Hyundai Motor Company

Kia Corporation

Han Gil Ko

Kyung Min Kim

A unit cell for a fuel cell includes an electricity-generating assembly (EGA) in which a gas diffusion layer (GDL) is laminated on each of both sides of a membrane electrode assembly (MEA). The unit cell has a first separator and a second separator disposed on an outside of the EGA and a reaction surface is formed on each of the first and second separators through which a reactive gas flows. A cooling surface is formed on each of the first and second separators opposite the reaction surfaces and through which cooling water flows. A reaction surface gasket is formed on the reaction surface of the first separator, wrapping and fixing a top and bottom of the EGA, and forming an airtight line with the second separator. A cooling surface gasket is formed on the cooling surface of the first separator and forms an airtight line with a second separator of another unit cell disposed adjacent to the unit cell.

Separator unit for a fuel cell and a unit cell for a fuel cell including same

A separator unit for a fuel cell includes a separator including a reaction region, a plurality of manifolds formed on each side of the reaction region, and a reaction surface and a cooling surface formed on each surface thereof, a reaction surface internal gasket forming a reaction surface internal airtight line, and a reaction surface external gasket forming a reaction surface external airtight line, wherein at least one cut portion formed by removing the reaction surface external gasket is formed in the reaction surface external airtight line surrounding at least one of the plurality of manifolds.

Separator unit for fuel cell and unit cell for fuel cell including same

Disclosed is a separator assembly for a fuel cell and a fuel cell stack including the same. The separator assembly includes (I) a plate-shaped first separator including a first reaction area where a flow path to which a reaction gas or a coolant flows on a center thereof and first manifolds to which the reaction gas or the coolant is introduced or discharged to opposite side areas of the first reaction area, and (ii) a plate-shaped second separator integrated with the first separator by bonding and including a second reaction area corresponding to a position where the first reaction area is formed and second manifolds communicating with the first manifolds. The first and second separators may have at least a portion of an inner edge of the respective first and second manifolds that are bent, thereby being disposed on an interface between the first and second separators.

Growing community of inventors

Yongin-Si, South Korea

Han Gil Ko