超级电容器
材料科学
电解质
水平扫描速率
循环伏安法
介电谱
化学工程
扫描电子显微镜
聚乙烯醇
电容
碳纳米管
聚偏氟乙烯
复合材料
电极
电化学
化学
聚合物
工程类
物理化学
作者
Ghobad Behzadi Pour,Leila Fekri Aval,Masoud Mirzaee
出处
期刊:Recent Patents on Nanotechnology
日期:2020-09-16
卷期号:14 (2): 163-170
被引量:28
标识
DOI:10.2174/1872210513666191204111006
摘要
Background: In this paper, the supercapacitor based on the carbon nanotubes (CNTs) electrodes has been fabricated. Objective: The Polyvinylidene Fluoride (PVDF) and Polyvinyl Alcohol (PVA) were used as a gel electrolyte. Methods: The electrodes and electrolytes thin films were characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The specific Capacitance (Cs) of the CNTs-based supercapacitor has been measured using the cyclic voltammetry and galvanostatic methods. For the scan rate, 20 mV s -1 the Cs of the CNTs-based supercapacitor was 173 F g -1 . Results: Using the electrochemical impedance spectroscopy the Nyquist curve has been plotted. The reactance capacitance and the equivalent series resistance of the CNTs-based supercapacitor with PVDF/PVA gel electrolytes were 90 Ω and 25 Ω respectively. Conclusion: Also, few patents for the CNTs-based supercapacitor have been reviewed and cited. The CNTs-based supercapacitor proposed a new structure solid-state and flexible supercapacitor with high performance.
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