A cell structure for a fuel cell including: power generation cell assemblies each including a power generation cell which includes a fuel electrode, an oxidant electrode, and an electrolyte sandwiched therebetween and is configured to generate power by using supplied gases; a separator configured to separate the adjacent power generation cell assemblies from each other; a sealing member disposed between an edge of a corresponding one of the power generation cell assemblies and an edge of the separator and configured to retain any of the gases supplied to the power generation cells between the corresponding power generation cell assembly and the separator; and a heat exchange part disposed adjacent to the sealing member and configured to perform temperature control of the sealing member by using any of the gases supplied to the power generation cells.

A separator includes a base material made of metal plate and a first layer made of corrosion-resistant material and arranged on the entirety of one surface of the base material. The base material includes extending projections and extending recesses. The projections and the recesses are alternately arranged. The separator includes a second layer including a conductive particle and a binder that is made of plastic material, the second layer being arranged only on a part of a surface of the first layer corresponding to a top surface of the projections of the base material. The conductive particle is contained only in the second layer.

A separator includes a base material made of metal plate and a first layer made of corrosion-resistant material and arranged on the entirety of one surface of the base material. The base material includes extending projections and extending recesses. The projections and the recesses are alternately arranged. The separator includes a second layer including a conductive particle and a binder that is made of plastic material, the second layer being arranged only on a part of a surface of the first layer corresponding to a top surface of the projections of the base material. The conductive particle is contained only in the second layer.

Equipment for manufacturing a separator plate for a fuel cell, according to an embodiment of the present disclosure, includes: a first uncoiler uncoiling a first metal strip; a second uncoiler uncoiling a second metal strip; a press receiving the first metal strip and the second metal strip to respectively form patterns thereon; a welding machine overlapping and integrally bonding the first metal strip and the second metal strip, transferred from the press, by a welding process; and a cutter cutting a bonded body of the first metal strip and the second metal strip, transferred from the welding machine, wherein the press, the welding machine, and the cutter are sequentially arranged, and the first metal strip and the second metal strip are passed through the press, the welding machine, and the cutter, while connected to each other, to be processed.

A formed substrate assembly includes an air flow form plate, a fuel flow form plate, and an anode. The fuel flow form plate is positioned over the air flow form plate. The fuel flow form plate partially defines a plurality of first channels. The fuel flow form plate also defines a plurality of second channels. The plurality of second channels defines a plurality of apertures, where a portion of the apertures extend from the plurality of second channels to the plurality of first channels. The anode is positioned over the fuel flow form plate. The anode partially defines the plurality of first channels such that the fuel flow form plate and the anode define the plurality of first channels. The portion of the plurality of apertures is configured to channel a flow of fuel from the plurality of second channels to the plurality of first channels.

A formed substrate assembly includes an air flow form plate, a fuel flow form plate, and an anode. The fuel flow form plate is positioned over the air flow form plate. The fuel flow form plate partially defines a plurality of first channels. The fuel flow form plate also defines a plurality of second channels. The plurality of second channels defines a plurality of apertures, where a portion of the apertures extend from the plurality of second channels to the plurality of first channels. The anode is positioned over the fuel flow form plate. The anode partially defines the plurality of first channels such that the fuel flow form plate and the anode define the plurality of first channels. The portion of the plurality of apertures is configured to channel a flow of fuel from the plurality of second channels to the plurality of first channels.

A multiple perforation plate for fuel cell separators includes virtual flow path hole central lines spaced apart from each other at a constant interval in a length direction corresponding to a flow direction of reaction gas and formed in a width direction perpendicular to the flow direction of the reaction gas, a plurality of flow path holes formed at a constant interval on the flow path hole central lines in the width direction, and expansion parts formed at both sides of a middle point of each of the flow path holes in the width direction so as to have a greater width in the length direction than that of other points of each of the flow path holes.

An anode of a fuel cell has an anode current collector defining an inlet configured to receive fuel gas and an outlet configured to output the fuel gas, a barrier that divides an active area of the anode current collector into a first area and a second area, and a flow passage configured to allow a flow of fuel gas from the inlet through the first area and the second area to the outlet. An obstacle is located in the flow passage in an inactive area of the anode current collector and is configured to change a flow direction of the fuel gas in the flow passage from the first area to the second area to achieve intra-cell mixing of the fuel gas.

An anode of a fuel cell has an anode current collector defining an inlet configured to receive fuel gas and an outlet configured to output the fuel gas, a barrier that divides an active area of the anode current collector into a first area and a second area, and a flow passage configured to allow a flow of fuel gas from the inlet through the first area and the second area to the outlet. An obstacle is located in the flow passage in an inactive area of the anode current collector and is configured to change a flow direction of the fuel gas in the flow passage from the first area to the second area to achieve intra-cell mixing of the fuel gas.

A gas diffusion layer for a fuel cell constituting a unit cell of the fuel cell includes a base layer including short carbon fibers and having a reinforcing portion formed in a predetermined area thereof in a thickness direction with continuous carbon fibers oriented in the reinforcing portion. One method of manufacturing the gas diffusion layer includes preparing a mixed dispersion in which short carbon fibers are mixed, orienting continuous carbon fibers on a conveyor belt, forming a paper having a reinforcing portion in which the continuous carbon fibers are oriented by supplying the prepared mixed dispersion to the conveyor belt on which the continuous carbon fibers are oriented, and forming a base layer by impregnating the paper with a hydrophobic agent.