SEALING STRUCTURE OF SEPARATOR FOR FUEL CELL

• Main Authors: YOON, JONG JIN, KO, JAE JUN, SON, IK JAE, KIM, YOUNG MIN, LEE, JONG HYUN, KUM, YOUNG BUM, OH, SEUNG CHAN
• Format: Patent
• Language: English
• Published: 31.12.2008
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

An adhesive part airtight structure of a fuel cell separator is provided to improve the sealing property of an adhesive part by forming 3 airtight lines and to solve the problems on the leakage of floating cooling water to a membrane electrode assembly (MEA) and the degradation of performance by polluting a catalyst with the leaked component. An adhesive part airtight structure of a fuel cell separator of a fuel cell stack is formed with: a groove(114) in which adhesive is coated onto the adhesive part of one separator of two laminated separator(113) and is filled; and dam parts(114a, 114b) of the groove type in which one side of the section is opened on the boundary of two separators, along both sides of groove. The adhesive flowed out from the groove is additionally filled with each dam part by using the pressure for the adhesion of two separators in the state that adhesive is coated onto groove and is filled.