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US 6,306,533 B1Granted
Cooling system for a fuel cell battery
AssigneeSiemens Aktiengesellschaft
InventorsKonrad Mund, Rittmar von Helmolt
Life of this patent
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Abstract
A cooling system for a battery of fuel cells that contains at least two fuel cells, each of which comprises a membrane-electrode unit and two collector plates is disclosed. Cooling cards supplied with coolant and that are connected to one another via lines are thereby arranged between the individual fuel cell units.
Claims16
A battery comprising:
- at least two fuel cell units, each fuel cell unit comprising a membrane-electrode unit disposed between two collector plates and having a bipolar plate,
- the battery further comprising at least one cooling card being mounted in the bipolar plate between two fuel cells and in thermal contact to one of the collector plates of each of said two fuel cells,
- the cooling card comprising a chamber for accommodating coolant, the chamber being connected to an input line and an output line for circulating coolant through the cooling card,
- the fuel cells being disposed between the input and output lines.
1 more element
A method of manufacturing a fuel cell battery comprising the steps of:
- providing at least two fuel cell units, each fuel cell unit comprising a membrane-electrode unit disposed between two collector plates and having a bipolar plate,
- providing at least one cooling card comprising a chamber for accommodating coolant, the chamber being connected to an input line and an output line for circulating coolant through the cooling card,
- placing the cooling card between the two fuel cell units with the fuel cell units being mounted in the bipolar plate and between the input and output lines,
- connecting the cooling card to the two fuel cell units with an adhesive.
1 more element
A battery comprising:
- at least two fuel cell units, each fuel cell unit comprising a membrane-electrode unit disposed between two collector plates and having a bipolar plate,
- the battery further comprising at least one cooling card being mounted in the bipolar plate between two fuel cells and in contact to one of the collector plates of each of said two fuel cells,
- the cooling card comprising a chamber for accommodating coolant, the chamber being connected to an input line and an output line for circulating coolant through the cooling card,
- the fuel cells being disposed between the input and output lines and extending perpendicularly between the input and output lines,
- the fuel cells and cooling card being disposed parallel to one another and in a stacked configuration.
2 more elements
Dependencies are inferred from the claim text.