Abstract
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.
Highlights
Flexible One-Dimensional Fiber-Shaped ElectrodesOne-dimensional (1D) fiber-shaped electrodes have good flexibility, small size, light
Key Laboratory of Textile Science & Technology, Donghua University, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
Cellulose, lignin or raw lignocellulosic biomass are converted into carbon electrodes for flexible supercapacitors by carbonization, activation and possible surface modification
Summary
One-dimensional (1D) fiber-shaped electrodes have good flexibility, small size, light. Fiber-shaped electrodes have good flexibility, small size, light weight, charge/discharge process, long service life and good stability [40,41]
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