Development of a novel redox flow battery for electricity storage system

被引:24
作者
Fang, B [1 ]
Wei, Y [1 ]
Arai, T [1 ]
Iwasa, S [1 ]
Kumagai, M [1 ]
机构
[1] Inst Res & Innovat, Chiba 2770861, Japan
关键词
electricity storage; membrane; redox flow battery; vanadium; Vycor glass/silica glass;
D O I
10.1023/A:1024025603600
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A novel cylindrical battery which uses carbon fibres with high specific surface area as electrodes and a porous silica glass with high chemical stability as membrane has been fabricated. The results obtained from electrolysis of 0.5 M K3Fe(CN)(6)-0.5 M KCl and of 85 mM V(IV) - 1 M H2SO4 indicate that the cell possesses excellent electrolytic efficiency. As a redox flow battery (RFB) its performance was investigated by employing all-vanadium sulfate electrolytes. The results of the cyclic voltammetry measurements indicate that at a glassy carbon electrode the electrochemical window for 2 M H2SO4 solution could reach 2.0 similar to 2.4 V. Constant current charging - discharging tests indicate that the batteries could deliver a specific energy of 24 Wh L-1 at a current density of 55 mA cm(-2). The open-circuit cell voltage, after full charging, remained constant at about 1.51 V for over 72 h, while the coulombic efficiency was over 91%, showing that there was negligible self-discharge due to active ions diffusion through the membrane during this period.
引用
收藏
页码:197 / 203
页数:7
相关论文
共 8 条
[1]   PREPARATION AND EVALUATION OF COMPOSITE MEMBRANE FOR VANADIUM REDOX BATTERY APPLICATIONS [J].
CHIENG, SC ;
KAZACOS, M ;
SKYLLAS-KAZACOS, M .
JOURNAL OF POWER SOURCES, 1992, 39 (01) :11-19
[2]  
Grossmith F., 1988, P EL SOC S HON OCT, P363
[3]  
HADDADIASL V, 1995, J APPL ELECTROCHEM, V25, P29, DOI 10.1007/BF00251261
[4]   VANADIUM REDOX REACTIONS AND CARBON ELECTRODES FOR VANADIUM REDOX FLOW BATTERY [J].
KANEKO, H ;
NOZAKI, K ;
WADA, Y ;
AOKI, T ;
NEGISHI, A ;
KAMIMOTO, M .
ELECTROCHIMICA ACTA, 1991, 36 (07) :1191-1196
[5]  
NOZAKI K, 1992, 1991 ANN SUMM SOL EN, P481
[6]   CHARACTERISTICS OF A NEW ALL-VANADIUM REDOX FLOW BATTERY [J].
RYCHCIK, M ;
SKYLLAS-KAZACOS, M .
JOURNAL OF POWER SOURCES, 1988, 22 (01) :59-67
[7]  
SKYLLASKAZACOS M, 1985, J ELECTROCHEM SOC, V133, P1057
[8]   INVESTIGATION OF THE V(V)/V(IV) SYSTEM FOR USE IN THE POSITIVE HALF-CELL OF A REDOX BATTERY [J].
SUM, E ;
RYCHCIK, M ;
SKYLLAS-KAZACOS, M .
JOURNAL OF POWER SOURCES, 1985, 16 (02) :85-95