Abstract: Provided are a method and system for detecting a UAV using a plurality of image sensors. A method of detecting a UAV includes detecting, by each of a plurality of detection image sensors, a UAV in a UAV detection area, transmitting, when the UAV is detected, position information of the detection image sensor detecting the UAV and distance information of the UAV to a classification image sensor, acquiring, by the classification image sensor, a magnified image of the UAV by setting a parameter of a camera of the classification image sensor according to the position information and the distance information, and classifying a type of the UAV by analyzing the magnified image.

Abstract: A method and device for detecting an illegal unmanned aerial vehicle (UAV) using a radio wave wall are provided. The method includes generating a radio wave wall between a plurality of reconnaissance UAVs that include a first reconnaissance UAV and second reconnaissance UAVs, using one or more wireless signals transmitted and received between the plurality of reconnaissance UAVs, and determining whether an illegal UAV enters the radio wave wall based on radio signal strengths of wireless signals received from the second reconnaissance UAVs.

Abstract: A frame gasket may include a flat base, which is positioned along the edge of stack constitutional parts and which includes a first elastic base and reinforced fibers mixed therein to ensure sealing of a fuel cell stack, and first projection units, which project over the base and which include a second elastic base.

Abstract: The present disclosure relates to an elastomeric cell frame for a fuel cell, a method of manufacturing the same, and a unit cell using the same, in which the elastomeric cell frame is integrally bonded to a membrane electrode assembly and a gas diffusion layer using a pair of elastomeric frames without a separate adhesive member. An elastomeric cell frame of a unit cell of a fuel cell according to an exemplary embodiment of the present disclosure includes: an insert including a membrane electrode assembly and a pair of gas diffusion layers disposed on and bonded to opposite surfaces of the membrane electrode assembly; and an elastomeric frame including a pair of elastomeric frames which is bonded to each other and has portions disposed on a lower surface and an upper surface of a rim of the insert, respectively, in an outer region of the insert.

Abstract: A fuel cell separator includes a first separator plate and a second separator plate for an anode or a cathode. The first and second separator plates are adjacent to each other for assembly in a fuel cell stack. A first protrusion is formed at an edge portion of the first separator plate and protrudes toward the second separator plate arranged facing the first separator plate. A second protrusion is formed at an edge portion of the second separator plate and protrudes toward the first separator plate arranged facing the second separator plate. With the first and second separator plates adjacent to each other, since side surfaces of the first and second protrusions push each other, assembly positions of the first and second separator plates are regulated. The first and second protrusions are arranged such that opposing side surfaces thereof are spaced from each other. A third gasket is arranged in a gap between the first and second protrusions.

Abstract: A unit cell for a fuel cell is provided. The unit cell includes an insert including a Membrane-Electrode Assembly having a first pair of electrode layers formed on a first surface of a polymer electrolyte membrane and a second pair of electrode layers formed on a second surface of the polymer electrolyte membrane, an elastomer frame bonded at a rim of the insert in an outer area of the insert, the elastomer frame having a reaction surface through-hole in which the insert is disposed formed therein and having a plurality of frame manifold through-holes, through which a reactant gas can flow or be discharged, formed at both sides of and spaced apart from the reaction surface through-hole, and a pair of separators, each separator disposed on a respective side of the insert and the elastomer frame.

Abstract: A unit cell of a fuel cell includes: an insert including a membrane electrode assembly and a gas diffusion layer; a foamed body disposed on an outer side surface of the insert; and a frame covering an outer side surface of the foamed body such that a polymer resin is injected to the outer side surface of the foamed body while the polymer resin partly penetrates into the foamed body.

Abstract: An elastomeric cell frame forming a unit cell of a fuel cell stack may include an insert in which a membrane electrode assembly and a pair of gas diffusion layers are bonded to each other; and an elastomeric frame disposed to surround a periphery of side surfaces of the insert, in which the side surfaces of the insert are positioned between the upper and lower surfaces of the insert, one of upper and lower surfaces of the insert and side surfaces of the insert and bonded with the periphery of the surface of the insert and the side surfaces of the insert into an integrated structure by thermal bonding.

Abstract: A fuel cell stack is provided to improve the flow of cooling water and reactant gas. The fuel cell stack includes a cooling water diffusion portion provided on each of the anode separator and the cathode separator. A first cooling water flow path area is provided between a land formed on the cooling water diffusion portion of the anode separator and a channel formed on the cooling water diffusion portion of the cathode separator. A second cooling water flow path area is provided between a channel formed on the cooling water diffusion portion of the anode separator and a land formed on the cooling water diffusion portion of the cathode separator. In addition, the first cooling water flow path area and the second cooling water flow path area are parallel with each other within at least a part of the cooling water diffusion portions.

