Polyvinyl alcohol-heteropoly acid polymer electrolytes and their applications in electrochemical capacitors

被引：30

作者：

Gao, Han ^{[1
]}

Tian, Qifeng ^{[1
]}

Lian, Keryn ^{[1
]}

机构：

[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada

来源：

SOLID STATE IONICS | 2010年 / 181卷 / 19-20期

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; PHOSPHOTUNGSTIC ACID; PROTON; MEMBRANES;

D O I：

10.1016/j.ssi.2010.05.006

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 solid polymer electrolyte with a poly (vinyl-alcohol) (PVA) matrix and a mixture of H3PW12O40 (PWA) and H4SiW12O40 (SiWA) as proton conductor was developed. The proton conductivity of this polymer electrolyte reached 0.013 scm(-1) at room temperature with a very low activation energy of 3.9 kJ mol(-1) at its optimal ratio (when SiWA and PWA were mixed in equal proportions). The room temperature proton conductivity was higher than that of pure PVA-PWA or PVA-SiWA electrolytes. The solid polymer electrolyte also showed good stability over time and at varying levels of relative humidity. A pseudocapacitor using this solid polymer electrolyte was demonstrated and showed good high rate performance and cycle life. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：874 / 876

页数：3

共 17 条

[1] Cross-linked polymer hydrogel electrolytes for electrochemical capacitors [J].

Choudhury, NA ;

Shukla, AK ;

Sampath, S ;

Pitchumani, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (03) :A614-A620

[2] Sulfonated poly(ether ether ketone)-silica membranes doped with phosphotungstic acid. Morphology and proton conductivity [J].

Colicchio, Irene ;

Wen, Fei ;

Keul, Helmut ;

Simon, Ulrich ;

Moeller, Martin .

JOURNAL OF MEMBRANE SCIENCE, 2009, 326 (01) :45-57

[3] High performance fuel cell based on phosphotungstic acid as proton conducting electrolyte [J].

Giordano, N ;

Staiti, P ;

Hocevar, S ;

Arico, AS .

ELECTROCHIMICA ACTA, 1996, 41 (03) :397-403

[4] Fabrication and properties of hybrid membranes based on salts of heteropolyacid, zirconium phosphate and polyvinyl alcohol [J].

Helen, M. ;

Viswanathan, B. ;

Murthy, S. Srinivasa .

JOURNAL OF POWER SOURCES, 2006, 163 (01) :433-439

[5] Inorganic-polymer composite membranes for proton exchange membrane fuel cells [J].

Herring, Andrew M. .

POLYMER REVIEWS, 2006, 46 (03) :245-296

[6] Proton conductive composite membrane of phosphosilicate and polyvinyl alcohol [J].

Jin, Yonggang ;

da Costa, Joao C. Diniz ;

Lu, G. Q. .

SOLID STATE IONICS, 2007, 178 (13-14) :937-942

[7] A survey of applications of polyoxometalates [J].

Katsoulis, DE .

CHEMICAL REVIEWS, 1998, 98 (01) :359-387

[8]

KREUER KD, 2000, SOLID STATE IONICS, V149, P136

[9] Heteropoly acid electrolytes for double-layer capacitors and pseudocapacitors [J].

Lian, Keryn ;

Li, Changming .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2008, 11 (09) :A158-A162

[10] Solid polymer electrochemical capacitors using heteropoly acid electrolytes [J].

Lian, Keryn ;

Li, Chang Ming .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (01) :22-24

← 1 2 →