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(11) | EP 2 544 283 A8 |
| (12) | CORRECTED EUROPEAN PATENT APPLICATION |
| published in accordance with Art. 153(4) EPC |
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| (54) | FUEL CELL |
| (57) A fuel cell is configured to comprise a power generation layer including an electrolyte
membrane, an anode and a cathode, separators and a gas flow path layer provided between
the power generation layer and the separator. The gas flow path layer is structured
by a plurality of corrugated elements. Each corrugated element has a corrugated cross
section where first convexes that are convex toward the separator and second convexes
that are convex toward the power generation layer are alternately arranged. The plurality
of corrugated elements are arranged, such that a top surface of the first convex in
one corrugated element and a bottom surface of the second convex in an adjacent corrugated
element cooperatively form an integral surface, and a plurality of through holes are
formed between the respective adjacent corrugated elements. The plurality of corrugated
elements include a corrugated element having positions of the first convexes and the
second convexes shifted in a positive side of the first direction from those of an
adjacent corrugated element, and a corrugated element having positions of the first
convexes and the second convexes shifted in a negative side of the first direction
from those of an adjacent corrugated element. The volume of a first reaction gas flow
path, which is formed along the positions of the second convexes on a separator-side
of the gas flow path layer, is less than the volume of a second reaction gas flow
path, which is formed along the positions of the first convexes on a power generation
layer-side of the gas flow path layer.
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