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US 11,777,114 B2Granted
Cascading stack electrochemical fuel cell
AssigneeInfinity Fuel Cell and Hydrogen, Inc.
InventorsJay LaGrange, John Fayer, James McElroy, William F. Smith
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Abstract
A fuel cell comprising a series of cascaded cell stacks comprising at least one humidifier-degasser coupled to the cell stacks proximate a stack inlet; the at least one humidifier-degasser comprising at least one degasification section fluidly coupled upstream of at least one humidifier section; and at least one inert concentrator cell coupled downstream from the cell stacks proximate a stack vent.
Claims6
A fuel cell comprising:
- a hydrogen removal cell coupled to a fuel inlet, an oxidant inlet and a product water inlet configured to flow liquid water, said hydrogen removal cell comprising a membrane electrode assembly between a product water flow passage configured to flow liquid water and a fuel flow passage, an electrical potential being applied across said membrane electrode;
- an oxidant flow passage coupled to a first catalyzed water transport membrane opposite said product water flow passage;
- the fuel flow passage coupled to a second catalyzed water transport membrane opposite said product water flow passage;
- an electronic hydrogen rate controller electrically coupled to said second catalyzed water transport membrane;
- and
- at least one inert concentrator cell coupled to at least one cell in a cascaded cell stack, said inert concentrator coupled to a stack vent and configured to discharge contaminants from said fuel cell;
- wherein the hydrogen removal cell is located within the cascaded cell stack.
4 more elements
Dependencies are inferred from the claim text.