Separator, and fuel cell stack comprising the same
AssigneeLG Chem, Ltd.
InventorsHye Mi JUNG, Jae Choon YANG, Kyung Mun KANG, Sueng Hoon HAN
Life of this patent
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Abstract
A separator and a fuel cell stack, the separator including a plurality of convex portions and a plurality of concave portions which are sequentially provided along a first direction, the convex portions having first openings on top surfaces at predetermined intervals along a second direction orthogonal to the first direction and the first openings of two adjacent convex portions are each provided so as not to be positioned coaxially based on a virtual first line parallel to the first direction.
Claims16
A separator comprising a plurality of convex portions and a plurality of concave portions which are sequentially provided along a first direction,
- wherein first openings are each provided on a top surface of the respective convex portion, the first openings are provided at predetermined intervals along a second direction orthogonal to the first direction,
- wherein the first openings of two adjacent convex portions are each provided so as not to be positioned coaxially based on a virtual first line parallel to the first direction,
- wherein each first opening is formed to have a length along the first direction larger than a width along the second direction, and
- wherein each first opening is formed over the respective top surface and a partial area of a partition of the respective convex portion.
A separator comprising a plurality of convex portions and a plurality of concave portions which are sequentially provided along a first direction,
- wherein first openings are each provided on a top surface of the respective convex portion, the first openings are provided at predetermined intervals along a second direction orthogonal to the first direction,
- at least one convex portion comprises a partition connected to an adjacent concave portion and a top surface connected to the partition,
- at least one concave portion comprises a partition connected to an adjacent convex portion and a bottom surface connected to the partition,
- the top surface and the bottom surface are each inclined at a predetermined angle with respect to the partitions,
- the first openings of two adjacent convex portions are each provided so as not to be positioned coaxially based on a virtual first line parallel to the first direction,
- each first opening is formed to have a length along the first direction larger than a width along the second direction, and
- the respective first opening is formed over the top surface of the at least one convex portion and a partial area of the partition of the at least one convex portion.
A fuel cell stack comprising:
- a membrane-electrode assembly;
- a gas diffusion layer provided on one side of the membrane-electrode assembly;
- and
- a separator disposed so that at least some regions of the separator are in contact with the gas diffusion layer,
- wherein the separator comprises a plurality of convex portions in contact with the gas diffusion layer and a plurality of concave portions which are not in contact with the gas diffusion layer,
- wherein the convex portions and the concave portions are successively provided along a first direction in sequence,
- wherein first openings are each provided on a respective top surface of a respective convex portion, the first openings are provided at predetermined intervals along a second direction orthogonal to the first direction,
- wherein the first openings of two adjacent convex portions are each provided so as not to be positioned coaxially based on a virtual first line parallel to the first direction,
- wherein each first opening is formed to have a length along the first direction larger than a width along the second direction, and
- wherein each first opening is formed over the respective top surface of the respective convex portion and a partial area of a respective partition of the convex portion.
Dependencies are inferred from the claim text.