Patent ID: 8530111

Claim:
A fuel cell, comprising: a membrane electrode assembly (MEA), configured to convert a chemical energy to an electrical energy; a first end plate, stacked on a first surface of the MEA and formed with a first coupling hole, a first surface of the first end plate facing the first surface of the MEA and the first coupling hole penetrating the first end plate; a second end plate, stacked on a second surface of the MEA, a first surface of the second end plate facing the second surface of the MEA; and a protrusion, formed on the first surface of the second end plate such that the protrusion penetrates the first coupling hole from the first surface of the first end plate to a second surface of the first end plate and an end part of the protrusion protrudes from the second surface of the first end plate, a length of the protrusion being larger than a thickness of the first end plate, wherein the end part of the protrusion is transformed to have a dome, mushroom or plate shape by physical pressure, and the first end plate and the second end plate are compressed and coupled to each other by transformation of the end part of the protrusion.