公开(公告)号：CA2662228A1

公开(公告)日：2009-12-10

申请号：CA2662228

申请日：2009-04-09

Applicant: GEN ELECTRIC

Inventor： ZAPPI GUILLERMO DANIEL ,  SWALLA DANA RAY ,  ZARNOCH KENNETH PAUL ,  HUNTLEY CHRISTIAN ANDREW

IPC: C25D7/00 ,  C25B9/19

Abstract: The present techniques provide electrochemical devices having enhanced electrodes (46) with surfaces that facilitate operation, such as by formatio n of a porous nickel layer on an operative surface, particularly of the cathode (50 ). The porous metal layer increases the surface area of the electrode (46), which m ay result in increasing the efficiency of the electrochemical devices. The formation o f the porous metal layer is performed in situ, that is, after the assembly of the electrodes (46) into an electrochemical device. The in situ process offers a number of advantages, including the ability to protect the porous metal layer on the electrode surface from damage during assembly of the electrochemical device. The enhanced electrode (46) and the method for its processing may be used in any number o f electrochemical devices, and is particularly well suited for electrodes in a n electrolyzer (100) useful for splitting water (12) into hydrogen (14) and oxygen (16).

公开(公告)号：CA2662225A1

公开(公告)日：2009-12-10

申请号：CA2662225

申请日：2009-04-09

Applicant: GEN ELECTRIC

Inventor： SWALLA DANA RAY

IPC: C25B9/19

Abstract: The present techniques provide systems and methods for assembling electrolyzers (66) from parts which have internal structures that form fluid flow channels (34, 35, 60, 64) when placed adjacent to one another. In a contemplated embodiment, the assembly technique may use alignment bars (98, 100), inserte d through openings in the individual parts to hold the parts in alignment, whi le other structures apply pressure to hold the structure together. In another contemplated embodiment, the parts may be aligned by having ridges, or other protrusions (102), formed on the parts that mate with openings on adjacent parts. The applied pressure seals fluid flow channels (34, 35, 60, 64) formed in the electrolyzer (66) a nd extending through the joined parts. The use of pressure to hold the structur e together allows for the servicing and replacement of individual parts.