Composite equipment for voltage-sharing membrane electrode assembly

Abstract

The invention relates to voltage-sharing membrane electrode assembly composite equipment which comprises a bottom plate assembly and an upper pressing assembly, the upper pressing assembly is designed above the bottom plate assembly and comprises an upper pressing plate, a gas bin plate and a gas bin pad, a rectangular through hole is formed in the middle of the upper pressing plate, the upper pressing plate is installed below the gas bin plate, and the gas bin pad is installed between the upper pressing plate and the gas bin plate; the rectangular through hole is covered with the air bin pad, and the upper pressing plate and the air bin pad form an air bin cavity; a circular groove is designed in the lower end of the middle of the air bin plate, and a hole channel is designed in one side of the bottom of the circular groove and communicated with one side face of the air bin plate. The bottom plate assembly comprises a clearance plate and a bottom heating plate, the hot-pressing moving plate is detachably mounted on the clearance plate, and a plurality of layers of membranes of the membrane electrode are stacked on the hot-pressing moving plate. The device has the advantages that the air bin pad is filled with the same air pressure by designing the air bin pad and inflating the air bin pad, the air bin pad is also an elastic element, the extruded surface can be changed according to the upper surface of the membrane electrode after the air bin pad is inflated, and the composite membrane electrode is uniformly molded.

Description

technical field [0001] The invention relates to the field of membrane electrode processing, in particular to a composite device for a pressure-equalizing membrane electrode assembly. Background technique [0002] Membrane Electrode Assembly (MEA, Membrane Electrode Assembly), also known as membrane electrode, is the key core component of fuel cell power generation. Membrane electrode and bipolar plates on both sides form the basic unit of fuel cell - fuel cell single cell It consists of gas diffusion layer, catalytic layer and proton exchange membrane. [0003] In the past, in the composite production process of membrane electrodes, the multilayer films were stacked together, extruded and heated through the upper and lower templates, but this heating extrusion method would cause uneven stress on the product and unqualified product quality; The sizes of the membranes are not all the same, and it is more difficult to uniformly stress the molding. SUMMARY OF THE INVENTION ...

AI Technical Summary

Problems solved by technology

[0003] In the past, in the membrane electrode composite production process, the multi-layer membranes were stacked together, extruded and heated through the upper and lower templates, but this heating and extrusion method would lead to The product is not uniformly stressed, and the product quality is unqualified; because sometimes the size of the multi-layer film is not exactly the same, it is more difficult for the mold to be evenly stressed

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