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US 8,133,636 B2Granted
Fuel cell stack and manufacturing method of the same
AssigneeSamsung SDI Co., Ltd.
InventorsYeong-chan Eun, Seong-jin An, Jun-ho Sauk, Gill-tae Roh, Seok-rak Chang
Life of this patent
Estimating the term…
Abstract
A fuel cell stack includes a membrane electrode assembly including an anode electrode, a cathode electrode, and an electrolyte membrane positioned between the anode electrode and the cathode electrode; a separator including a channel for a flow of fuel and oxidant and closely adhered to the membrane electrode assembly; and a gasket with a two-layer structure stacked between the separator and the membrane electrode assembly.
Claims13
A fuel cell stack, comprising:
- a membrane electrode assembly comprising an anode electrode, a cathode electrode, and an electrolyte membrane positioned between the anode electrode and the cathode electrode;
- a separator including at least one channel for a flow of fuel and/or oxidant and being closely adhered to the membrane electrode assembly, wherein the separator comprises a seat groove;
- and
- a gasket comprising a first layer and a second layer structure stacked between the separator and the membrane electrode assembly, wherein the first layer is seated in the seat groove, wherein a thickness of the first layer is greater than a thickness of the second layer, wherein the second layer contacts the membrane electrode assembly, and wherein the first layer directly contacts the membrane electrode assembly around the second layer in at least two places.
1 more element
A fuel cell stack, comprising:
- a plurality of stacked membrane electrode assemblies;
- a plurality of separators, each separator including at least one channel for a flow of fuel and/or oxidant and being closely adhered to one of the membrane electrode assemblies;
- and
- a plurality of gaskets, each gasket having a two-layer structure and being stacked between one of the separators and one of the membrane electrode assemblies, wherein a first gasket layer is seated in a seat groove formed in at least one of the plurality of separators, wherein a second gasket layer contacts at least one of the plurality of stacked membrane electrode assemblies, and wherein the first gasket layer directly contacts the at least one of the membrane electrode assemblies around the second gasket layer in at least two places.
1 more element
A fuel cell stack comprising:
- a plurality of membrane electrode assemblies, each comprising an anode electrode, a cathode electrode and an electrolyte membrane positioned between the anode electrode and the cathode electrode;
- for each membrane assembly, a first separator adhered to the membrane electrode assembly at a side of the electrolyte membrane having the anode electrode and a second separator adhered to the membrane electrode at a side of the electrolyte membrane having the cathode electrode;
- and
- for each membrane assembly, a first gasket having a first layer and a second layer structure stacked between the first separator and the membrane electrode assembly at the side having the anode electrode, the first layer seated in a first seat groove formed in the first separator, the first layer having a thickness greater than the thickness of the second layer, the second layer contacting the anode side of the membrane electrode assembly, the first layer directly contacting the anode side of the membrane electrode assembly around the second layer in at least two places, and a second gasket with a two-layer structure stacked between the second separator and the membrane electrode assembly at the side having the cathode electrode.
1 more element
Dependencies are inferred from the claim text.