Proton conducting H5BW12O40 electrolyte for solid supercapacitors

被引：31

作者：

Gao, Han ^{[1
]}

Virya, Alvin ^{[1
]}

Lian, Keryn ^{[1
]}

机构：

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

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 43期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HETEROPOLY ACID ELECTROLYTES; ELECTROCHEMICAL CAPACITORS; 12-TUNGSTOPHOSPHORIC ACID; PHOSPHOTUNGSTIC ACID; FUEL-CELLS; POLYMER ELECTROLYTES; CU-II; MEMBRANES; TEMPERATURE; REDUCTION;

D O I：

10.1039/c5ta06685a

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：

H5BW12O40 (BWA), a heteropoLyacid with B3+ as the centraL heteroatom, was deveLoped as an eLectroLyte for soLid supercapacitors. The structuraL properties of the synthesized BWA were investigated using FTIR and XRD and were compared to those of the known siLicotungstic acid (H4SiW12O40, SiWA) eLectroLyte. Factors affecting the ceLL voLtage of supercapacitors using Liquid BWA and SiWA eLectroLytes were identified using an in situ eLectrode potentiaL tracking method. The respective contributions of the eLectrodes and eLectroLyte were reveaLed and BWA showed a wider potentiaL window than SiWA. SoLid supercapacitors enabLed by BWA- and SiWA-based poLymer eLectroLytes were demonstrated and exhibited exceLLent rate performance. The soLid device Leveraging a BWA-based poLymer eLectroLyte achieved a ceLL voLtage of 1.6 V. better than 1.4 V achieved by the SiWA-based device.

引用

页码：21511 / 21517

页数：7

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