Patent ID: 9172098
Filing Date: 2015-10-27
Classification: H01M,Y02E

Abstract:
1. A fuel cell stack with improved corrosion resistance, in which a plurality of unit cells are stacked, the fuel cell stack comprising: a waterproof member which is formed at an outer edge of a metallic bipolar plate to seal a first gap between joined surfaces of the metallic bipolar plate, a membrane-electrode assembly, a gas diffusion layer, and a gasket from the outside thereof such that water vapor and moisture from the fuel cell stack are prevented from being brought into contact with an outer cut portion of each metallic bipolar plate by the waterproof member, wherein the waterproof member is formed by providing a gasket which is interposed between adjacent metallic bipolar plates and compressed by clamping force of the fuel cell stack to surround and completely seal the outer edges of the membrane-electrode assembly and the gas diffusion layer, the gasket including: