Patent ID: 7745043

Claim:
A fuel cell stack, comprising: a plurality of generators each comprising: a membrane-electrode assembly (MEA); a first separator on one side of the MEA and having an oxidant hole for receiving an oxidizing agent; and a second separator on the other side of the MEA having a fuel channel on a side facing the MEA, wherein the plurality of generators are consecutively on different locations of a same plane, respectively, the same plane substantially parallel to at least one of the one side or the other side of the MEA; a first fastening plate on one side of the generators for covering the first separators; and a second fastening plate on the other side of the generators for covering the second separators, wherein the first fastening plate comprises a beading unit configured as a bent portion of the first fastening plate, the beading unit protruding from the first fastening plate in a thickness direction of the first fastening plate, the thickness direction substantially perpendicular to the same plane, and wherein the first separator comprises a second beading unit configured as a bent portion of the first separator, the second beading unit protruding from the first separator in a thickness direction of the first separator, the second beading unit matching a concave portion of the beading unit of the first fastening plate.