New materials for supercapacitors

被引：98

作者：

Wohlfahrt-Mehrens, M ^{[1
]}

Schenk, J ^{[1
]}

Wilde, PM ^{[1
]}

Abdelmula, E ^{[1
]}

Axmann, P ^{[1
]}

Garche, J ^{[1
]}

机构：

[1] Ctr Solar & Hydrogen Res Baden Wuerttemberg, EC Energy Storage & Convers Div, ZSW, D-89081 Ulm, Germany

来源：

JOURNAL OF POWER SOURCES | 2002年 / 105卷 / 02期

关键词：

supercapacitor; perovskite; strontium ruthenate; cobalt/aluminum hydroxide;

D O I：

10.1016/S0378-7753(01)00937-5

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：

Ruthenates based on SrRuO3 perovskite exhibit pseudocapacitance behavior. Replacing up to 20 mol% Sr by La leads to an increase of the specific capacity. The stability window of ruthenates is strongly dependent on B-site cations. Fe or Co substitution reduces the stability of the electrolyte whereas 20 mol% doping by Mn on the B-site increases the capacity without reducing, the potential window. A capacitance up to 270 F/g was obtained by optimizing composition and preparation route. Cobalt or aluminum mixed hydroxides/oxyhydroxides also seems to have the potential for high pseudocapacitance behavior and exhibit capacitance up to 360 F/g, but the potential window is very limited. (C) 2002 Elsevier Science B.V All rights reserved.

引用

页码：182 / 188

页数：7

共 18 条

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