Porous mat electrodes for electrochemical reactor having...

Details Porous mat electrodes for electrochemical reactor having... Porous mat electrodes for electrochemical reactor having...

2005-06-14

2005-06-14

Maples, John S. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S236000, C429S105000, C429S209000, C429S245000, C429S149000, C029S623100

Reexamination Certificate

active

06905797

ABSTRACT:
A multicell assembly for a redox flow electrolyzer is constituted by alternately stacking pre-assembled elements, typically an electrode subassembly including porous mat electrodes on opposite faces of a conductive plate and a permionic membrane subassembly. Pressure drops in circulating the electrolyte solutions through respective cell compartments, in contact with fluid permeable three-dimensional electrodes in the form of porous mats, are reduced while enhancing evenness of electrolyte refreshing over the whole geometrical cell-area, by defining cooperatively interleaved flow channels in the porous mat electrode. Two interleaved orders of parallel flow channels are defined. All the parallel spaced channels of each order extend from a common orthogonal base channel formed along the respective inlet or outlet side of the electrolyte flow chamber, and terminate short of reaching the base channel of the other. The flow channels include comb-shaped flow distributing channelworks having parallel fingers which interleave with each other.

REFERENCES:
patent: 4751153 (1988-06-01), Roth
patent: 4886586 (1989-12-01), Morris
patent: 2004/0202915 (2004-10-01), Nakaishi et al.
patent: 0 814 527 (1997-12-01), None
patent: 2 163 595 (1986-02-01), None

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