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Published in: Rare Metals 2/2023

02-11-2022 | Original Article

Preparation of chitosan and citric acid crosslinked membrane and its application in quasi-solid supercapacitors

Authors: Hao-Hang Xu, Liang Yue, Yang Tang, Fan Liu, Hong-Jiu Zhu, Shu-Juan Bao

Published in: Rare Metals | Issue 2/2023

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Abstract

Quasi-solid electrolytes promote the development of safe and flexible energy storage devices. In this work, a chitosan and citric acid crosslinked membrane is prepared by a freeze–thaw cross-linking method, in which the chemical crosslinking of chitosan and citric acid increase the viscoelastic behavior of the polymer membrane, and the freeze–thaw assist freeze drying process to create abundant interconnected open-pores and three-dimensional (3D) network. Due to the good viscoelasticity, excellent electrolyte loading capacity (596%) and high ion conductivity (7.7 × 10–3 S·cm−1), as quasi-solid electrolyte, our proposed chitosan and citric acid crosslinked membrane helps Zn|CCFT-ZnSO4|AC hybrid supercapacitor to delivers wide operating voltage, high specific capacity of 100.5 F·g−1 and stable cycle life (93% after 1000 cycles), which suggests that our proposed freeze–thaw assisted freeze drying method has great potential in designing quasi-solid state electrolyte for energy storage device.

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Appendix
Available only for authorised users
Literature
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Metadata
Title
Preparation of chitosan and citric acid crosslinked membrane and its application in quasi-solid supercapacitors
Authors
Hao-Hang Xu
Liang Yue
Yang Tang
Fan Liu
Hong-Jiu Zhu
Shu-Juan Bao
Publication date
02-11-2022
Publisher
Nonferrous Metals Society of China
Published in
Rare Metals / Issue 2/2023
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-022-02115-w

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