Scalable production of 2D material heterostructure textiles for high-performance wearable supercapacitors

Islam, Md Rashedul, Afroj, Shaila and Karim, Nazmul (2023) Scalable production of 2D material heterostructure textiles for high-performance wearable supercapacitors. ACS Nano, 17 (18), 18481-18493. (doi:10.1021/acsnano.3c06181).

Abstract

Wearable electronic textiles (e-textiles) have emerged as a promising platform for seamless integration of electronic devices into everyday life, enabling nonintrusive monitoring of human health. However, the development of efficient, flexible, and scalable energy storage solutions remains a significant challenge for powering such devices. Here, we address this challenge by leveraging the distinct properties of two-dimensional (2D) material based heterostructures to enhance the performance of wearable textile supercapacitors. We report a highly scalable and controllable synthesis method for graphene and molybdenum disulfide (MoS 2) through a microfluidization technique. Subsequently, we employ an ultrafast and industry-scale hierarchical deposition approach using a pad-dry method to fabricate 2D heterostructure based textiles with various configurations suitable for wearable e-textiles applications. Comparative analyses reveal the superior performance of wearable textile supercapacitors based on 2D material heterostructures, demonstrating excellent areal capacitance (∼105.08 mF cm -2), high power density (∼1604.274 μW cm -2) and energy density (∼58.377 μWh cm -2), and outstanding capacitive retention (∼100% after 1000 cycles). Our findings highlight the pivotal role of 2D material based heterostructures in addressing the challenges of performance and scalability in wearable energy storage devices, facilitating large-scale production of high-performance wearable supercapacitors.

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Contributors

Author: Nazmul Karim

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