Fuel cell
AssigneeHonda Motor Co., Ltd.
InventorsSeiji Sugiura, Shuhei Goto
Life of this patent
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Abstract
A coolant supply passage, a coolant discharge passage, and an air-releasing passage extend through first and second metal plates of a metal separator in a stacking direction of the first and second metal plates. The coolant supply passage and the coolant discharge passage are provided at vertically middle positions of opposite horizontal ends of the separator. A coolant flow field is connected between the coolant supply passage and the coolant discharge passage. The air-releasing passage for releasing air from the coolant flow field is formed above the coolant discharge passage. At least part of the air-releasing passage is positioned above the top of the coolant flow field.
Claims6
A fuel cell comprising:
- an electrolyte electrode assembly including a pair of electrodes and an electrolyte interposed between said electrodes;
- separators for sandwiching said electrolyte electrode assembly,
- wherein a reactant gas supply passage, a reactant gas discharge passage, a coolant supply passage, and a coolant discharge passage extend through said fuel cell in a stacking direction of said fuel cell;
- a coolant flow field connected between said coolant supply passage and said coolant discharge passage is formed along a surface of said separator;
- said coolant supply passage is provided at a vertically middle position of one horizontal end of said separator, and said coolant discharge passage is provided at a vertically middle position of the other horizontal end of said separator;
- and
- an air-releasing passage for releasing air from said coolant flow field is formed at an upper position of the other horizontal end of said separator such that at least part of said air-releasing passage is positioned above a top of said coolant flow field.
Dependencies are inferred from the claim text.