Electronic textiles (e‐textiles) have drawn significant attention from the scientific and engineering community as lightweight and comfortable next‐generation wearable devices due to their ability to interface with the human body, and continuously monitor, collect, and communicate various physiological parameters. However, one of the major challenges for the commercialization and further growth of e‐textiles is the lack of compatible power supply units. Thin and flexible supercapacitors (SCs), among various energy storage systems, are gaining consideration due to their salient features including excellent lifetime, lightweight, and high‐power density. Textile‐based SCs are thus an exciting energy storage solution to power smart gadgets integrated into clothing. Here, materials, fabrications, and characterization strategies for textile‐based SCs are reviewed. The recent progress of textile‐based SCs is then summarized in terms of their electrochemical performances, followed by the discussion on key parameters for their wearable electronics applications, including washability, flexibility, and scalability. Finally, the perspectives on their research and technological prospects to facilitate an essential step towards moving from laboratory‐based flexible and wearable SCs to industrial‐scale mass production are presented.

Smart Electronic Textile‐Based Wearable Supercapacitors

The energy storage performance of fabricated solid state supercapacitor based upon the polyaniline (PANI) sample has been investigated in the present study. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) studies have been performed on simple chemistry based synthesized PANI to check the appropriate synthesis of sample with electrochemical analysis. The existence of required fundamental bands in the FTIR spectra of PANI confirms the facial growth of desired PANI sample in its highly conducting form. Scanning electron microscopy investigation designates the cotton-like morphology of prepared sample with particle size in the micro/nanometer range. The energy storage performance of the fabricated supercapacitor is noted using cyclic voltammetry analysis. The significantly high values of specific capacitance and energy density are 193.04 Fg−1 and 107.14 Whkg−1, respectively, for prepared supercapacitor at the scan rate 40 mV/s. The high values of these parameters may be ascribed to high conductivity and low resistance of the supercapacitor. The PANI supercapacitor exhibits the efficient capacitance retention of more than 65% of initial capacitance after 10000 charging-discharging cycles.

Efficient energy storage performance of polyaniline based supercapacitor

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Efficient energy storage performance of polyaniline based supercapacitor