H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 10/36 (2006.01) H01M 8/18 (2006.01) H01M 8/20 (2006.01) H01M 12/00 (2006.01)
Patent
CA 2145882
An electrochemical apparatus for power delivery employs an array of electrochemical cells which comprises an end +ve electrode and an end -ve electrode separated by one or more bipolar mid-electrodes each with a +ve side and a -ve, the +ve side of each bipolar electrode comprising an electrically conductive substrate with a porous conductive surface. A bubbly dispersion of air/oxygen in an electrolyte is contacted with the +ve sides of the bipolar electrodes. The electrochemical ap- paratus of the invention may be used with an oxygen-sulfur couple with these reagents being provided for example as sodi- um salts in aqueous solutions, the overall reaction being: 4H2O + 4S2- + 2O2 - > 80H- + 4S. The process is preferably car- ried out in an array of cells (20), comprising a plurality of bipolar electrodes (13), each having a +ve side (12A) and a -ve side (14A) spaced from one another by membranes (16) which divide the cell into +ve and -ve chambers (22C and 24C) for posilyte and anolyte solutions (22, 24) which are circulated through the chambers.
Fetherstonhaugh & Co.
Regenesys Technologies Limited
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