Lg Chem, Ltd

Hye Mi Jung

Jae Choon Yang

Jee Hoon Jeong

Chang Sun Kong

Kyung Mun Kang

Yoo Seok Kim

Sueng Hoon Han

Fuel cell stacks may include a plurality of fuel cells including a membrane-electrode assembly that includes an anode electrode and a cathode electrode, gas diffusion layers respectively on opposing sides of the membrane-electrode assembly, a first separating plate having a first surface facing the anode electrode so as to be in contact with the gas diffusion layer and a second surface opposite to the first surface, and a second separating plate having a first surface facing the cathode electrode so as to be in contact with the gas diffusion layer and a second surface opposite to the first surface. At least one of the second surface of the first separating plate and the second surface of the second separating plate may include one or more protrusions protruding therefrom outwardly.

Fuel cell stack

The present application relates to a porous body quality inspection apparatus and a method for inspecting quality of a porous body, and according to one aspect of the present application, there is provided a porous body quality inspection apparatus comprising a contact resistance measuring part of a porous body with a gas diffusion layer, a pressurizing part for pressurizing a pressure-sensitive discoloration base material on the porous body, an image mapping part for calculating a contact area between the pressure-sensitive discoloration base material and the porous body, a transporting part for transporting the porous body and the pressure-sensitive discoloration base material, and an operation part for performing an operation of an interfacial contact resistance between the porous body and the gas diffusion layer.

Porous body quality inspection apparatus and method for inspecting quality of porous body

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 formed of a metallic material and having a plurality of pores, wherein some regions have a hydrophilic surface and some other regions have a hydrophobic surface.

Separator, and fuel cell stack comprising the same

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.

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.

A fuel cell including a separator having a plurality of unit bodies continuously arranged along a first direction and arranged apart at predetermined intervals along a second direction orthogonal to the first direction, wherein each of the unit bodies has a wedge shape having a first inclined surface and a second inclined surface, connected at a predetermined angle at a vertex portion and two unit bodies adjacent along the second direction are arranged so that each vertex portion is not coaxially located with respect to a virtual line parallel to the second direction.

The present invention relates to a separation plate, a manufacturing method therefor, and a fuel cell stack comprising the same, and according to one aspect of the present invention, provided is a separation plate having: a first surface and a second surface in a direction opposite to that of the first surface; a plurality of channel elements protruding from the second surface toward the first surface, wherein each of the channel elements is arranged to have an inlet port and an outlet port along the flowing direction of a fluid flowing on the first surface; and a rib having a height varying along the circumferential direction of a virtual axis connecting the inlet port and the outlet port, wherein at least a partial region of an outer surface of the rib is formed into a cycloid curved surface along the circumferential direction of the virtual axis.

Separation plate, manufacturing method therefor, and fuel cell stack comprising same

The present invention relates to an apparatus and a method for manufacturing a channel plate, and according to one aspect of the present invention, there is provided an apparatus for manufacturing a channel plate, which is a manufacturing apparatus for forming a channel for transferring a substance to a plate, comprising a slitting unit provided to have a predetermined pattern for forming a plurality of openings on the plate in a transport process of the plate and a pressing unit provided to form a channel on the plate by pressurizing the opening region of the plate passing through the punching unit to bend it in a predetermined angle and direction.

Manufacturing apparatus and method for channel plate

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 riblet elements arranged to be spaced apart at a predetermined interval; and a plurality of connecting bars connecting two adjacent riblet elements, wherein each of the riblet elements comprises a contact portion having a predetermined area, and a first partition wall and a second partition wall each extended from both sides of the contact portion, the space formed by the first partition wall, the contact portion and the second partition wall is opened along the connection direction of the connecting bar, and at least two riblet elements are provided such that each of the contact portions has a different area.

Separator having a plurality of riblet elements connected by a plurality of connecting bars, and fuel cell stack comprising the same

The present invention relates to a separating plate, a method for manufacturing the same, and a fuel cell stack comprising the same. An aspect of the present invention provides a separating plate comprising: a plurality of channels extending in elongated shapes along a first direction, respectively; and a plurality of riblet elements provided to connect side walls of two adjacent channels along a second direction, which is perpendicular to the first direction, wherein the plurality of riblet elements, which connect side walls of two adjacent channels, are spaced by a predetermined interval along the first direction, and a separating plate, which is provided with a first opening, is provided between two riblet elements, which are adjacent to each other along the first direction.

Separating plate, method for manufacturing same, and fuel cell stack comprising same

The present invention relates to a separating plate and a fuel cell stack including same. According to an embodiment of the present invention, a separating plate is provided defining a coolant passage capable of uniform coolant supply and heat recovery across all areas of a reaction region, the separating plate can easily regulate the temperature of a reaction surface, and a reduction in performance and durability due to thermal load can be prevented.

Growing community of inventors

Daejeon, South Korea

Hye Mi Jung