Patent ID: 7608355
Filing Date: 2009-10-27
Classification: H01M,Y02E

Abstract:
1. A seal structure of a fuel cell, said fuel cell including an MEA, a separator made from metal, a gas passage formed in said separator, a gas manifold formed in said separator, a connecting gas passage formed in said separator and between said gas passage and said gas manifold, a coolant passage formed in said separator, a coolant manifold formed in said separator, a connecting coolant passage formed in said separator and between said coolant passage and said coolant manifold, and a seal including a gas seal line and a coolant seal line for preventing gas and/or coolant from leaking and defining a continuous seal line, said seal structure of a fuel cell, comprising: an interrupted back-up disposed at an at least one of said connecting gas passage and said connecting coolant passage, wherein said back-up is located on one side of said separator and a portion of the gas or coolant seal line located on the other side of said separator being disposed such that said back-up and said portion of said seal line are overlapped with each other in a fuel cell stacking direction, wherein said back-up is integrated within said separator and includes a rib having a convex and concave structure, and wherein the other of the gas or coolant seal line is located on the same side as said back-up and includes a straight line portion located on a same straight line as said back-up and wherein the gas seal line is made of adhesive.