Development of sustainable cotton-based textile electrode using DMSO-doped PEDOT:PSS for wearable applications
摘要
In recent years, significant progress has been achieved in the development of textile-based flexible supercapacitors, particularly in the context of wearable energy storage systems. These supercapacitors work on the charging mechanism through Faradaic redox reactions to attain reasonable capacitance and energy density. However, their commercial use is still limited due to complex manufacturing processes, unsustainable materials, and high costs. In the present work, eco-friendly cellulosic material (cotton fabric) has been transformed into a functional conductive electrode using conductive polymeric coating (PEDOT:PSS) through a facile and expedient dip coating methodology. The developed biodegradable cotton-based textile electrode shows excellent mechanical endurance, flexibility, adequate aging stability, and comparable electrochemical performance as reported in the literature over the cotton fabric exhibiting specific capacitance (722 mF g−1 at 5 mV s−1) with an excellent cyclic charge–discharge stability (68% after 1000 cycles at 100 mV s−1) within a potential window range of 0–0.8 V. This work provides a feasible environmentally conscious approach for developing an electrode for a flexible energy storage device using a biodegradable fabric, which has a significant potential for use in electronic textiles and wearable electronics.
HighlightsThis research sheds light on the development of a sustainable energy storage electrode from 100% cotton fabric-a cellulose-based material through the utilization of environmentally benign materials and methods. A metal-free fabrication approach is presented, utilizing biocompatible and biodegradable fabric along with environmentally safe chemicals to develop a textile-based supercapacitor electrode that is both wearable and safe for human health. Present work demonstrates the use of cost and time effective dip coating technique to impart electronic functionalities and conductivity into the cotton fabric.
Assaying various combinations of potentially pseudocapacitive materials could be used in future study to improve the electrochemical characteristics of the textile-based supercapacitor electrode. Further investigation can be conducted to develop the textile-based supercapacitor electrode using the dip coating methodology tested on other textile materials such as polyester, silk, wool, without sacrificing important elements like sustainability, and environmental friendliness in addition to obvious textile-wearing features. Washability and mechanical durability are crucial for conductive textiles, a precise and methodical process can be extended to give the textile-based supercapacitor Wash-durable and mechanical degradation-resistant properties.