Development of a novel redox flow battery for electricity storage system

B. Fang, Y. Wei, Tsuyoshi Arai, S. Iwasa, M. Kumagai

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

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) 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 ∼ 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.

Original languageEnglish
Pages (from-to)197-203
Number of pages7
JournalJournal of Applied Electrochemistry
Volume33
Issue number2
DOIs
Publication statusPublished - 2003 Feb
Externally publishedYes

Fingerprint

Electricity
Membranes
Vanadium
Electrodes
Chemical stability
Glassy carbon
Fused silica
Electrolysis
Specific surface area
Electrolytes
Sulfates
Cyclic voltammetry
Carbon fibers
Current density
Ions
Networks (circuits)
Electric potential
Flow batteries
carbon fiber
potassium ferricyanide

Keywords

  • Electricity storage
  • Membrane
  • Redox flow battery
  • Vanadium
  • Vycor glass/silica glass

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Development of a novel redox flow battery for electricity storage system. / Fang, B.; Wei, Y.; Arai, Tsuyoshi; Iwasa, S.; Kumagai, M.

In: Journal of Applied Electrochemistry, Vol. 33, No. 2, 02.2003, p. 197-203.

Research output: Contribution to journalArticle

Fang, B. ; Wei, Y. ; Arai, Tsuyoshi ; Iwasa, S. ; Kumagai, M. / Development of a novel redox flow battery for electricity storage system. In: Journal of Applied Electrochemistry. 2003 ; Vol. 33, No. 2. pp. 197-203.
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