Separator, and fuel cell stack comprising the same
AssigneeLG Chem, Ltd.
InventorsChang Sun KONG, Hye Mi JUNG, Jae Choon YANG
Life of this patent
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Abstract
The present invention relates to a separator and a fuel cell stack comprising the same, and according to one aspect of the present invention, there is provided a separator comprising a plurality of channels including a bottom forming a flow space for a reaction gas to flow and a pair of sidewalls connected to the bottom, and a plurality of ribs provided so as to connect the sidewalls of two adjacent channels, wherein the sidewall of the channel is provided with a water storage part which is recessed inward and has a first inclined surface and a second inclined surface connected by a first angle.
Claims18
A separator comprising a plurality of channels for a flow of reaction gas, the separator comprising:
- a plurality of bottoms;
- a plurality of pairs of sidewalls, each of the plurality of pairs of sidewalls being connected to a respective one of the plurality of bottoms, and the plurality of channels being defined by the plurality of bottoms and the plurality of pairs of sidewalls;
- and
- a plurality of ribs, each of the plurality of ribs connecting two adjacent sidewalls of the plurality of pairs of sidewalls,
- wherein each of the plurality of pairs of sidewalls comprises a water storage part that comprises a recess defined by a first inclined surface and a second inclined surface that are connected to each other and form a first angle.
A fuel cell stack comprising:
- a membrane-electrode assembly;
- a gas diffusion on the membrane-electrode assembly;
- and
- a separator at least partially contacting the gas diffusion layer,
- wherein the separator comprises a plurality of channels for a flow of reaction gas and comprises:
- a plurality of bottoms;
- a plurality of pair of sidewalls, each of the plurality of pairs of sidewalls being connected to a respective one of the plurality of bottoms, and the plurality of channels being defined by the plurality of bottoms and the plurality of pairs of sidewalls;
- and
- a plurality of ribs, each of the plurality of ribs connecting two adjacent sidewalls of the plurality of pair of sidewalls and contacting the gas diffusion layer, and
- wherein each of the plurality of pairs of sidewalls comprises a water storage part that is configure to store water and comprises a recess defined by a first inclined surface and a second inclined surface that are connected to each other and form a first angle.
Dependencies are inferred from the claim text.