US 6,554,978 B1Granted

High pressure electrolyzer module

AssigneeVandenborre Technologies NV

InventorHugo Vandenborre

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Abstract

A high pressure electrolyzer as represented in the figure, having a number of electrolysis chambers being held in frame (1), being separated by membrane (2) to which the electrodes (3) are pressed. The electrodes are electrically connected to the bipolar plate (4) with a metal woven sheet (5). The frame has the larger conduit openings (7) on the top side and (8) on the bottom side. Conduit openings (7) evacuate the gas that is generated and openings (8) form a supply channel of electrolyte. Opening (7) is connected to the electrolyzer module's inner space with the small connecting conduit (9) and similarly opening (8) is connected to the inner space via small connecting conduit (10). A ring shaped frame having conduit openings for the supply of electrolyte and the removal of the gasses that are generated and further having a connecting surface with concentric elevations and depressions.

Claims9

Dependent claims

A high pressure electrolyser module comprising a series of stacked electrolysis chambers, each chamber being held within a first and a second ring-shaped holding frame, and each of said ring-shaped holding frames having an outer wall and an inner wall and a first and a second connecting surface, such that said second connecting surface of said first ring-shaped holding frame and said first connecting surface of said second ring-shaped holding frame are adjacent connecting surfaces, each of said ring-shaped holding frames further having circular shaped openings that form conduits for the supply of electrolyte and the removal of gas that is generated, wherein

(1) said connecting surfaces of said ring-shaped frames have one or more elevations and/or one or more depressions in such a manner that in said adjacent connecting surfaces, said elevations fit in said depressions;
(2) a flat gasket is placed between said adjacent connecting surfaces;
(3) the distance between said outer wall and said circular shaped openings forming gas or electrolyte conduits is at least 1.5 cm;
(4) the diameter of said conduits is in the range of from 1 cm to 3 cm.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 09/807,456Filed 1 Jun 2001
Priority: EP 9820341512 Oct 1998
Granted: 29 Apr 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

C25B 9/05
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies;…: pressure cells
C25B 9/75
Of the filter-press type: having bipolar electrodes
C25B 9/77
Of the filter-press type: having diaphragms
C25B 15/087
Supplying or removing reactants or electrolytes; Regeneration of electrolytes: recycling of electrolyte to electrochemical cell