Manufacturing method of a fuel cell

摘要

There is a need to improve the positioning accuracy in stacking gas separators. A guide section 58 provided in a fuel cell manufacturing apparatus 50 has first and second guide members 52 arranged to be parallel to each other and away from each other in a horizontal direction and extended in a stacking direction of the gas separators. The gas separator has first and second engagement elements 28 provided at corresponding positions to the first and the second guide members 52 to have a concave and/or convex shape formed along its outer periphery. A manufacturing method of a fuel cell includes a stacking step of stacking a plurality of members including gas separators by engaging the first engagement element with the first guide member and engaging the second engagement element with the second guide member. The gas separators stacked by the stacking step satisfy such a configuration that a first support location of the first engagement element and a second support location of the second engagement element are arranged at positions away from each other across a center of gravity of the gas separator and that the center of gravity is located in a lower area in a direction of gravity below a straight line of connecting the first support location with the second support location on a stacking surface of the gas separator.