Electrochemical capacitors with plasticized gel-polymer electrolytes

被引：107

作者：

Mitra, S

Shukla, AK

Sampath, S ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Solid State Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF POWER SOURCES | 2001年 / 101卷 / 02期

关键词：

magnesium ion conductor; solid electrolyte; polymer-gel; electrochemical capacitor; high density graphite; power source;

D O I：

10.1016/S0378-7753(01)00673-5

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：

Solid electrolytes which comprise lithium and magnesium triflate ionic salts in polyacrylonitrile (PAN)-based gels are used to fabricate electrochemical double-layer capacitors in conjunction with ethylene carbonate (EC) and propylene carbonate (PC) as plasticizers and high-density graphite (HDG) as polarizable electrodes. The conductivity of the solid electrolytes is around 10(-3) S cm(-1) at ambient temperatures. Composites which consist of PAN + EC + PC + electrolyte are electrochemically stable over a wide potential range. Cells of the type: HDG/PAN-EC-PC-Li and Mg-triflate/HDG exhibit single-electrode discharge capacitance values of 480 and 383 muF cm(-2), respectively, with attractive charge-discharge characteristics. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：213 / 218

页数：6

共 24 条

[1] LI+-CONDUCTIVE SOLID POLYMER ELECTROLYTES WITH LIQUID-LIKE CONDUCTIVITY [J].