Abstract: A fuel cell stack may include stacking multiple cell units, each of which has a metal first separator plate and a second separator plate positioned opposite to the first separator plate with a membrane electrode assembly interposed therebetween, wherein the first and second separator plates of adjacent cell units are disposed to face each other and bonded to each other by an adhesive, the adhesive having an adhesive property varying according to a temperature change.

Abstract: A frame gasket may include a flat base, which is positioned along the edge of stack constitutional parts and which includes a first elastic base and reinforced fibers mixed therein to ensure sealing of a fuel cell stack, and first projection units, which project over the base and which include a second elastic base.

Abstract: The present disclosure relates to an elastomeric cell frame for a fuel cell, a method of manufacturing the same, and a unit cell using the same, in which the elastomeric cell frame is integrally bonded to a membrane electrode assembly and a gas diffusion layer using a pair of elastomeric frames without a separate adhesive member. An elastomeric cell frame of a unit cell of a fuel cell according to an exemplary embodiment of the present disclosure includes: an insert including a membrane electrode assembly and a pair of gas diffusion layers disposed on and bonded to opposite surfaces of the membrane electrode assembly; and an elastomeric frame including a pair of elastomeric frames which is bonded to each other and has portions disposed on a lower surface and an upper surface of a rim of the insert, respectively, in an outer region of the insert.

Abstract: A frame gasket may include a flat base, which is positioned along the edge of stack constitutional parts and which includes a first elastic base and reinforced fibers mixed therein to ensure sealing of a fuel cell stack, and first projection units, which project over the base and which include a second elastic base.

Abstract: A separator assembly for a fuel cell includes: a first separator having a protruding bead seal providing a seal; a second separator joined to the first separator to be integrated therewith and having an arched bulge protruding in the same direction as the bead seal at a location corresponding to a location where the bead seal is formed; a gasket provided on a concave surface of the bulge of the second separator at the location where the bulge is formed, the concave surface being opposite to a convex surface of the bulge; and a sealing agent applied to a convex surface of the bead seal of the first separator at the location where the bead seal is formed.

Abstract: A fuel cell stack may include stacking multiple cell units, each of which has a metal first separator plate and a second separator plate positioned opposite to the first separator plate with a membrane electrode assembly interposed therebetween, wherein the first and second separator plates of adjacent cell units are disposed to face each other and bonded to each other by an adhesive, the adhesive having an adhesive property varying according to a temperature change.

Abstract: A unit cell of a fuel cell includes: an insert including a membrane electrode assembly and a gas diffusion layer; a foamed body disposed on an outer side surface of the insert; and a frame covering an outer side surface of the foamed body such that a polymer resin is injected to the outer side surface of the foamed body while the polymer resin partly penetrates into the foamed body.

Abstract: A fuel cell separator includes a first separator plate and a second separator plate for an anode or a cathode. The first and second separator plates are adjacent to each other for assembly in a fuel cell stack. A first protrusion is formed at an edge portion of the first separator plate and protrudes toward the second separator plate arranged facing the first separator plate. A second protrusion is formed at an edge portion of the second separator plate and protrudes toward the first separator plate arranged facing the second separator plate. With the first and second separator plates adjacent to each other, since side surfaces of the first and second protrusions push each other, assembly positions of the first and second separator plates are regulated. The first and second protrusions are arranged such that opposing side surfaces thereof are spaced from each other. A third gasket is arranged in a gap between the first and second protrusions.

Abstract: A fuel cell separator includes a first separator plate and a second separator plate for an anode or a cathode. The first separator plate and the second separator plate are adjacent to each other for assembly in a fuel cell stack. The fuel cell separator further includes a first protrusion formed at an edge portion of the first separator plate and protruding toward the second separator plate arranged facing the first separator plate and a second protrusion formed at an edge portion of the second separator plate and protruding toward the first separator plate arranged facing the second separator plate. With the first separator plate and the second separator plate adjacent to each other, since opposing side surfaces of the first protrusion and the second protrusion push each other, assembly positions of the first separator plate and the second separator plate are regulated.

Abstract: A fuel cell stack is provided to improve the flow of cooling water and reactant gas. The fuel cell stack includes a cooling water diffusion portion provided on each of the anode separator and the cathode separator. A first cooling water flow path area is provided between a land formed on the cooling water diffusion portion of the anode separator and a channel formed on the cooling water diffusion portion of the cathode separator. A second cooling water flow path area is provided between a channel formed on the cooling water diffusion portion of the anode separator and a land formed on the cooling water diffusion portion of the cathode separator. In addition, the first cooling water flow path area and the second cooling water flow path area are parallel with each other within at least a part of the cooling water diffusion portions.

Abstract: A fuel cell separator with a gasket for improved sealing is provided. The fuel cell separator with a gasket is capable of improving the contact pressure of a cooling surface-side airtight line by additionally forming a sub-airtight line in a region in which a gas aperture is not formed at a cooling surface-side position that corresponds to the cooling surface-side airtight line of the separator.