Stack and fuel cell system having the same
OwnerDong-Myung Suhinventor
Life of this patent
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Abstract
A stack for a fuel cell system including at least one electricity generation unit. The at least one electricity generation unit includes a membrane-electrode assembly and a separator disposed on at least one planar surface of the membrane-electrode assembly. The at least one electricity generation unit has an input end and an output end. An input end plate and an output end plate are disposed adjacent to the input end and the output end, respectively, the input end plate and the output end plate having reinforcement ribs formed on a surface.
Claims26
A stack for a fuel cell system comprising:
- at least one electricity generation unit, the at least one electricity generation unit including a membrane-electrode assembly and a separator disposed on at least one planar surface of the membrane-electrode assembly, the at least one electricity generation unit having an input end and an output end;
- and
- an input end plate disposed adjacent to the input end and an output end plate disposed adjacent to the output end, the input end plate having reinforcement ribs formed on an input plate surface and the output end plate having reinforcement ribs formed on an output plate surface.
A fuel cell system comprising:
- a stack generating electrical energy through an electro-chemical reaction of hydrogen and oxygen;
- a fuel supply source supplying fuel containing hydrogen to the stack;
- and
- an oxygen supply source supplying oxygen to the stack,
- wherein the stack includes at least one electricity generation unit, the at least one electricity generation unit having a membrane-electrode assembly and a separator disposed on at least one planar surface of the membrane-electrode assembly, the at least one electricity generation unit having an input end and an output end, and an input end plate disposed adjacent to the input end and an output end plate disposed adjacent to the output end, the input end plate having reinforcement ribs formed on an input plate surface and the output end plate having reinforcement ribs formed on an output plate surface.
A stack for a fuel cell system comprising:
- at least one electricity generation unit, the at least one electricity generation unit including a membrane-electrode assembly and a separator disposed on at least one planar surface of the membrane-electrode assembly, the at least one electricity generation unit having an input end and an output end;
- an input end plate disposed adjacent to the input end and an output end plate disposed adjacent to the output end;
- and
- reinforcement ribs formed on at least one of an input plate surface of the input end plate and an output plate surface of the output end plate.
A method of improving the resistance to bending of a stack for a fuel cell system, the stack including at least one electricity generation unit, the at least one electricity generation unit including a membrane-electrode assembly and a separator disposed on at least one planar surface of the membrane-electrode assembly, the at least one electricity generation unit having an input end and an output end, the method comprising:
- locating at the input end of the at least one electricity generation unit an input end plate having a plurality of reinforcement ribs;
- and
- locating at the output end of the at least one electricity generation unit an output end plate having a plurality of reinforcement ribs.
Dependencies are inferred from the claim text.