Integrated gas diffusion layer with sealing function and method of making the same

摘要

The present invention relates to the field of fuel cell technology and, more particularly, relates to an integrated gas diffusion layer with a sealing function and a method of making the same. The integrated gas diffusion layer includes a gas diffusion member and a sealing member having fuel inlet and outlet openings, oxidant inlet and outlet openings, and coolant inlet and outlet openings. The sealing member is sized to substantially cover the peripheral portion of the gas diffusion member. The sealing member and the gas diffusion member are integrally injection molded or adhered together by adhesive bonding.

主权项

1. An integrated gas diffusion layer with a sealing function, comprising:
a gas diffusion member; and a sealing member substantially covering a peripheral portion of the gas diffusion member, wherein the sealing member is provided with a fuel inlet opening, a fuel outlet opening, an oxidant inlet opening, an oxidant outlet opening, a coolant inlet opening and a coolant outlet opening, and wherein the sealing member comprises a lip ring having a lip portion raised from the sealing member and comprising a continuous integral piece that fully surrounds the oxidant inlet opening, the oxidant outlet opening, the coolant inlet opening and the coolant outlet opening.