Lignocellulosic Biomass-Derived Carbon Electrodes for Flexible Supercapacitors: An Overview

• Published in: Materials Vol. 14; no. 16; p. 4571
• Main Authors: Hu, Wenxin, Xiang, Ruifang, Lin, Jiaxian, Cheng, Yu, Lu, Chunhong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 14-08-2021; MDPI
• Subjects: Biomass; Carbon; Electrochemical analysis; electrochemical performance; electrode; Electrode materials; Electrodes; Electrolytes; Electronic devices; Energy storage; flexible/wearable supercapacitor; Fuel cells; Graphene; Lignocellulose; lignocellulose-derived carbon; Manufacturing; Metal oxides; R&D; Research & development; Review; Smart materials; Sulfur; Supercapacitors; Surface stability; Textiles; Wearable technology; Yarn; electrode; flexible/wearable supercapacitor; lignocellulose-derived carbon; electrochemical performance
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma14164571

With the increasing demand for high-performance electronic devices in smart textiles, various types of flexible/wearable electronic device (i.e., supercapacitors, batteries, fuel cells, etc.) have emerged regularly. As one of the most promising wearable devices, flexible supercapacitors from a variety of electrode materials have been developed. In particular, carbon materials from lignocellulosic biomass precursor have the characteristics of low cost, natural abundance, high specific surface area, excellent electrochemical stability, etc. Moreover, their chemical structures usually contain a large number of heteroatomic groups, which greatly contribute to the capacitive performance of the corresponding flexible supercapacitors. This review summarizes the working mechanism, configuration of flexible electrodes, conversion of lignocellulosic biomass-derived carbon electrodes, and their corresponding electrochemical properties in flexible/wearable supercapacitors. Technology challenges and future research trends will also be provided.