Fuel cell membrane electrode sealing assembly, packaging process and equipment for continuous packaging

Abstract

The invention discloses a fuel cell membrane electrode sealing assembly, wherein the area of a diffusion layer is larger than that of a through groove opening of a sealing frame, limiting through holes are formed in a catalytic electrode layer and the sealing frame, and therefore five-in-one layer-by-layer stacking type primary limiting is achieved; the invention further discloses a packaging process of the membrane electrode sealing assembly, continuous transportation of the membrane electrode sealing assembly is achieved through the clamp, the packaging process of welding is combined, and the undesirable phenomena that in the common hot-pressing packaging technology in the prior art, dislocation, looseness and the like occur in the carrying process of the membrane electrode sealing assembly are avoided. The invention further discloses continuous packaging equipment which comprises an assembly line, a welding line and a cooling line of the membrane electrode sealing assembly, the assembly line, the welding line and the cooling line are all completed in one step in the conveying process of the conveying belt, and therefore continuous packaging of the membrane electrode is achieved,and the problem that an existing membrane electrode sealing assembly cannot be continuously packaged is solved.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell membrane electrode sealing assembly, packaging technology and equipment for continuous packaging. Background technique [0002] At present, the development of the fuel cell industry is uneven. There is a certain gap between the technical level and production level between my country and developed countries, and the model and size of fuel cell stacks cannot be unified. On this basis, the membrane electrodes processed and produced by related companies or research institutions are generally characterized by complex sizes, small quantities, and most of them need to be customized exclusively. Therefore, some designs for large-scale and standardized production cannot be well implemented. [0003] Membrane electrode assemblies, or MEA (Membrane Electrode Assemblies), are the core components of hydrogen fuel cells, which are composed of the catalytic electrode layer of the hydrogen ...

AI Technical Summary

Problems solved by technology

[0007] In the existing hot pressing forming process for the production of fuel cell membrane electrodes, there are problems of poor hot pressing quality and low hot pressing accuracy

Among them, most of the existing hot-pressing operations are one-time molding, which is prone to uneven pressure or excessive pressure, and the glue is prone to sticking during the curing process; and it cannot ensure that the parts to be hot-pressed are easy to take and place At the same time, there will be no deviation during the hot pressing process, and the way of using the upper and lower pressing plates to stick white cardboard to carry out flat hot pressing on the membrane electrode assembly cannot ensure that the air bubbles in the membrane electrode assembly are completely removed. Morphology of MEA during flat and hot pressing

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