Asymmetric flexible supercapacitor stack

被引：93

作者：

Reddy, A. Leela Mohana ^{[1
]}

Amitha, F. Estaline ^{[1
]}

Jafri, Imran ^{[1
]}

Ramaprabhu, S. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, Alternat Energy Technol Lab, Madras 600036, Tamil Nadu, India

来源：

NANOSCALE RESEARCH LETTERS | 2008年 / 3卷 / 04期

关键词：

multiwalled carbon nanotubes; polymers; metal oxide; supercapacitor stack; asymmetry; solid electrolyte;

D O I：

10.1007/s11671-008-9127-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electrical double layer supercapacitor is very significant in the field of electrical energy storage which can be the solution for the current revolution in the electronic devices like mobile phones, camera flashes which needs flexible and miniaturized energy storage device with all non-aqueous components. The multiwalled carbon nanotubes (MWNTs) have been synthesized by catalytic chemical vapor deposition technique over hydrogen decrepitated Mischmetal (Mm) based AB(3) alloy hydride. The polymer dispersed MWNTs have been obtained by insitu polymerization and the metal oxide/MWNTs were synthesized by sol-gel method. Morphological characterizations of polymer dispersed MWNTs have been carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM and HRTEM). An assymetric double supercapacitor stack has been fabricated using polymer/MWNTs and metal oxide/MWNTs coated over flexible carbon fabric as electrodes and nafion (R) membrane as a solid electrolyte. Electrochemical performance of the supercapacitor stack has been investigated using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy.

引用

页码：145 / 151

页数：7

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