Stack for fuel cell and fuel cell system with the same
OwnerYoung-Seung Na, Jun-Won Suhinventors
Life of this patent
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Abstract
A fuel cell stack includes at least one electric generator with a membrane electrode assembly and separators placed at both sides of the membrane electrode assembly. A plurality of common passages are arranged at a surface of at least one of the separators to permit the flow of oxygen and a coolant. A guide is formed at an inlet of the common passage to guide the oxygen and the coolant into the common passage.
Claims27
A fuel cell stack comprising:
- an electric generator for generating electrical energy through reacting hydrogen with oxygen, the electric generator including at least one common passage adapted to receive an oxidant and a coolant, the at least one common passage comprising an inlet with a first sectional area and an outlet with a second sectional area, wherein the first sectional area is larger than the second sectional area.
A fuel cell stack for generating electrical energy through electrochemically reacting hydrogen with oxygen, the fuel cell stack comprising an electric generator comprising:
- a membrane electrode assembly;
- separators placed at both sides of the membrane electrode assembly, wherein at least one of the separators includes at least one common passage arranged at a surface of the corresponding separator and adapted to permit the flow of the oxygen and a coolant, and a guide formed at an inlet of the at least one common passage to guide the oxygen and the coolant into the corresponding common passage.
A fuel cell stack comprising:
- a plurality of electric generators arranged adjacent one another for generating electrical energy through electrochemically reacting hydrogen with oxygen;
- a cooling passage formed between a pair of adjacent electric generators and adapted to permit a flow of a coolant;
- and
- a guide formed at an inlet of the cooling passage to guide the coolant into the cooling passage.
An electric generator assembly for a fuel cell comprising:
- a membrane electrode assembly;
- separators placed at both sides of the membrane electrode assembly;
- a fuel passage formed on a surface of at least one of the separators and adapted for the flow of a fuel;
- and
- a guide formed at an inlet of the fuel passage to guide the fuel into the fuel passage.
A fuel cell system comprising:
- a stack comprising an electric generator with a membrane electrode assembly, separators placed at both sides of the membrane electrode assembly, a plurality of common passages arranged at a surface of at least one of the separators and adapted to permit the flow of oxygen and a coolant, and a guide formed at an inlet of each common passage to guide the oxygen and the coolant into the common passage;
- a fuel supplier for supplying a fuel to the stack;
- and
- an oxygen supplier for supplying oxygen to the common passage.
A fuel cell system comprising:
- a stack comprising a plurality of adjacent electric generators;
- a fuel supplier for supplying a fuel to the stack;
- an oxygen supplier for supplying a source of oxygen to the stack;
- and
- a coolant supplier for supplying a coolant to the stack, wherein the stack comprises at least one cooling passage formed between adjacent electric generators and adapted to permit a flow of the coolant, and a guide formed at an inlet of the cooling passage to guide the coolant into the cooling passage.
Dependencies are inferred from the claim text.