Issue 12, 2021

Overview of cellulose-based flexible materials for supercapacitors

Abstract

To tackle the crisis of fossil energy shortage and global warming, exploring a series of efficient, portable devices for the conversion/storage of clean and renewable energy sources has remained a significant topic. Supercapacitors as an advanced energy storage device have the properties of portability and stable performance, electrode materials especially flexible electrode materials as important components of supercapacitors have drawn great attention in various emerging fields such as portable, wearable electronics and memory materials. Based on high aspect ratios, specific surface areas, porosity, mechanical properties and excellent flexibility, natural polysaccharide cellulose and its derivatives have become promising building polymers for flexible electrode materials. In view of poor electrical conductivity and low areal capacitance, the compound modification of cellulose flexible materials and the corresponding application in flexible electrodes are reviewed. To further illustrate their versatile properties and performances, cellulose-based flexible electrolytes and membranes are summarized with detailed examples. Overall, this review covers recent advances regarding cellulose-based flexible materials for different components including electrodes, electrolytes and membranes used in supercapacitors and expects to provide references for further research of this promising material.

Graphical abstract: Overview of cellulose-based flexible materials for supercapacitors

Article information

Article type
Review Article
Submitted
28 oct. 2020
Accepted
18 dic. 2020
First published
14 ene. 2021

J. Mater. Chem. A, 2021,9, 7278-7300

Overview of cellulose-based flexible materials for supercapacitors

Z. Sun, K. Qu, Y. You, Z. Huang, S. Liu, J. Li, Q. Hu and Z. Guo, J. Mater. Chem. A, 2021, 9, 7278 DOI: 10.1039/D0TA10504J

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