Abstract:
본 발명은 고분자 전해질 연료전지에 사용되는 막-전극-가스켓 접합체(Membrane-Electrode-Gasket Assembly, MEGA)의 제조방법에 관한 것으로서, 더욱 상세하게는 가스켓과 일체화된 막-전극 접합체(Membrane-Electrode Assembly, MEA)로써 취급이 용이하며, 전극 위에 직접 전해질막을 형성시킴으로써 기존의 상용 전해질막보다 막의 두께를 얇게 하는 것이 가능하게 되어 연료전지의 성능을 향상시킬 수 있고, 또한 일련의 공정으로 제작할 수 있어서 대량생산에 유리한 연료전지용 고성능 막-전극-가스켓 접합체(Membrane-Electrode-Gasket Assembly, MEGA)의 제조 방법에 관한 것이다.
Abstract:
Disclosed is a device for manufacturing fuel cell stack components. The disclosed device for manufacturing fuel cell stack components, which is to integrally bond gas diffusion layers on both surfaces of an MEA substrate including a sub-gasket on a membrane-electrode assembly, comprises: i) a frame; ii) an upper die installed on the frame to be able to move vertically; iii) a lower die installed on the frame and supporting the MEA substrate and the gas diffusion layers at the lower side of the upper die; iv) bonding units installed on the upper die and the lower die, respectively, and compressing the MEA substrate and the gas diffusion layers at high temperature and high pressure; v) steam spraying units arranged on the bonding unit to spray steam to the MEA substrate and the gas diffusion layers; and vi) an ultrapure water storage tank for storing ultrapure water to generate steam in the bonding units and supplying the ultrapure water to the bonding units.
Abstract:
PURPOSE: A fuel cell stack component pinhole detecting system is provided to inspect one component within an inspecting time of less than 10 seconds including a transferring time for each component because an X-ray examination and comparison/analysis of digital image signals respectively take less than 1 second. CONSTITUTION: A fuel cell stack component pinhole detecting system comprises an X-ray photographing unit(10), an image processor(20), and a vision computer(30). The X-ray photographing unit photographs a fuel cell stack component. The image processor converts image signals input by the X-ray photographing unit into images. The vision computer selectively receives the converted image signals, thereby analyzing the images. The vision computer distinguishes whether the corresponding fuel cell stack component is normal or not and integrates an image distinguishing result for managing component quality data of a stack and transmits an output command for controlling a photography to the X-ray photographing unit.
Abstract:
PURPOSE: A separating panel made of a conductive polymer or a carbon complex for a polymer electrolyte fuel cell is provided to achieve a light weight and a thin thickness, prevent corrosion, and reduce production cost owing to the simplified process, compared to the conventional separating panel. CONSTITUTION: The separating panel(1) for a polymer electrolyte fuel cell is mainly comprised of a conductive polymer or a carbon complex, wherein the conductive polymer is at least one selected from a group consisting of polyaniline, polyphenylene, polythienylene vinylene, polypyrrole, polyphenylene vinylene and polyacetylene, and the carbon complex is one added with at least one selected from a group consisting of phenol resin, vinyl ester resin, epoxy resin, reinforced polyester resin and polyimide resin. The separating panel is produced by (a) preparing a mesh type gas flow channel panel(10) and a collecting panel, wherein the separating panel is a serpentine-parallel type panel having a gas channel or a mesh type gas separating panel; (b) attaching a gasket to meshes except the meshes contacting with the electrode in the mesh type gas flow channel panel; and (c) attaching the collecting panel to the mesh type gas flow channel panel from the step (b).