Solid polymer electrochemical capacitors using heteropoly acid electrolytes

被引:22
|
作者
Lian, Keryn [1 ]
Li, Chang Ming [2 ]
机构
[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada
[2] Nanyang Technol Univ, Div Bioengn, Singapore 637457, Singapore
基金
加拿大自然科学与工程研究理事会;
关键词
Electrochemical capacitor; Solid polymer electrolyte; Heteropoly acid; Pseudocapacitor; DOUBLE-LAYER CAPACITORS; MEMBRANES;
D O I
10.1016/j.elecom.2008.10.016
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
An electrochemical capacitor utilizing a polyvinyl alcohol (PVA) and H4SiW12O40 (SiWA) solid polymer electrolyte was developed. The electrolyte was deposited via precursor solution coating followed by thermal pressing and exhibited an ionic conductivity of 0.01 S/cm. The electrolyte has also shown good stability and cycle life. The performance of the solid polymer electrolyte-based capacitor was characterized using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), and was compared to a similar capacitor with an aqueous electrolyte. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:22 / 24
页数:3
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