FUEL CELL SYSTEM INCLUDING A UNIT FOR ELECTRICAL ISOLATION OF A FUEL CELL STACK FROM A MANIFOLD ASSEMBLY AND METHOD THEREFOR

摘要

A fuel cell system with improved electrical isolation having a fuel cell stack with a positive potential end and a negative potential, a manifold for use in coupling gases to and from a face of the fuel cell stack, an electrical isolating assembly for electrically isolating the manifold from the stack, and a unit for adjusting an electrical potential of the manifold such as to impede the flow of electrolyte from the stack across the isolating assembly.