Fuel cell and metal separator for fuel cell

摘要

A power generation cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. The first metal separator is a thin metal plate. A first seal member is formed integrally around the outer end of the first metal separator. A portion defining an orifice is provided in an outer marginal region of the first metal separator. The thickness H 1 of the first seal member in the area covering the portion defining the orifice is larger than the thickness of the H 2 of the first seal member in the area covering other portions.