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US 2010/0136382 A1Published application
Mechanically joined bipolar plates and method therefor
AssigneeGM Global Technology Operations LLC
InventorLEONID C. LEV
Life of this patent
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Abstract
Exemplary embodiments include a product and a method of a bipolar plate assembly having a pair of plates, the bipolar plate assembly being a part of a fuel cell stack. The pair of plates may be joined together at their respective borders by a mechanical forming process.
Claims20
A product comprising:
- a bipolar plate assembly for a fuel cell stack, the bipolar plate assembly including a first plate bounded by a first border and including a second plate bounded by a second border, the first plate and the second plate being joined together at the first and second borders by an overlapping fold.
A method of making a product, the method comprising:
- providing a first plate and a second plate of a bipolar plate assembly for a fuel cell stack;
- holding the first plate and the second plate in an overlapping relationship;
- and
- bending the first plate and the second plate together at a respective border thereof to form a seal between the respective borders.
1 more element
A method of making a product, the method comprising:
- providing a first plate and a second plate of a bipolar plate assembly for a fuel cell stack;
- holding the first plate against the second plate by a workpiece holder;
- overlapping a first border of the first plate with a second border of the second plate;
- and
- sealing the first border and the second border together.
2 more elements
Dependencies are inferred from the claim text.