An activated carbon monolith as an electrode material for supercapacitors

被引：156

作者：

Ruiz, V. ^{[1
]}

Blanco, C. ^{[1
]}

Santamaria, R. ^{[1
]}

Ramos-Fernandez, J. M. ^{[2
]}

Martinez-Escandell, M. ^{[2
]}

Sepulveda-Escribano, A. ^{[2
]}

Rodriguez-Reinoso, F. ^{[2
]}

机构：

[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain

[2] Univ Alicante, Dept Quim Inorgan, E-3080 Alicante, Spain

来源：

CARBON | 2009年 / 47卷 / 01期

关键词：

ELECTROCHEMICAL-BEHAVIOR; CAPACITIVE DEIONIZATION; POLYANILINE; PYROLYSIS; PITCH;

D O I：

10.1016/j.carbon.2008.09.048

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：

Activated carbon binderless monoliths with high consistency and large porosity, synthesised from a mesophase pitch, are studied as electrodes for supercapacitors. The electro-chemical cells prepared provided high capacitance values in sulphuric acid media (334 F g(-1)) and very low electrical resistivity, which results in a very efficient energy storage device (12 Wh Kg(-1) maximum energy density and 12,000 W Kg(-1) maximum power density). Long-term cycling experiments showed excellent stability with a reduction of the initial capacitance values of 19% after performing 23,000 galvanostatic cycles at similar to 300 mA g(-1). (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：195 / 200

页数：6

共 34 条

[21] FORMATION OF ACTIVE CARBONS FROM COKES USING POTASSIUM HYDROXIDE [J].