CARBON LAYER FOR METAL SEPARATOR OF FUEL CELL

The present invention relates to a carbon film deposited on a separator for a fuel cell, wherein the carbon film has a structure in which crystalline graphite is doped inside a matrix of amorphous carbon, so the surface is smooth and is excellent in durability even under stress generated in a proces...

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Bibliographische Detailangaben
Hauptverfasser:	JEON YOO TAEK, YUN JI HWAN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The present invention relates to a carbon film deposited on a separator for a fuel cell, wherein the carbon film has a structure in which crystalline graphite is doped inside a matrix of amorphous carbon, so the surface is smooth and is excellent in durability even under stress generated in a process of stacking and coupling unit cells of a fuel cell. Thus, the corrosion resistance, electrical conductivity, and excellent performance of the fuel cell can be maintained even during a long-term use by depositing the carbon film of the present invention on a separator for a fuel cell. 본 발명은 연료전지용 분리판에 증착되는 탄소막에 관한 것으로써, 탄소막은 비정질 카본의 매트릭스 내부에 결정성 흑연이 도핑된 구조를 가져 표면이 평활하여 연료전지의 단위 셀을 적층 및 체결하는 과정에서 발생하는 응력에도 내구성이 우수하다. 따라서, 본 발명의 탄소막을 연료전지용 분리판에 증착하면 연료전지의 내부식성, 전기전도성 및 장기 사용에도 우수한 성능을 유지할 수 있다.