IMPROVED VANADIUM BROMIDE BATTERY (METAL HALIDE REDOX FLOW CELL)

WIPO Patent Application WO2003092138

A3

A 3 M V(IV) bromide solution in 3-4 M HBr or HBr/HCl mixture is added to both sides of the redox flow cell or battery. On fully charging the cell, the vanadium (IV) bromide solution is reduced to produce 3M VBr2 in the negative half-cell, while the bromide ions in the positive half-cell are oxidised to produce 1.5 M Br3- or CIBr2. On discharge, the VBr2 is oxidised to VBr3 in the negative half cell while the Br3 or ClBr2- ions are reduced to Br ions in the positive half cell. The cell comprises carbon or graphite felt bonded onto plastic or conducting plastic sheets as substrate materials and the two half cells are separated by an anion or cation exchange membrane.

SKYLLAS-KAZACOS MARIA (AU)
KAZACOS MICHAEL (AU)
MOUSA ASEM (AU)

PCT/GB2003/001757

March 04, 2004

April 23, 2003

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FUEL TECHNOLOGY LTD E (GB)
SKYLLAS-KAZACOS MARIA (AU)
KAZACOS MICHAEL (AU)
MOUSA ASEM (AU)

H01M4/86; H01M4/96; H01M8/08; H01M8/18; H01M8/20; H01M10/44; H01M12/08; H02J; (IPC1-7): H01M8/20; H01M8/18; H01M8/08

WO1995012219A1	1995-05-04
WO2000057507A1	2000-09-28
WO1994006164A1	1994-03-17
WO2003019714A1	2003-03-06
WO2002095855A1	2002-11-28

US4786567A

1988-11-22

SUM E ET AL: "A STUDY OF THE V(II)/V(III) REDOX COUPLE FOR REDOX FLOW CELL APPLICATIONS", JOURNAL OF POWER SOURCES, ELSEVIER SEQUOIA S.A. LAUSANNE, CH, vol. 15, no. 2/3, June 1985 (1985-06-01), pages 179 - 190, XP002102843, ISSN: 0378-7753
SUM E ET AL: "INVESTIGATION OF THE V(V)/V(IV) SYSTEM FOR USE IN THE POSITIVE HALF-CELL OF A REDOX BATTERY", JOURNAL OF POWER SOURCES, ELSEVIER SEQUOIA S.A. LAUSANNE, CH, vol. 16, no. 2, 1985, pages 85 - 95, XP002102841, ISSN: 0378-7753

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