| 摘要 |
PURPOSE: A fuel cell stack is provided to maintain constant coupling force by coupling plates actively reacting to the expansion and contraction of an electricity-generating assembly according to the temperature change of the electricity-generating assembly. CONSTITUTION: A fuel cell stack comprises: an electricity-generating assembly(10) consisting of a plurality of unit cells continuously laminated; an end plate(30) arranged to be adhered to the outermost side of the electricity-generating assembly respectively; and a coupling plate(50) coupled to the end plate, and covering the top and the bottom of the electricity-generating assembly. The coupling plate comprises at least one coolant passage(71) capable of circulating coolant passed through the electricity-generating assembly. The coupling plate consists of metallic material capable of being expanded and contracted by heat. |
