Electrolyser cell unit with flat separator
OwnerZoltan HERCZ, Per HJALMARSSON +2inventors
InventorsZoltan HERCZ, Per HJALMARSSON, Christopher James NOBBS, Duncan Albert Wojciech GAWEL
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Abstract
The present application relates to an electrolyser cell unit having a cell layer (1314) comprising an electrochemically active cell area (1350), the cell layer (1314) having a first side (1315a) and a second side (1315b). The cell unit defines a first fluid flow region (1360) for delivery of fuel to the first side (1315a) of the cell layer (1314) and a second fluid flow region (1365) for exhaust of a fluid from said second side (1315b) of the cell layer (1314). The cross-sectional area of the second fluid flow region (1365) is smaller than the cross-sectional area of the first fluid flow region (1360).
Claims29
An electrolyser cell unit comprising:
- a cell layer comprising an electrochemically active cell area, the cell layer having a first side and a second side;
- a first fluid flow region for delivery of fuel to the first side of the cell layer;
- and
- a second fluid flow region for exhaust of a fluid from said second side of the cell layer, wherein the cross-sectional area of the second fluid flow region is smaller than the cross-sectional area of the first fluid flow region.
5-9. (canceled)
16-17. (canceled)
19-20. (canceled)
(canceled)
24-25. (canceled)
28-29. (canceled)
31-37. (canceled)
A method for manufacturing an electrolyser cell unit comprising:
- providing a separator plate having a first side and a second side;
- providing a cell layer comprising an electrochemically active cell area, the cell layer having a first side and a second side;
- and
- overlying the separator plate and the cell layer such that the second side of the separator plate overlies and faces the first side of the cell layer, wherein the cell layer and/or the separator plate provide a first fluid flow region for delivery of fuel to the first side of the cell layer and a second fluid flow region for exhaust of a fluid from said second side of the cell layer, wherein the cross-sectional area of the second fluid flow region is smaller than the cross-sectional area of the first fluid flow region.
39-40. (canceled)
A method of operating an electrolyser cell unit comprising
- providing a fuel to a first fluid flow region for delivery of fuel to a first side of an electrochemically active cell area;
- exhausting a fluid from a second fluid flow region for exhaust of the fluid from a second side of the electrochemically active cell area;
- and
- controlling the flow rate of fluid in the first fluid flow region at a flow rate at least twice the flow rate of fluid in the second fluid flow region.
(canceled)
Dependencies are inferred from the claim text.