High power density aqueous hybrid supercapacitor combining activated carbon and highly conductive spinel cobalt oxide

被引：64

作者：

Godillot, G. ^{[1
]}

Taberna, P. -L. ^{[2
,3
]}

Daffos, B. ^{[2
,3
]}

Simon, P. ^{[2
,3
]}

Delmas, C. ^{[1
]}

Guerlou-Demourgues, L. ^{[1
,3
]}

机构：

[1] Univ Bordeaux, UPR 9048, ICMCB, Bordeaux INP,CNRS, F-33600 Pessac, France

[2] Univ Toulouse, CIRIMAT, UMR 5085, 118 Route Narbonne, F-31062 Toulouse, France

[3] CNRS, FR 3459, Reseau Francais Stockage Electrochim Energie, RS2E, F-75700 Paris, France

来源：

JOURNAL OF POWER SOURCES | 2016年 / 331卷

关键词：

Cobalt oxide; Spinel; Hybrid supercapacitor; Electrode; ASYMMETRIC SUPERCAPACITOR; NANOFLAKE MATERIALS; 2; V; ELECTROLYTE; STORAGE; ENERGY; PERFORMANCE; CAPACITOR;

D O I：

10.1016/j.jpowsour.2016.09.035

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：

The remarkable electrochemical behavior of complete activated carbon/cobalt oxide cells is reported in the present work. Among the various weight ratios between the positive and negative electrodes evaluated, the best features are obtained with an overcapacitive cobalt oxide electrode. The energy densities obtained by this system (20 Wh kg(-1) for a power density of 209 W kg(-1)) are twice higher than those measured for a activated carbon/activated carbon symmetric cell, in the same operating conditions. With discharge capacities around 62 F g(-1), this system is among the best ones reported in the literature for this category. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：277 / 284

页数：8

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