A Symmetric RuO2/RuO2 Supercapacitor Operating at 1.6 V by Using a Neutral Aqueous Electrolyte

被引：344

作者：

Xia, Hui ^{[1
]}

Meng, Ying Shirley ^{[2
]}

Yuan, Guoliang ^{[1
]}

Cui, Chong ^{[1
]}

Luc, Li ^{[3
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA

[3] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2012年 / 15卷 / 04期

基金：

中国国家自然科学基金;

关键词：

ELECTROCHEMICAL CAPACITORS; ASYMMETRIC SUPERCAPACITORS; PERFORMANCE; CARBON;

D O I：

10.1149/2.023204esl

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel symmetric RuO2/RuO2 supercapacitor with a high operating voltage of 1.6 V is built using the nanocrystalline hydrous RuO2. The symmetric supercapacitor exhibits an energy density of 18.77 Wh kg(-1) at a power density of 500 W kg(-1) based on the total mass of active electrode material and excellent cycling stability and power capability. These results demonstrate the potentialities of using RuO2 for symmetric supercapacitor or using RuO2 as negative electrode for asymmetric supercapacitor with high energy density. (C) 2012 The Electrochemical Society. [DOI:10.1149/2.023204esl]All rights reserved.

引用

页码：A60 / A63

页数：4

共 17 条

[1] R&D considerations for the performance and application of electrochemical capacitors [J].

Burke, Andrew .

ELECTROCHIMICA ACTA, 2007, 53 (03) :1083-1091

[2] Textural and capacitive characteristics of hydrothermally derived RuO2•xH2O nanocrystallites:: Independent control of crystal size and water content [J].

Chang, Kuo-Hsin ;

Hu, Chi-Chang ;

Chou, Chih-Yin .

CHEMISTRY OF MATERIALS, 2007, 19 (08) :2112-2119

[3] Coalescence inhibition of hydrous RuO2 crystallites prepared by a hydrothermal method [J].

Chang, Kuo-Hsin ;

Hu, Chi-Chang .

APPLIED PHYSICS LETTERS, 2006, 88 (19)

[4] Preparation and Characterization of Flexible Asymmetric Supercapacitors Based on Transition-Metal-Oxide Nanowire/Single-Walled Carbon Nanotube Hybrid Thin-Film Electrodes [J].

Chen, Po-Chiang ;

Shen, Guozhen ;

Shi, Yi ;

Chen, Haitian ;

Zhou, Chongwu .

ACS NANO, 2010, 4 (08) :4403-4411

[5] Dual functions of activated carbon in a positive electrode for MnO2-based hybrid supercapacitor [J].

Gao, Peng-Cheng ;

Lu, An-Hui ;

Li, Wen-Cui .

JOURNAL OF POWER SOURCES, 2011, 196 (08) :4095-4101

[6] Electrochemical Properties of MnOx-RuO2 Nanofiber Mats Synthesized by Co-Electrospinning [J].

Hyun, Tae-Seon ;

Kang, Ji-Eun ;

Kim, Ho-Gi ;

Hong, Jae-Min ;

Kim, Il-Doo .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2009, 12 (12) :A225-A228

[7] Self-discharge and potential recovery phenomena at thermally and electrochemically prepared RuO2 supercapacitor electrodes [J].

Liu, TC ;

Pell, WG ;

Conway, BE .

ELECTROCHIMICA ACTA, 1997, 42 (23-24) :3541-3552

[8] Individual and Bipolarly Stacked Asymmetrical Aqueous Supercapacitors of CNTs/SnO2 and CNTs/MnO2 Nanocomposites [J].

Ng, Kok Chiang ;

Zhang, Shengwen ;

Peng, Chuang ;

Chen, George Z. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (11) :A846-A853

[9] Study on electrochemical performance of activated carbon in aqueous Li2SO4, Na2SO4 and K2SO4 electrolytes [J].

Qu, Q. T. ;

Wang, B. ;

Yang, L. C. ;

Shi, Y. ;

Tian, S. ;

Wu, Y. P. .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (10) :1652-1655

[10] A new cheap asymmetric aqueous supercapacitor: Activated carbon//NaMnO2 [J].

Qu, Q. T. ;

Shi, Y. ;

Tian, S. ;

Chen, Y. H. ;

Wu, Y. P. ;

Holze, R. .

JOURNAL OF POWER SOURCES, 2009, 194 (02) :1222-1225

← 1 2 →