Zinc-based energy storage with functionalized carbon nanotube/polyaniline nanocomposite cathodes

被引：102
作者：
Li, Xu [1 ]
Li, Yang [1 ]
Xie, Shiyin [1 ]
Zhou, Yujun [1 ]
Rong, Jianhua [1 ]
Dong, Liubing [1 ]
机构：
[1] Jinan Univ, Coll Chem & Mat Sci, Guangzhou 511443, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2022年 / 427卷
基金：
中国国家自然科学基金;
关键词：
Zinc-based electrochemical energy storage; Nanocomposite cathode; Functionalized carbon nanotubes; Polyaniline; Flexible energy storage; HIGH-RESOLUTION XPS; OXIDE; LIFE;
D O I：
10.1016/j.cej.2021.131799
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Aqueous zinc-based electrochemical energy storage (EES) systems including zinc-ion batteries and zinc-ion hybrid supercapacitors are increasingly studied, due to their great potential for safe, high-power and wearable energy storage. The electrochemical performance of zinc-based EES systems is strongly affected by cathode materials. Herein, functionalized carbon nanotube (f-CNT)/polyaniline (PANI) nanocomposites were synthesized by in-situ polymerization of PANI on f-CNTs and then used as cathode materials for zinc-based EES systems. Benefiting from better hydrophilicity and chemical adsorption ability of Zn2+, f-CNTs are superior to pristine CNTs in electrochemical performance, and the f-CNT/PANI nanocomposites effectively integrated capacitive energy storage mechanism of f-CNTs with redox reaction energy storage mechanism of PANI, thereby exhibiting superior comprehensive electrochemical properties including high capacity, good rate performance and long cycle life. Moreover, high-performance and flexible zinc-based EES devices were constructed with the f-CNT/ PANI nanocomposite cathodes. This work is expected to provide new thoughts to achieve high-performance and flexible zinc-based EES.
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页数：8
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