High performance solid-state supercapacitor with PVA-KOH- K3[Fe(CN)6] gel polymer as electrolyte and separator

被引：168

作者：

Ma, Guofu ^{[1
]}

Li, Jiajia ^{[1
]}

Sun, Kanjun ^{[2
]}

Peng, Hui ^{[1
]}

Mu, Jingjing ^{[1
]}

Lei, Zigiang ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Polymer Mat Gansu Prov, Key Lab Ecoenvironm Related Polymer Mat,Minist Ed, Lanzhou 730070, Peoples R China

[2] Lanzhou City Univ, Coll Chem & Environm Sci, Lanzhou 730070, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2014年 / 256卷

基金：

中国国家自然科学基金;

关键词：

Gel polymer; Doped materials; Solid-state supercapacitor; High energy density; CARBON NANOTUBES; LAYER; CAPACITANCE; PROTON; CHIP; CELL;

D O I：

10.1016/j.jpowsour.2014.01.062

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A gel polymer PVA-KOH-K-3[Fe(CN)(6)] is prepared by potassium hydroxide and potassium ferricyanide doped polyvinyl alcohol, and a solid-state supercapacitor is assembled using the gel polymer as electrolyte and separator, activated carbons as electrode. The gel polymer exhibits flexible, high ionic conductivity and wide potential properties. The electrochemical properties of the supercapacitor are investigated using cyclic voltammetry, galvanostatic charge/discharge, and impedance spectroscopy techniques. The electrode specific capacitance of the supercapacitor can be as high as 430.95 F g(-1), and after 1000 cycles at a current density of 1 A g(-1) it still remains higher than 380 F g(-1). The energy density and power density of the supercapacitor reach 57.94 Wh kg(-1) and 59.84 kW kg(-1), respectively. These novel flexible gel polymers are desirable for applications in supercapacitor devices. (C) 2014 Published by Elsevier B.V.

引用

页码：281 / 287

页数：7

共 47 条

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