FUEL CELL STACK

To provide a fuel cell stack including a plurality of cells stacked therein, each cell including a separator, in which a separator base material can be prevented from being corroded (dissolved) at lower cost without causing a deterioration in productivity, the separator base material being used in a...

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Bibliographic Details
Main Authors KONO TAKASHI, IGARASHI MASAO
Format Patent
LanguageEnglish
Japanese
Published 10.01.2019
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Summary:To provide a fuel cell stack including a plurality of cells stacked therein, each cell including a separator, in which a separator base material can be prevented from being corroded (dissolved) at lower cost without causing a deterioration in productivity, the separator base material being used in an end cell that is one or more cells located at an end on a plus side of the fuel cell stack.SOLUTION: A fuel cell stack 100 includes a plurality of cells stacked therein, each cell including a separator. In the fuel cell stack, a separator base material used in an end cell 20 located on a side of a plus side end of the fuel cell stack and a separator base material used in cells 30 other than the end cell 20 are metal materials different in quality of materials. A separator base material used in the end cell 20 is a material (for example, Ti) that has higher corrosion resistance than a separator base material (for example, SUS) used in cells other than the end cell 20.SELECTED DRAWING: Figure 3 【課題】セパレータを備えたセルの複数枚を積層した燃料電池スタックにおいて、燃料電池スタックのプラス側の端部に位置する1枚または1枚以上のセルである端部セルに用いられるセパレータ基材が腐食(溶解)するのを、より低コストでかつ生産性の悪化を招くことなく防止できるようにした燃料電池スタックを提供する。【解決手段】セパレータを備えたセルの複数枚を積層した燃料電池スタック100において、燃料電池スタックのプラス側の端部側に位置する端部セル20に用いられるセパレータ基材と、端部セル20以外のセル30に用いられるセパレータ基材とは材質が異なる金属材料であり、端部セル20に用いられるセパレータ基材は端部セル30以外のセルに用いられるセパレータ基材(例えば、SUS)よりも耐腐食性が高い材料(例えば、Ti)とする。【選択図】図3
Bibliography:Application Number: JP20170118030