Bipolar plate structure for fuel cell
AssigneeHyundai Motor Company
InventorHee Seok Jeong
Life of this patent
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Abstract
A bipolar plate structure for a fuel cell includes a cathode bipolar plate having a first flow field section to form cathode channels between the first flow field section and a first gas diffusion layer and a first land section to form coolant channels. An anode bipolar plate has a second flow field section to form anode channels between the second flow field section and a second gas diffusion layer and a second land section to form coolant channels. The cathode channels have an interdigitated channel structure, and the anode channels have a parallel channel structure. An air inlet manifold hole is formed along one of two long-side edge portions of a reaction region in the cathode and anode bipolar plates. An air outlet manifold hole is formed along the other of the two long-side edge portions of the reaction region.
Claims11
A bipolar plate structure for a fuel cell, comprising:
- a cathode bipolar plate having a first flow field section to form cathode channels between the first flow field section and a first gas diffusion layer, and a first land section to form coolant channels in a state in which the first land section is bonded to the first gas diffusion layer;
- and
- an anode bipolar plate having a second flow field section to form anode channels between the second flow field section and a second gas diffusion layer and a second land section to form coolant channels in a state in which the second land section is bonded to the anode gas diffusion layer,
- wherein the cathode channels have an interdigitated channel structure, and the anode channels have a parallel channel structure in which flow fields are arranged in parallel with each other,
- wherein a first air inlet manifold hole elongates along a central portion between the cathode bipolar plate and the anode bipolar plate in a longitudinal direction of the cathode and anode bipolar plates, in which the first and second flow field sections and the first and second land sections are formed, in the cathode bipolar plate and the anode bipolar plate, and air outlet manifold holes elongate at both long-side edge portions of the cathode bipolar plate and the anode bipolar plate in the longitudinal direction of the cathode and anode bipolar plates, and
- wherein a longitudinal direction of each of the cathode channels is a width direction of the reaction region.
Dependencies are inferred from the claim text.