. These highly conductive textiles can provide new design

opportunities for wearable electronics and energy storage applications.

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