FUEL CELL SYSTEM AND STACK THEREOF

摘要

PURPOSE: A fuel cell system and stack thereof are provided to equalize the fuel flow length of unit cells in case of forming an inlet and outlet of fuel at the same side of the stack. CONSTITUTION: A fuel cell system(100) comprises: a fuel supply unit(10) for supplying hydrogen-containing fuel, an air supply unit(20) for supplying oxygen-containing air; and a stack which produces power and heat by electrochemical reaction of hydrogen and oxygen. The stack comprises: a unit cells; a fuel inlet(51); an unreacted fuel outlet(52); a fuel bypass passage(53) which is connected from the fuel inlet and opposite side of the fuel inlet; and a fuel distribution passage(54) for distributing fuel to the unit cells.