Method for operating a fuel cell stack, fuel cell stack and fuel cell system

摘要

The invention relates to a method for operating a fuel cell stack (2) comprising a number of fuel cells and at least one gas circuit (6, 8), wherein the fuel cells are supplied on the gas inlet side with oxygen and hydrogen as reaction gases, and wherein at least oxygen is circulated in the fuel cells via the gas circuit (6), so as to provide a fuel cell stack (2) with a simple structure and reliable intergas removal.