Abstract:
PURPOSE: A manufacturing method of a membrane electrode assembly for a fuel cell is provided to simplify the manufacturing process of the membrane electrode assembly, and to reduce the amount of a white pole catalyst. CONSTITUTION: A manufacturing method of a membrane electrode assembly for a fuel cell to form a nano surface structure on a polymer electrolyte membrane comprises the following steps: plasma treating the surface of the polymer electrolyte membrane(30) located in a chamber for plasma treating using PACVD method, while maintaining the pressure range of the chamber into 1.0×10^(-7)~2.75×10^(-3) pascals; forming a nanostructure(40) with hair patterns on the surface of the polymer electrolyte membrane by plasma treating for 1 seconds~60 minutes; and evaporating a catalyst on the surface of the polymer electrolyte membrane.
Abstract:
본 발명은 샌드위치 인서트를 갖는 연료전지용 엔드 플레이트에 관한 것으로서, 더욱 상세하게는 금속인서트를 여러개의 플레이트가 적층된 샌드위치 인서트 구조로 제작하여 강성 확보 및 경량화를 실현시킬 수 있도록 한 샌드위치 인서트를 갖는 연료전지용 엔드 플레이트에 관한 것이다. 즉, 기존의 일체형 금속인서트와 달리, 특정 형상을 갖는 2장 이상의 플레이트를 적층시킨 샌드위치 인서트를 제작하여, 플라스틱 사출물로 사출 성형함으로써, 강성 확보는 물론 경량화를 실현시킬 수 있도록 한 샌드위치 인서트를 갖는 연료전지용 엔드 플레이트를 제공하고자 한 것이다.
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: An end plate for a fuel cell is provided to prevent the bending phenomenon by a resin pressure in an injection molding by selecting a sandwich insert and a bending prevention plate. CONSTITUTION: An end plate for a fuel cell comprises a sandwich insert(100) of which a plurality of plates are attached by an attaching unit. A bending prevention plate(200) is attached to the surface of an injection mold(400) on the opposite side of the side of a sandwich insert where a resin pressure is directly applied. A plastic injection material(300) is injection molded and the bending prevention plate can support the sandwich insert which is applied by a resin pressure in the injection mold. [Reference numerals] (AA) Demolding
Abstract:
본 발명의 실시예에 따른 연료전지의 핀홀 감지 시스템은, 조사될 연료전지부품 유닛이 놓이는 스테이지, 상기 스테이지를 움직여서 상기 연료전지부품 유닛을 회전시키는 구동부, 상기 샘플의 일측에 설치되어 회전하는 상기 연료전지부품 유닛에 엑스레이를 조사하는 엑스레이소스, 상기 연료전지부품 유닛을 통과한 엑스레이를 감지하는 이미지감지부, 및 상기 이미지감지부에서 감지된 영상을 3차원으로 재구성하는 컴퓨터단층촬영장치를 포함한다. 따라서, 연료전지스택의 부품 유닛을 회전시키고, 이 회전하는 유닛에 엑스레이를 조사함으로써 연료전지부품 유닛, 특히 막전극 접합체(MEA) 및 양극판의 내부에 형성된 핀홀을 효과적으로 감지할 수 있다. 연료전지, 스택, 막전극, 접합체, 양극판, 핀홀, X선, 컴퓨터단층촬영, FUEL, CELL, STACK, MEMBRANE, ELECTRODE, ASSEMBLY, BIPOLAR PLATE, PINHOLE, X-RAY, COMPUTED TOMOGRAPHY
Abstract:
PURPOSE: A joint device is provided to reduce a dead volume of an end plate and to pressurize and join the end plate through predetermined virtual pressure regardless of the length of a stack. CONSTITUTION: A fuel cell stack(100) includes: an electricity generating assembly(10) in which a plurality of unit cells(11) are consecutively arranged; end plates(30,40) which are closely arranged at both sides of the electricity generating assembly; and a joint device(200) which joins the end plates by a steel rope(111), pressurizes the electricity generating assembly by the tension of the steel rope, and enables the control of the length and tension of the steel rope.
Abstract:
PURPOSE: An end plate for a fuel cell is provided to achieve enough rigidity by including an insert laminated multiple plates, and to achieve weight lightening by reducing weight space on the plate. CONSTITUTION: An end plate for a fuel cell includes an insert(100) of a sandwich structure adhering more than two sheets of plate to both end parts with a combining tool. The surface of the sandwich insert is surrounded through the plastic injection. The sandwich insert comprises a first plate(110) having a first current collector combining groove(112) in the center part; a second plate(210) having more than two first losing weight spaces(212, 412) in the center part; a third plate(310) having a third current collector combining groove(312) in the center part; and a fourth plate(410) having a second losing weight space(412) in the center part.
Abstract:
PURPOSE: A pinhole detection system of a fuel cell is provided to effectively detect pinholes formed inside a positive electrode part by rotating component units of a fuel cell stack and irradiating X-rays to the rotating unit. CONSTITUTION: A pinhole detection system of a fuel cell comprises: a stage(130) in which a fuel cell unit(110) to be irradiated is put; a driving part(140) which rotates the fuel cell unit by moving the stage; an X-ray source(100) which is installed at one side of the sample and irradiates X-rays to the rotating fuel cell unit; an image detector(120) for sensing X-rays passing through the fuel cell unit; and a computed tomography device(150) for reconfiguring tomography images detected from the image detector.
Abstract:
본 발명은 휨 방지 플레이트를 갖는 연료전지용 엔드 플레이트에 관한 것으로서, 더욱 상세하게는 샌드위치 구조의 인서트에 휨 방지 플레이트를 조립하여 사출 성형함으로써, 사출압에 의한 인서트의 휨 현상을 용이하게 방지할 수 있도록 한 휨 방지 플레이트를 갖는 연료전지용 엔드 플레이트에 관한 것이다. 즉, 본 발명은 기존의 일체형 금속인서트와 달리, 특정 형상을 갖는 2장 이상의 플레이트를 적층시킨 샌드위치 인서트를 제작하는 동시에 샌드위치 인서트에 휨 방지 플레이트를 체결하여 사출 성형함으로써, 사출 성형시의 수지압에 의하여 샌드위치 인서트가 휘어지는 현상을 용이하게 방지할 수 있도록 한 휨 방지 플레이트를 갖는 연료전지용 엔드 플레이트를 제공하는데 그 목적이 있다.