Sectional type fuel cell clamp

Abstract

The invention provides a sectional type fuel cell clamp. The sectional type fuel cell clamp comprises a cathode end, a membrane electrode and an anode end, the cathode end and the anode end are of a symmetrical structure. The cathode end comprises a cathode runner plate frame and a cathode bipolar plate; and the cathode bipolar plate is correspondingly arranged in a plurality of hole sites on thecathode runner plate frame. Cathode runners are arranged on the surfaces of one sides of the cathode bipolar plates respectively, and a plurality of cathode collector plates are arranged on the othersides of the cathode bipolar plates. And a cathode heating sheet and a cathode radiating sheet are sequentially arranged at one side of each of the plurality of cathode collector plates. A plurality of cathode flow collecting holes and a plurality of cathode temperature measuring holes are respectively formed in the cathode runner plate frame. The cathode end and the anode end have the same structure. By means of the mode, more accurate temperature control over different cathode bipolar plates and anode bipolar plates is achieved, and the method can be suitable for membrane electrode electrodes with catalyst concentration gradient in a plane, can also achieve temperature gradient setting and can be better applied to experimental research.

Description

technical field [0001] The invention belongs to the field of fuel cells, and in particular relates to a segmented fuel cell clamp. Background technique [0002] Due to its advantages of zero emissions, long battery life, and high energy conversion efficiency, fuel cells have become a promising power fixture in the market, but the durability of its components and the high cost of materials have always been the direction to be further improved. In the direction of the inlet and outlet of the parallel flow channel of the fuel cell, the concentration distribution of the reactant on the membrane electrode will be distributed in a fan shape. Due to the mismatch between the mass transfer rate and the reaction rate, the electrochemical reaction rate on the evenly distributed catalytic layer results in uneven current density on the membrane electrode due to the inconsistency of the mass transfer rate. As the reaction progresses, the amount of cathode water generated will also be aff...

AI Technical Summary

Problems solved by technology

Compared with a single cell, the data measured by the stack has more practical application value, but the cost of the fuel cell stack experiment using a large number of membrane electrodes will be very high

The existing single cell and stack are used in the study of catalyst gradient distribution and gradient temperature of fuel cell fixtures, which have certain limitations.

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