Leaf-vein-like interdigital fuel cell flow channel field structure, fuel cell bipolar plate and fuel cell

• Main Authors: HE YAN, LIN KAIJIE, CUI YINGXUE, DAI WEIJIE, CHANG YITING
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a leaf-vein-like interdigital fuel cell flow channel field structure, a fuel cell bipolar plate and a fuel cell. The fuel cell flow channel field structure comprises a gas flowfield structure which includes a reaction gas inlet, a reaction gas outlet and gas flow channels. A main gas inlet flow channel is arranged along the central symmetry axis of the leaf-vein-like flowfield. The gas flow field structure includes two main gas outlet flow channels. One end of each main gas outlet flow channel is connected with the reaction gas outlet, and the other end extends alongthe outer edge of the leaf-vein-like flow field. An even number of branch gas inlet flow channels are symmetrically distributed on the two sides of the main gas inlet flow channel in pairs, and an even number of branch gas outlet flow channels are symmetrically distributed on the two sides of the main gas inlet flow channel in pairs. Therefore, when gas reaches the end of the branch gas outlet flow channels, the gas is forc