Fuel cell stack with improved resistance to flooding

摘要

A fuel cell stack include a first group of cells, provided in the vicinity of the overall negative end of a fuel cell stack, and second group of cells, provided throughout the remainder of the fuel cell stack. The first cells have a higher resistance to flooding than the second cells, and the overall polarity of the fuel cell stack is reversed, the end of the stack where the water content is largest is made overall positive.