Electrical conditioning system for electrodes in an...

Details Electrical conditioning system for electrodes in an... Electrical conditioning system for electrodes in an...

C - Chemistry, Metallurgy

25

F

204/122, 204/83

C25F 1/00 (2006.01) C23F 13/02 (2006.01) C25B 1/04 (2006.01) C25B 11/00 (2006.01) H01M 8/06 (2006.01) H01M 10/42 (2006.01)

Patent

CA 1333896

Metal electrodes (17,20) defining a cathode and anode are positioned in an electrolyte (28) so as to comprise an electrolysis cell (18). An electrical conditioning circuit (10) includes means for generating a pulsating DC voltage signal, which is connected to the metal electrodes (17,20). Particular characteris- tics of the pulsating signal, including in particular peak pulse voltage and duty cycle, have selected values such that hydrogen is produced from one electrode (17) and the other electrode (20) is maintained substan- tially in a state of depassivation, such that any ox- ide, scale or other inorganic compound pre-existing on the other electrode is removed and further such that the other electrode remains substantially clean.

563574

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