| 摘要 |
PURPOSE: A separator for fuel cell is provided to minimize the concentration and gas diffusion amount in a gas diffusion layer by improving a channel structure for reaction gas. CONSTITUTION: A separator for fuel cell comprises a porous channel plate(21) which is attached to the outer side of a gas diffusion layer and forms a reaction gas channel; and a main body plate which is attached to the outer side of the channel plate and seals the reaction gas channel; a protrusion(21a) which protrudes towards both sides of the channel plate and forms an uneven part. A land part(21b) which is attached to the gas diffusion layer is formed on the end part of the protrusion protruded from one side of the channel plate, and a joint part(21c) which is attached to the main body plate is formed on the end part of the protrusion protruding from the other side of the channel plate. |
